TY  - JOUR
AU  - Milinčić, Danijel D.
AU  - Kostić, Aleksandar Ž.
AU  - Kolašinac, Stefan
AU  - Rac, Vladislav
AU  - Banjac, Nebojša
AU  - Lađarević, Jelena
AU  - Lević, Steva
AU  - Pavlović, Vladimir B.
AU  - Stanojević, Slađana P.
AU  - Nedović, Viktor A.
AU  - Pešić, Mirjana B.
PY  - 2024
UR  - https://www.sciencedirect.com/science/article/pii/S0268005X23008391
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6432
AB  - This study aimed to evaluate the physical (particle size and ζ-potential) and techno-functional properties (emulsifying and foaming) of goat milk powders enriched with grape pomace seed extract (TME), as promising food ingredients in the formulation of functional food. Attenuated Total Reflectance Fourier Transform Infrared (ATR-FTIR) and Raman spectroscopies, along with advanced chemometric tools were employed as well as Scanning Electron Microscopy (SEM) for analyzing TME powders. All powders exhibited a unimodal particle size distribution and ζ-potential values more negative than −36 mV. ATR-FTIR and Raman spectroscopies combined with principal component analysis (PCA) demonstrated distinct separation among skimmed goat milk (M), thermally treated skimmed goat milk (TM), and TME powders in different spectral regions (amide I, II, III, and fingerprint region). This separation resulted from the applied thermal treatment, the presence of phenolic compounds and their complexes with goat milk proteins, and the formation of Maillard reaction products. SEM analysis confirmed the different morphology and shapes of M, TM and TME powders. The 0.1% solutions of M, TM and TME exhibited good emulsifying properties (emulsion activity index and emulsion stability index) but showed poor foaming properties, except for the M sample. Solution concentrations higher than 0.1% for all samples (0.5% and 1.0%) displayed poor techno-functional properties. In summary, a schematic representation of the arrangement of casein micelles in 0.1% M, TM and TME samples, on oil/water and air/water surfaces was provided. The production of TME powders represents an innovative strategy for waste recovery in the production of functional food ingredients with good emulsifying properties.
T2  - Food Hydrocolloids
T2  - Food HydrocolloidsFood Hydrocolloids
T1  - Goat milk powders enriched with grape pomace seed extract: Physical and techno-functional properties
SP  - 109293
VL  - 146
DO  - 10.1016/j.foodhyd.2023.109293
ER  - 

@article{
author = "Milinčić, Danijel D. and Kostić, Aleksandar Ž. and Kolašinac, Stefan and Rac, Vladislav and Banjac, Nebojša and Lađarević, Jelena and Lević, Steva and Pavlović, Vladimir B. and Stanojević, Slađana P. and Nedović, Viktor A. and Pešić, Mirjana B.",
year = "2024",
abstract = "This study aimed to evaluate the physical (particle size and ζ-potential) and techno-functional properties (emulsifying and foaming) of goat milk powders enriched with grape pomace seed extract (TME), as promising food ingredients in the formulation of functional food. Attenuated Total Reflectance Fourier Transform Infrared (ATR-FTIR) and Raman spectroscopies, along with advanced chemometric tools were employed as well as Scanning Electron Microscopy (SEM) for analyzing TME powders. All powders exhibited a unimodal particle size distribution and ζ-potential values more negative than −36 mV. ATR-FTIR and Raman spectroscopies combined with principal component analysis (PCA) demonstrated distinct separation among skimmed goat milk (M), thermally treated skimmed goat milk (TM), and TME powders in different spectral regions (amide I, II, III, and fingerprint region). This separation resulted from the applied thermal treatment, the presence of phenolic compounds and their complexes with goat milk proteins, and the formation of Maillard reaction products. SEM analysis confirmed the different morphology and shapes of M, TM and TME powders. The 0.1% solutions of M, TM and TME exhibited good emulsifying properties (emulsion activity index and emulsion stability index) but showed poor foaming properties, except for the M sample. Solution concentrations higher than 0.1% for all samples (0.5% and 1.0%) displayed poor techno-functional properties. In summary, a schematic representation of the arrangement of casein micelles in 0.1% M, TM and TME samples, on oil/water and air/water surfaces was provided. The production of TME powders represents an innovative strategy for waste recovery in the production of functional food ingredients with good emulsifying properties.",
journal = "Food Hydrocolloids, Food HydrocolloidsFood Hydrocolloids",
title = "Goat milk powders enriched with grape pomace seed extract: Physical and techno-functional properties",
pages = "109293",
volume = "146",
doi = "10.1016/j.foodhyd.2023.109293"
}

Milinčić, D. D., Kostić, A. Ž., Kolašinac, S., Rac, V., Banjac, N., Lađarević, J., Lević, S., Pavlović, V. B., Stanojević, S. P., Nedović, V. A.,& Pešić, M. B.. (2024). Goat milk powders enriched with grape pomace seed extract: Physical and techno-functional properties. in Food Hydrocolloids, 146, 109293.
https://doi.org/10.1016/j.foodhyd.2023.109293

Milinčić DD, Kostić AŽ, Kolašinac S, Rac V, Banjac N, Lađarević J, Lević S, Pavlović VB, Stanojević SP, Nedović VA, Pešić MB. Goat milk powders enriched with grape pomace seed extract: Physical and techno-functional properties. in Food Hydrocolloids. 2024;146:109293.
doi:10.1016/j.foodhyd.2023.109293 .

Milinčić, Danijel D., Kostić, Aleksandar Ž., Kolašinac, Stefan, Rac, Vladislav, Banjac, Nebojša, Lađarević, Jelena, Lević, Steva, Pavlović, Vladimir B., Stanojević, Slađana P., Nedović, Viktor A., Pešić, Mirjana B., "Goat milk powders enriched with grape pomace seed extract: Physical and techno-functional properties" in Food Hydrocolloids, 146 (2024):109293,
https://doi.org/10.1016/j.foodhyd.2023.109293 . .

TY  - JOUR
AU  - Tang, Tian
AU  - Ye, Lyumeng
AU  - Chen, Yanrong
AU  - Xue, Jingyu
AU  - Shen, Xiaoqiang
AU  - Chen, Jinfei
AU  - Quarcoo, Fiona Hammond
AU  - Rac, Vladislav
AU  - Rakić, Vesna
AU  - Li, Xinbao
AU  - Du, Xuesen
PY  - 2024
UR  - https://www.sciencedirect.com/science/article/pii/S0926337323010111
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6464
AB  - The unique interface synergistic catalytic properties for metal oxide-supported catalysts have long been explored in several critical heterogeneous catalytic processes (e.g., CO oxidation reactions). However, interfacial synergistic catalysis is still a hitherto undescribed mechanism due to the lack of direct evidence at the atomic level. Thereinto, the CuOx-supported CeO2 (CuOx/CeO2) catalyst is a typical case. Herein, a combination study including representative theoretical calculations, in situ DRIFTS spectra and tailored molecular probe experiments supports a new carbonate-interface mediated Mars-van Krevelen (M−vK) mechanism for CO oxidation, i.e., CO molecules form carbonate intermediate species directly between spatial proximity (2.99 Å) double lattice oxygen sites with low oxygen vacancies formation energy (EformOv = 0.82 eV/0.83 eV) at the copper−ceria interface. The reaction energy barrier of this process is 0.32 eV, much lower than the 1.23 eV of the conventional M−vK mechanism. Besides, the spatial effect of double oxygen vacancies (Ov) generated by the depletion of intermediate carbonate species promotes the sustained and dynamic activation of O2, hence facilitating the efficient operation of the M−vK mechanism at low temperatures.
T2  - Applied Catalysis B: Environmental
T2  - Applied Catalysis B: EnvironmentalApplied Catalysis B: Environmental
T1  - Diving into the interface-mediated Mars-van Krevelen (M−vK) characteristic of CuOx-supported CeO2 catalysts
SP  - 123368
VL  - 342
DO  - 10.1016/j.apcatb.2023.123368
ER  - 

@article{
author = "Tang, Tian and Ye, Lyumeng and Chen, Yanrong and Xue, Jingyu and Shen, Xiaoqiang and Chen, Jinfei and Quarcoo, Fiona Hammond and Rac, Vladislav and Rakić, Vesna and Li, Xinbao and Du, Xuesen",
year = "2024",
abstract = "The unique interface synergistic catalytic properties for metal oxide-supported catalysts have long been explored in several critical heterogeneous catalytic processes (e.g., CO oxidation reactions). However, interfacial synergistic catalysis is still a hitherto undescribed mechanism due to the lack of direct evidence at the atomic level. Thereinto, the CuOx-supported CeO2 (CuOx/CeO2) catalyst is a typical case. Herein, a combination study including representative theoretical calculations, in situ DRIFTS spectra and tailored molecular probe experiments supports a new carbonate-interface mediated Mars-van Krevelen (M−vK) mechanism for CO oxidation, i.e., CO molecules form carbonate intermediate species directly between spatial proximity (2.99 Å) double lattice oxygen sites with low oxygen vacancies formation energy (EformOv = 0.82 eV/0.83 eV) at the copper−ceria interface. The reaction energy barrier of this process is 0.32 eV, much lower than the 1.23 eV of the conventional M−vK mechanism. Besides, the spatial effect of double oxygen vacancies (Ov) generated by the depletion of intermediate carbonate species promotes the sustained and dynamic activation of O2, hence facilitating the efficient operation of the M−vK mechanism at low temperatures.",
journal = "Applied Catalysis B: Environmental, Applied Catalysis B: EnvironmentalApplied Catalysis B: Environmental",
title = "Diving into the interface-mediated Mars-van Krevelen (M−vK) characteristic of CuOx-supported CeO2 catalysts",
pages = "123368",
volume = "342",
doi = "10.1016/j.apcatb.2023.123368"
}

Tang, T., Ye, L., Chen, Y., Xue, J., Shen, X., Chen, J., Quarcoo, F. H., Rac, V., Rakić, V., Li, X.,& Du, X.. (2024). Diving into the interface-mediated Mars-van Krevelen (M−vK) characteristic of CuOx-supported CeO2 catalysts. in Applied Catalysis B: Environmental, 342, 123368.
https://doi.org/10.1016/j.apcatb.2023.123368

Tang T, Ye L, Chen Y, Xue J, Shen X, Chen J, Quarcoo FH, Rac V, Rakić V, Li X, Du X. Diving into the interface-mediated Mars-van Krevelen (M−vK) characteristic of CuOx-supported CeO2 catalysts. in Applied Catalysis B: Environmental. 2024;342:123368.
doi:10.1016/j.apcatb.2023.123368 .

Tang, Tian, Ye, Lyumeng, Chen, Yanrong, Xue, Jingyu, Shen, Xiaoqiang, Chen, Jinfei, Quarcoo, Fiona Hammond, Rac, Vladislav, Rakić, Vesna, Li, Xinbao, Du, Xuesen, "Diving into the interface-mediated Mars-van Krevelen (M−vK) characteristic of CuOx-supported CeO2 catalysts" in Applied Catalysis B: Environmental, 342 (2024):123368,
https://doi.org/10.1016/j.apcatb.2023.123368 . .

TY  - JOUR
AU  - Stojanović, Srna Stojanović
AU  - Rac, Vladislav
AU  - Mojsilović, Kristina Mojsilović
AU  - Vasilić, Rastko
AU  - Marković, Smilja
AU  - Damjanović-Vasilić, Ljiljana
PY  - 2023
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6383
AB  - Photocatalytic degradation of bisphenol A (BPA) was investigated using commercial TiO2 P25 nanoparticles supported on natural zeolite clinoptilolite (Cli). Employing ultrasound assisted solid-state dispersion method hybrid photocatalyst containing 20 wt% of TiO2, marked TCli-20, was prepared. The structural, morphological and surface properties, and particle size distribution of TCli-20 were studied by X-ray powder diffraction, Fourier transform infrared spectroscopy, ultraviolet–visible diffuse reflectance spectroscopy, scanning electron microscopy with energy dispersive spectroscopy, atomic force microscopy, Brunner-Emmet-Teller method and laser diffraction. The results revealed a successful loading of TiO2 P25 nanoparticles on Cli surface and the preservation of both zeolitic structure and optical properties of TiO2. The influence of catalyst dose, pH value and the addition of hydrogen peroxide (H2O2) was evaluated. The optimal reaction conditions were 2 g/L of catalyst at near-neutral conditions (pH = 6.4) for complete BPA (5 mg/L) photodegradation after 180 min of exposure to simulated solar light. The addition of H2O2 was beneficial for the degradation process and led to the removal of BPA after 120 min of irradiation. BPA removal (60% for 180 min of irradiation) was reduced when TCli-20 was tested in bottled drinking water due to the presence of bicarbonate ions which acted as scavengers for hydroxyl radicals. Even though the photocatalytic activity of TCli-20 decreased after several cycles of usage, 70% of BPA was still successfully degraded during the fourth cycle. The reusability study showed easy separation, stability and good photocatalytic ability of investigated cost-effective hybrid photocatalyst. © 2023, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
T2  - Environmental Science and Pollution Research
T2  - Environmental Science and Pollution Research
T1  - Photocatalytic degradation of bisphenol A in aqueous solution using TiO2/clinoptilolite hybrid photocatalyst
DO  - 10.1007/s11356-023-28397-w
ER  - 

@article{
author = "Stojanović, Srna Stojanović and Rac, Vladislav and Mojsilović, Kristina Mojsilović and Vasilić, Rastko and Marković, Smilja and Damjanović-Vasilić, Ljiljana",
year = "2023",
abstract = "Photocatalytic degradation of bisphenol A (BPA) was investigated using commercial TiO2 P25 nanoparticles supported on natural zeolite clinoptilolite (Cli). Employing ultrasound assisted solid-state dispersion method hybrid photocatalyst containing 20 wt% of TiO2, marked TCli-20, was prepared. The structural, morphological and surface properties, and particle size distribution of TCli-20 were studied by X-ray powder diffraction, Fourier transform infrared spectroscopy, ultraviolet–visible diffuse reflectance spectroscopy, scanning electron microscopy with energy dispersive spectroscopy, atomic force microscopy, Brunner-Emmet-Teller method and laser diffraction. The results revealed a successful loading of TiO2 P25 nanoparticles on Cli surface and the preservation of both zeolitic structure and optical properties of TiO2. The influence of catalyst dose, pH value and the addition of hydrogen peroxide (H2O2) was evaluated. The optimal reaction conditions were 2 g/L of catalyst at near-neutral conditions (pH = 6.4) for complete BPA (5 mg/L) photodegradation after 180 min of exposure to simulated solar light. The addition of H2O2 was beneficial for the degradation process and led to the removal of BPA after 120 min of irradiation. BPA removal (60% for 180 min of irradiation) was reduced when TCli-20 was tested in bottled drinking water due to the presence of bicarbonate ions which acted as scavengers for hydroxyl radicals. Even though the photocatalytic activity of TCli-20 decreased after several cycles of usage, 70% of BPA was still successfully degraded during the fourth cycle. The reusability study showed easy separation, stability and good photocatalytic ability of investigated cost-effective hybrid photocatalyst. © 2023, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.",
journal = "Environmental Science and Pollution Research, Environmental Science and Pollution Research",
title = "Photocatalytic degradation of bisphenol A in aqueous solution using TiO2/clinoptilolite hybrid photocatalyst",
doi = "10.1007/s11356-023-28397-w"
}

Stojanović, S. S., Rac, V., Mojsilović, K. M., Vasilić, R., Marković, S.,& Damjanović-Vasilić, L.. (2023). Photocatalytic degradation of bisphenol A in aqueous solution using TiO2/clinoptilolite hybrid photocatalyst. in Environmental Science and Pollution Research.
https://doi.org/10.1007/s11356-023-28397-w

Stojanović SS, Rac V, Mojsilović KM, Vasilić R, Marković S, Damjanović-Vasilić L. Photocatalytic degradation of bisphenol A in aqueous solution using TiO2/clinoptilolite hybrid photocatalyst. in Environmental Science and Pollution Research. 2023;.
doi:10.1007/s11356-023-28397-w .

Stojanović, Srna Stojanović, Rac, Vladislav, Mojsilović, Kristina Mojsilović, Vasilić, Rastko, Marković, Smilja, Damjanović-Vasilić, Ljiljana, "Photocatalytic degradation of bisphenol A in aqueous solution using TiO2/clinoptilolite hybrid photocatalyst" in Environmental Science and Pollution Research (2023),
https://doi.org/10.1007/s11356-023-28397-w . .

TY  - JOUR
AU  - Aleksić, Katarina
AU  - Stojković Simatović, Ivana
AU  - Stanković, Ana
AU  - Veselinović, Ljiljana
AU  - Stojadinović, Stevan
AU  - Rac, Vladislav
AU  - Radmilović, Nadežda
AU  - Rajić, Vladimir
AU  - Škapin, Srečo Davor
AU  - Mančić, Lidija
AU  - Marković, Smilja
PY  - 2023
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6368
AB  - Catalytic materials are the greatest challenge for the commercial application of water electrolysis (WEs) and fuel cells (FCs) as clean energy technologies. There is a need to find an alternative to expensive and unavailable platinum group metal (PGM) catalysts. This study aimed to reduce the cost of PGM materials by replacing Ru with RuO2 and lowering the amount of RuO2 by adding abundant and multifunctional ZnO. A ZnO@RuO2 composite in a 10:1 molar ratio was synthesized by microwave processing of a precipitate as a green, low-cost, and fast method, and then annealed at 300°C and 600°C to improve the catalytic properties. The physicochemical properties of the ZnO@RuO2 composites were investigated by X-ray powder diffraction (XRD), Raman and Fourier transform infrared (FTIR) spectroscopy, field emission scanning electron microscopy (FESEM), UV-Vis diffuse reflectance spectroscopy (DRS), and photoluminescence (PL) spectroscopy. The electrochemical activity of the samples was investigated by linear sweep voltammetry in acidic and alkaline electrolytes. We observed good bifunctional catalytic activity of the ZnO@RuO2 composites toward HER and OER in both electrolytes. The improved bifunctional catalytic activity of the ZnO@RuO2 composite by annealing was discussed and attributed to the reduced number of bulk oxygen vacancies and the increased number of established heterojunctions. Copyright © 2023 Aleksić, Stojković Simatović, Stanković, Veselinović, Stojadinović, Rac, Radmilović, Rajić, Škapin, Mančić and Marković.
T2  - Frontiers in Chemistry
T2  - Frontiers in Chemistry
T1  - Enhancement of ZnO@RuO2 bifunctional photo-electro catalytic activity toward water splitting
VL  - 11
DO  - 10.3389/fchem.2023.1173910
ER  - 

@article{
author = "Aleksić, Katarina and Stojković Simatović, Ivana and Stanković, Ana and Veselinović, Ljiljana and Stojadinović, Stevan and Rac, Vladislav and Radmilović, Nadežda and Rajić, Vladimir and Škapin, Srečo Davor and Mančić, Lidija and Marković, Smilja",
year = "2023",
abstract = "Catalytic materials are the greatest challenge for the commercial application of water electrolysis (WEs) and fuel cells (FCs) as clean energy technologies. There is a need to find an alternative to expensive and unavailable platinum group metal (PGM) catalysts. This study aimed to reduce the cost of PGM materials by replacing Ru with RuO2 and lowering the amount of RuO2 by adding abundant and multifunctional ZnO. A ZnO@RuO2 composite in a 10:1 molar ratio was synthesized by microwave processing of a precipitate as a green, low-cost, and fast method, and then annealed at 300°C and 600°C to improve the catalytic properties. The physicochemical properties of the ZnO@RuO2 composites were investigated by X-ray powder diffraction (XRD), Raman and Fourier transform infrared (FTIR) spectroscopy, field emission scanning electron microscopy (FESEM), UV-Vis diffuse reflectance spectroscopy (DRS), and photoluminescence (PL) spectroscopy. The electrochemical activity of the samples was investigated by linear sweep voltammetry in acidic and alkaline electrolytes. We observed good bifunctional catalytic activity of the ZnO@RuO2 composites toward HER and OER in both electrolytes. The improved bifunctional catalytic activity of the ZnO@RuO2 composite by annealing was discussed and attributed to the reduced number of bulk oxygen vacancies and the increased number of established heterojunctions. Copyright © 2023 Aleksić, Stojković Simatović, Stanković, Veselinović, Stojadinović, Rac, Radmilović, Rajić, Škapin, Mančić and Marković.",
journal = "Frontiers in Chemistry, Frontiers in Chemistry",
title = "Enhancement of ZnO@RuO2 bifunctional photo-electro catalytic activity toward water splitting",
volume = "11",
doi = "10.3389/fchem.2023.1173910"
}

Aleksić, K., Stojković Simatović, I., Stanković, A., Veselinović, L., Stojadinović, S., Rac, V., Radmilović, N., Rajić, V., Škapin, S. D., Mančić, L.,& Marković, S.. (2023). Enhancement of ZnO@RuO2 bifunctional photo-electro catalytic activity toward water splitting. in Frontiers in Chemistry, 11.
https://doi.org/10.3389/fchem.2023.1173910

Aleksić K, Stojković Simatović I, Stanković A, Veselinović L, Stojadinović S, Rac V, Radmilović N, Rajić V, Škapin SD, Mančić L, Marković S. Enhancement of ZnO@RuO2 bifunctional photo-electro catalytic activity toward water splitting. in Frontiers in Chemistry. 2023;11.
doi:10.3389/fchem.2023.1173910 .

Aleksić, Katarina, Stojković Simatović, Ivana, Stanković, Ana, Veselinović, Ljiljana, Stojadinović, Stevan, Rac, Vladislav, Radmilović, Nadežda, Rajić, Vladimir, Škapin, Srečo Davor, Mančić, Lidija, Marković, Smilja, "Enhancement of ZnO@RuO2 bifunctional photo-electro catalytic activity toward water splitting" in Frontiers in Chemistry, 11 (2023),
https://doi.org/10.3389/fchem.2023.1173910 . .

TY  - CONF
AU  - Lević, Steva
AU  - Salević, Ana
AU  - Rac, Vladislav
AU  - Nedović, Viktor
AU  - Antić, Mališa
AU  - Rabrenović, Biljana
AU  - Malićanin, Marko
AU  - Rakić, Vesna
PY  - 2022
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6861
AB  - In recent decades, wine production has been expanding, with emerging wine regions and new small and medium-sized wineries. Winemaking produces large amounts of grape seeds, often discarded as waste, which are rich in oil, dietary fibers, tocopherols, and polyphenols. If used, the seeds are usually utilized as a source of oil, while the cake remaining after oil extraction is the additional waste with limited usage. Thus, we are working to establish the procedures for the complete utilization of grape seeds with zero byproducts. Pinot Noir variety from a small winery, Zmajevac, Serbia, was used. The main benefit of the oil, obtained by cold pressing, is the high content of unsaturated fatty acids, i.e., linoleic (70%) and oleic acid (19%), with a total oil content of 15 % and an 11 % yield after cold pressing. To facilitate handling, potential addition to food products, and its protection, grape seed oil was encapsulated into calcium alginate-based gel capsules. Encapsulation techniques, electrostatic extrusion, and atomization were used to produce finely powdered encapsulates with encapsulation efficiencies of close to 90 %. The potential use of these capsules is in the substitution of saturated fats in food products where the capsules, apart from protecting oil, could prevent its leakage from food matrices. The results showed that the oil cake could be a promising source of dietary fibers. It contained up to 38 % of insoluble dietary fibers and around 2% of soluble ones (w/w). The high content of insoluble dietary fibers is a basis for further modifications to increase the content of soluble fibers and modulate the nutritional properties of the oil cake. Thus, we tested the enzymatic and hydrothermal processes as modification procedures. The results showed that the enzymatic treatment was more promising regarding the control of soluble/insoluble fibers ratio. Also, the enzymatic process should be more cost- effective regarding capacity and energy consumption.
PB  - European Declaration on Food, Technology and Nutrition Network, Ljubljana
C3  - CEFood Congress Book. 11th Central European Congress on Food and Nutrition “Food, technology and nutrition for healthy people in a healthy environment“
T1  - Towards zero waste food production: utilization of grape seeds
SP  - P-144
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_6861
ER  - 

@conference{
author = "Lević, Steva and Salević, Ana and Rac, Vladislav and Nedović, Viktor and Antić, Mališa and Rabrenović, Biljana and Malićanin, Marko and Rakić, Vesna",
year = "2022",
abstract = "In recent decades, wine production has been expanding, with emerging wine regions and new small and medium-sized wineries. Winemaking produces large amounts of grape seeds, often discarded as waste, which are rich in oil, dietary fibers, tocopherols, and polyphenols. If used, the seeds are usually utilized as a source of oil, while the cake remaining after oil extraction is the additional waste with limited usage. Thus, we are working to establish the procedures for the complete utilization of grape seeds with zero byproducts. Pinot Noir variety from a small winery, Zmajevac, Serbia, was used. The main benefit of the oil, obtained by cold pressing, is the high content of unsaturated fatty acids, i.e., linoleic (70%) and oleic acid (19%), with a total oil content of 15 % and an 11 % yield after cold pressing. To facilitate handling, potential addition to food products, and its protection, grape seed oil was encapsulated into calcium alginate-based gel capsules. Encapsulation techniques, electrostatic extrusion, and atomization were used to produce finely powdered encapsulates with encapsulation efficiencies of close to 90 %. The potential use of these capsules is in the substitution of saturated fats in food products where the capsules, apart from protecting oil, could prevent its leakage from food matrices. The results showed that the oil cake could be a promising source of dietary fibers. It contained up to 38 % of insoluble dietary fibers and around 2% of soluble ones (w/w). The high content of insoluble dietary fibers is a basis for further modifications to increase the content of soluble fibers and modulate the nutritional properties of the oil cake. Thus, we tested the enzymatic and hydrothermal processes as modification procedures. The results showed that the enzymatic treatment was more promising regarding the control of soluble/insoluble fibers ratio. Also, the enzymatic process should be more cost- effective regarding capacity and energy consumption.",
publisher = "European Declaration on Food, Technology and Nutrition Network, Ljubljana",
journal = "CEFood Congress Book. 11th Central European Congress on Food and Nutrition “Food, technology and nutrition for healthy people in a healthy environment“",
title = "Towards zero waste food production: utilization of grape seeds",
pages = "P-144",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_6861"
}

Lević, S., Salević, A., Rac, V., Nedović, V., Antić, M., Rabrenović, B., Malićanin, M.,& Rakić, V.. (2022). Towards zero waste food production: utilization of grape seeds. in CEFood Congress Book. 11th Central European Congress on Food and Nutrition “Food, technology and nutrition for healthy people in a healthy environment“
European Declaration on Food, Technology and Nutrition Network, Ljubljana., P-144.
https://hdl.handle.net/21.15107/rcub_agrospace_6861

Lević S, Salević A, Rac V, Nedović V, Antić M, Rabrenović B, Malićanin M, Rakić V. Towards zero waste food production: utilization of grape seeds. in CEFood Congress Book. 11th Central European Congress on Food and Nutrition “Food, technology and nutrition for healthy people in a healthy environment“. 2022;:P-144.
https://hdl.handle.net/21.15107/rcub_agrospace_6861 .

Lević, Steva, Salević, Ana, Rac, Vladislav, Nedović, Viktor, Antić, Mališa, Rabrenović, Biljana, Malićanin, Marko, Rakić, Vesna, "Towards zero waste food production: utilization of grape seeds" in CEFood Congress Book. 11th Central European Congress on Food and Nutrition “Food, technology and nutrition for healthy people in a healthy environment“ (2022):P-144,
https://hdl.handle.net/21.15107/rcub_agrospace_6861 .

TY  - JOUR
AU  - Stojanović, S.
AU  - Vranješ, M.
AU  - Šaponjić, Z.
AU  - Rac, V.
AU  - Rakić, V.
AU  - Ignjatović, Lj.
AU  - Damjanović-Vasilić, Lj.
PY  - 2022
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6120
AB  - Removal of the β-blocker atenolol from an aqueous solution was studied using TiO2/zeolites, prepared by a simple and cost-effective solid-state dispersion method. Synthetic zeolites 13X and ZSM-5 (Si/Al = 40) and natural zeolite clinoptilolite were used as one component of the hybrid materials, whereas TiO2 nanocrystals obtained from TiO2 nanotubes and P25 TiO2 nanoparticles were used as the other. The synthesized materials were characterized by X-ray powder diffraction, transmission electron microscopy, Fourier transformed infrared spectroscopy, ultraviolet–visible diffuse reflectance spectroscopy and scanning electron microscopy with energy-dispersive spectroscopy. The photocatalytic activity for the degradation of atenolol was investigated under simulated solar light. Additionally, the effect of initial pH on atenolol removal and the reusability of prepared catalysts were tested. The best loading of TiO2 was 20 wt% over all investigated zeolites. The degradation of atenolol followed the pseudo-first-order kinetics. The photocatalytic degradation of atenolol after 70 min of irradiation was ~ 50% for TiO2/13X materials, ~ 45% for clinoptilolite combined with P25 TiO2 and ~ 57% for clinoptilolite combined with TiO2 nanocrystals obtained from TiO2 nanotubes. The results showed the highest removal efficiency after 70 min of irradiation for ZSM-5 combined with P25 TiO2 (~ 94%), followed by ZSM-5 combined with TiO2 nanocrystals obtained from TiO2 nanotubes (~ 88%) at near-neutral pH (~ 6.5). The total removal of atenolol from an aqueous solution for TiO2/ZSM-5 materials resulted from two processes: adsorption and photocatalytic degradation. The TiO2/ZSM-5 photocatalysts can be easily recovered and reused as their activity was preserved after four cycles.
T2  - International Journal of Environmental Science and Technology
T2  - International Journal of Environmental Science and TechnologyInt. J. Environ. Sci. Technol.
T1  - Photocatalytic performance of TiO2/zeolites under simulated solar light for removal of atenolol from aqueous solution
DO  - 10.1007/s13762-022-04305-6
ER  - 

@article{
author = "Stojanović, S. and Vranješ, M. and Šaponjić, Z. and Rac, V. and Rakić, V. and Ignjatović, Lj. and Damjanović-Vasilić, Lj.",
year = "2022",
abstract = "Removal of the β-blocker atenolol from an aqueous solution was studied using TiO2/zeolites, prepared by a simple and cost-effective solid-state dispersion method. Synthetic zeolites 13X and ZSM-5 (Si/Al = 40) and natural zeolite clinoptilolite were used as one component of the hybrid materials, whereas TiO2 nanocrystals obtained from TiO2 nanotubes and P25 TiO2 nanoparticles were used as the other. The synthesized materials were characterized by X-ray powder diffraction, transmission electron microscopy, Fourier transformed infrared spectroscopy, ultraviolet–visible diffuse reflectance spectroscopy and scanning electron microscopy with energy-dispersive spectroscopy. The photocatalytic activity for the degradation of atenolol was investigated under simulated solar light. Additionally, the effect of initial pH on atenolol removal and the reusability of prepared catalysts were tested. The best loading of TiO2 was 20 wt% over all investigated zeolites. The degradation of atenolol followed the pseudo-first-order kinetics. The photocatalytic degradation of atenolol after 70 min of irradiation was ~ 50% for TiO2/13X materials, ~ 45% for clinoptilolite combined with P25 TiO2 and ~ 57% for clinoptilolite combined with TiO2 nanocrystals obtained from TiO2 nanotubes. The results showed the highest removal efficiency after 70 min of irradiation for ZSM-5 combined with P25 TiO2 (~ 94%), followed by ZSM-5 combined with TiO2 nanocrystals obtained from TiO2 nanotubes (~ 88%) at near-neutral pH (~ 6.5). The total removal of atenolol from an aqueous solution for TiO2/ZSM-5 materials resulted from two processes: adsorption and photocatalytic degradation. The TiO2/ZSM-5 photocatalysts can be easily recovered and reused as their activity was preserved after four cycles.",
journal = "International Journal of Environmental Science and Technology, International Journal of Environmental Science and TechnologyInt. J. Environ. Sci. Technol.",
title = "Photocatalytic performance of TiO2/zeolites under simulated solar light for removal of atenolol from aqueous solution",
doi = "10.1007/s13762-022-04305-6"
}

Stojanović, S., Vranješ, M., Šaponjić, Z., Rac, V., Rakić, V., Ignjatović, Lj.,& Damjanović-Vasilić, Lj.. (2022). Photocatalytic performance of TiO2/zeolites under simulated solar light for removal of atenolol from aqueous solution. in International Journal of Environmental Science and Technology.
https://doi.org/10.1007/s13762-022-04305-6

Stojanović S, Vranješ M, Šaponjić Z, Rac V, Rakić V, Ignjatović L, Damjanović-Vasilić L. Photocatalytic performance of TiO2/zeolites under simulated solar light for removal of atenolol from aqueous solution. in International Journal of Environmental Science and Technology. 2022;.
doi:10.1007/s13762-022-04305-6 .

Stojanović, S., Vranješ, M., Šaponjić, Z., Rac, V., Rakić, V., Ignjatović, Lj., Damjanović-Vasilić, Lj., "Photocatalytic performance of TiO2/zeolites under simulated solar light for removal of atenolol from aqueous solution" in International Journal of Environmental Science and Technology (2022),
https://doi.org/10.1007/s13762-022-04305-6 . .

TY  - JOUR
AU  - Bosnar, Sanja
AU  - Rac, Vladislav
AU  - Stošić, Dušan
AU  - Travert, Arnaud
AU  - Postole, Georgeta
AU  - Auroux, Aline
AU  - Škapin, Srečo
AU  - Damjanović-Vasilić, Ljiljana
AU  - Bronić, Josip
AU  - Du, Xuesen
AU  - Marković, Smilja
AU  - Pavlović, Vladimir
AU  - Rakić, Vesna
PY  - 2021
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5961
AB  - Dual templating approach, using hexadecyltrimethylammonium bromide (CTAB), was employed in an attempt to synthesize hierarchical ZSM-5 zeolite. Amount of mesoporogen and the duration of aging of the precursor were varied. Majority of the synthesis routes resulted in phase separation, yielding separate ZSM-5 and amorphous mesoporous material. The relative amounts of the two phases were dependent on the CTAB amount ratio and also significantly on the duration of precursor aging before CTAB addition. One particular combination of the two factors led to the formation of a homogeneous hierarchical form of ZSM-5 with leafy morphology, consisting of intergrown thin crystalline sheets which formed flower-like structures. The hierarchical ZSM-5 possessed significant microporous (≈95 m2/g) and highly developed mesoporous surface (≈470 m2/g), with a relatively broad distribution of mesopore sizes (<20 nm). The acidity of all samples was studied in detail. Isothermal microcalorimetry/volumetry of ammonia adsorption provided quantitative data on the number and distribution of strength of acidic sites. In situ FTIR of pyridine and collidine adsorption was used to quantify Brønsted and Lewis acid sites, and to provide information on their location - in the micropores or mesopores/external surface. The hierarchical ZSM-5 possessed both Lewis and Brønsted acidity, with Brønsted sites located mainly in the micropores. All samples were fully characterized using XRD, low temperature nitrogen adsorption, FESEM and EDS. The synthetic route used for obtaining the ZSM-5 zeolite with flower-like morphology is a simple strategy for preparing hierarchical ZSM-5 forms targeting enhanced diffusivity and accessibility of catalytically active sites.
PB  - Elsevier B.V.
T2  - Microporous and Mesoporous Materials
T1  - Overcoming phase separation in dual templating: A homogeneous hierarchical ZSM-5 zeolite with flower-like morphology, synthesis and in-depth acidity study
SP  - 111534
VL  - 329
DO  - 10.1016/j.micromeso.2021.111534
ER  - 

@article{
author = "Bosnar, Sanja and Rac, Vladislav and Stošić, Dušan and Travert, Arnaud and Postole, Georgeta and Auroux, Aline and Škapin, Srečo and Damjanović-Vasilić, Ljiljana and Bronić, Josip and Du, Xuesen and Marković, Smilja and Pavlović, Vladimir and Rakić, Vesna",
year = "2021",
abstract = "Dual templating approach, using hexadecyltrimethylammonium bromide (CTAB), was employed in an attempt to synthesize hierarchical ZSM-5 zeolite. Amount of mesoporogen and the duration of aging of the precursor were varied. Majority of the synthesis routes resulted in phase separation, yielding separate ZSM-5 and amorphous mesoporous material. The relative amounts of the two phases were dependent on the CTAB amount ratio and also significantly on the duration of precursor aging before CTAB addition. One particular combination of the two factors led to the formation of a homogeneous hierarchical form of ZSM-5 with leafy morphology, consisting of intergrown thin crystalline sheets which formed flower-like structures. The hierarchical ZSM-5 possessed significant microporous (≈95 m2/g) and highly developed mesoporous surface (≈470 m2/g), with a relatively broad distribution of mesopore sizes (<20 nm). The acidity of all samples was studied in detail. Isothermal microcalorimetry/volumetry of ammonia adsorption provided quantitative data on the number and distribution of strength of acidic sites. In situ FTIR of pyridine and collidine adsorption was used to quantify Brønsted and Lewis acid sites, and to provide information on their location - in the micropores or mesopores/external surface. The hierarchical ZSM-5 possessed both Lewis and Brønsted acidity, with Brønsted sites located mainly in the micropores. All samples were fully characterized using XRD, low temperature nitrogen adsorption, FESEM and EDS. The synthetic route used for obtaining the ZSM-5 zeolite with flower-like morphology is a simple strategy for preparing hierarchical ZSM-5 forms targeting enhanced diffusivity and accessibility of catalytically active sites.",
publisher = "Elsevier B.V.",
journal = "Microporous and Mesoporous Materials",
title = "Overcoming phase separation in dual templating: A homogeneous hierarchical ZSM-5 zeolite with flower-like morphology, synthesis and in-depth acidity study",
pages = "111534",
volume = "329",
doi = "10.1016/j.micromeso.2021.111534"
}

Bosnar, S., Rac, V., Stošić, D., Travert, A., Postole, G., Auroux, A., Škapin, S., Damjanović-Vasilić, L., Bronić, J., Du, X., Marković, S., Pavlović, V.,& Rakić, V.. (2021). Overcoming phase separation in dual templating: A homogeneous hierarchical ZSM-5 zeolite with flower-like morphology, synthesis and in-depth acidity study. in Microporous and Mesoporous Materials
Elsevier B.V.., 329, 111534.
https://doi.org/10.1016/j.micromeso.2021.111534

Bosnar S, Rac V, Stošić D, Travert A, Postole G, Auroux A, Škapin S, Damjanović-Vasilić L, Bronić J, Du X, Marković S, Pavlović V, Rakić V. Overcoming phase separation in dual templating: A homogeneous hierarchical ZSM-5 zeolite with flower-like morphology, synthesis and in-depth acidity study. in Microporous and Mesoporous Materials. 2021;329:111534.
doi:10.1016/j.micromeso.2021.111534 .

Bosnar, Sanja, Rac, Vladislav, Stošić, Dušan, Travert, Arnaud, Postole, Georgeta, Auroux, Aline, Škapin, Srečo, Damjanović-Vasilić, Ljiljana, Bronić, Josip, Du, Xuesen, Marković, Smilja, Pavlović, Vladimir, Rakić, Vesna, "Overcoming phase separation in dual templating: A homogeneous hierarchical ZSM-5 zeolite with flower-like morphology, synthesis and in-depth acidity study" in Microporous and Mesoporous Materials, 329 (2021):111534,
https://doi.org/10.1016/j.micromeso.2021.111534 . .

TY  - JOUR
AU  - Radovanović, Mira
AU  - Hovjecki, Marina
AU  - Radulović, Ana
AU  - Rac, Vladislav
AU  - Miočinović, Jelena
AU  - Jovanović, Rade
AU  - Pudja, Predrag
PY  - 2021
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5874
AB  - The effects of coagulation temperature, CaCl2 concentrations, pH and heat treatment on the rennet coagulation time (RCT), setting time (ST), aggregation rate (AR) and gel firmness (GF) of buffalo milk were studied using dynamic small amplitude oscillatory rheology. The influence of heat treatments on protein profile and casein micelle size was analysed by PAGE electrophoresis and dynamic light scattering. Reducing pH of milk from 6.5 to 6.3 caused the largest decrease in RCT and ST, and the largest increase in AR and GF (P < 0.01) compared with the influence of other examined factors. Decreasing the coagulation temperature from 31 to 27 °C had a minor effect on the rennet coagulation parameters. The amount of CaCl2 added to milk treated with mild heat treatment had a negligible effect on the rennet coagulation parameters. High heat treatment induced an increase in casein micelle diameter and substantially delayed the process of milk coagulation.
PB  - Elsevier Ltd
T2  - International Dairy Journal
T1  - Rheology of buffalo milk rennet coagulation and gels affected by coagulation temperature, CaCl2, pH and milk heat treatment
SP  - 105122
VL  - 121
DO  - 10.1016/j.idairyj.2021.105122
ER  - 

@article{
author = "Radovanović, Mira and Hovjecki, Marina and Radulović, Ana and Rac, Vladislav and Miočinović, Jelena and Jovanović, Rade and Pudja, Predrag",
year = "2021",
abstract = "The effects of coagulation temperature, CaCl2 concentrations, pH and heat treatment on the rennet coagulation time (RCT), setting time (ST), aggregation rate (AR) and gel firmness (GF) of buffalo milk were studied using dynamic small amplitude oscillatory rheology. The influence of heat treatments on protein profile and casein micelle size was analysed by PAGE electrophoresis and dynamic light scattering. Reducing pH of milk from 6.5 to 6.3 caused the largest decrease in RCT and ST, and the largest increase in AR and GF (P < 0.01) compared with the influence of other examined factors. Decreasing the coagulation temperature from 31 to 27 °C had a minor effect on the rennet coagulation parameters. The amount of CaCl2 added to milk treated with mild heat treatment had a negligible effect on the rennet coagulation parameters. High heat treatment induced an increase in casein micelle diameter and substantially delayed the process of milk coagulation.",
publisher = "Elsevier Ltd",
journal = "International Dairy Journal",
title = "Rheology of buffalo milk rennet coagulation and gels affected by coagulation temperature, CaCl2, pH and milk heat treatment",
pages = "105122",
volume = "121",
doi = "10.1016/j.idairyj.2021.105122"
}

Radovanović, M., Hovjecki, M., Radulović, A., Rac, V., Miočinović, J., Jovanović, R.,& Pudja, P.. (2021). Rheology of buffalo milk rennet coagulation and gels affected by coagulation temperature, CaCl2, pH and milk heat treatment. in International Dairy Journal
Elsevier Ltd., 121, 105122.
https://doi.org/10.1016/j.idairyj.2021.105122

Radovanović M, Hovjecki M, Radulović A, Rac V, Miočinović J, Jovanović R, Pudja P. Rheology of buffalo milk rennet coagulation and gels affected by coagulation temperature, CaCl2, pH and milk heat treatment. in International Dairy Journal. 2021;121:105122.
doi:10.1016/j.idairyj.2021.105122 .

Radovanović, Mira, Hovjecki, Marina, Radulović, Ana, Rac, Vladislav, Miočinović, Jelena, Jovanović, Rade, Pudja, Predrag, "Rheology of buffalo milk rennet coagulation and gels affected by coagulation temperature, CaCl2, pH and milk heat treatment" in International Dairy Journal, 121 (2021):105122,
https://doi.org/10.1016/j.idairyj.2021.105122 . .

TY  - JOUR
AU  - Purić, Milos
AU  - Rabrenović, Biljana
AU  - Rac, Vladislav
AU  - Pezo, Lato
AU  - Tomašević, Igor
AU  - Demin, Mirjana
PY  - 2020
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5276
AB  - This paper examined the effect of adding the ground defatted apple seed cakes (DASC) to chemical characteristics, colour, antioxidant potential, the textural and sensory quality of wheat bread. Adding 5% and 20% DASC of three varieties of apples (Golden Delicious, Idared and Sumatovka) to the total amount of wheat flour significantly increased insoluble fibre and protein content in the tested bread samples, primarily in the bread sample supplemented with 20% DASC of Sumatovka (7.21% and 15.99%, respectively). The highest total polyphenol content and the best antioxidant potential was found in the samples supplemented with 20% DASC. In comparison, the best sensory characteristics and textural properties were found in the samples supplemented with 5% DASC. The bread samples supplemented with 20% Sumatovka had the highest content of insoluble fibre, proteins, total polyphenol content, antioxidant potential and the lowest change in freshness, while the bread samples supplemented with 5% Golden Delicious had the highest content of soluble fibre, brightness and chewiness. Finally, we obtained enriched bread with proteins and fibre, low energy value, high antioxidant potential, good texture and very acceptable sensory characteristics. The variety of apples and the share of DASC affected the tested characteristics.
PB  - Elsevier, Amsterdam
T2  - LWT-Food Science and Technology
T1  - Application of defatted apple seed cakes as a by-product for the enrichment of wheat bread
VL  - 130
DO  - 10.1016/j.lwt.2020.109391
ER  - 

@article{
author = "Purić, Milos and Rabrenović, Biljana and Rac, Vladislav and Pezo, Lato and Tomašević, Igor and Demin, Mirjana",
year = "2020",
abstract = "This paper examined the effect of adding the ground defatted apple seed cakes (DASC) to chemical characteristics, colour, antioxidant potential, the textural and sensory quality of wheat bread. Adding 5% and 20% DASC of three varieties of apples (Golden Delicious, Idared and Sumatovka) to the total amount of wheat flour significantly increased insoluble fibre and protein content in the tested bread samples, primarily in the bread sample supplemented with 20% DASC of Sumatovka (7.21% and 15.99%, respectively). The highest total polyphenol content and the best antioxidant potential was found in the samples supplemented with 20% DASC. In comparison, the best sensory characteristics and textural properties were found in the samples supplemented with 5% DASC. The bread samples supplemented with 20% Sumatovka had the highest content of insoluble fibre, proteins, total polyphenol content, antioxidant potential and the lowest change in freshness, while the bread samples supplemented with 5% Golden Delicious had the highest content of soluble fibre, brightness and chewiness. Finally, we obtained enriched bread with proteins and fibre, low energy value, high antioxidant potential, good texture and very acceptable sensory characteristics. The variety of apples and the share of DASC affected the tested characteristics.",
publisher = "Elsevier, Amsterdam",
journal = "LWT-Food Science and Technology",
title = "Application of defatted apple seed cakes as a by-product for the enrichment of wheat bread",
volume = "130",
doi = "10.1016/j.lwt.2020.109391"
}

Purić, M., Rabrenović, B., Rac, V., Pezo, L., Tomašević, I.,& Demin, M.. (2020). Application of defatted apple seed cakes as a by-product for the enrichment of wheat bread. in LWT-Food Science and Technology
Elsevier, Amsterdam., 130.
https://doi.org/10.1016/j.lwt.2020.109391

Purić M, Rabrenović B, Rac V, Pezo L, Tomašević I, Demin M. Application of defatted apple seed cakes as a by-product for the enrichment of wheat bread. in LWT-Food Science and Technology. 2020;130.
doi:10.1016/j.lwt.2020.109391 .

Purić, Milos, Rabrenović, Biljana, Rac, Vladislav, Pezo, Lato, Tomašević, Igor, Demin, Mirjana, "Application of defatted apple seed cakes as a by-product for the enrichment of wheat bread" in LWT-Food Science and Technology, 130 (2020),
https://doi.org/10.1016/j.lwt.2020.109391 . .

TY  - JOUR
AU  - Wan, Yuyi
AU  - Yang, Guangpeng
AU  - Xiang, Jinyao
AU  - Shen, Xiaoqiang
AU  - Yang, Dafei
AU  - Chen, Yanrong
AU  - Rac, Vladislav
AU  - Rakić, Vesna
AU  - Du, Xuesen
PY  - 2020
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5328
AB  - Cu-SAPO-34 catalysts with varied Cu loadings were synthesized through ion exchange to study the influence of water on the NH3-SCR reaction. The catalytic activities were evaluated by selective catalytic reduction of NO under a reactant feed in the presence/absence of water. Transient experiments were designed to study the response of NO conversion to the presence of water. H-2-TPR and DFT calculations were performed to study the reducibility of Cu species. NH3-TPD and XPS were conducted to reveal the migration of Cu species. The results show that water could remarkably improve NO reduction activities and the promoting effect is more significant on the catalyst with low Cu loading. Both transient and permanent influences were found in this promoting phenomenon. For the transient influence, water has been proved to accelerate the re-oxidation half-cycle. Moreover, water can enhance the promoting effect of the SCR feed on the migration of Cu species. These unanchored Cu ions migrate to defect sites to form active sites, which lead to a permanent influence of water.
PB  - Royal Soc Chemistry, Cambridge
T2  - Dalton Transactions
T1  - Promoting effects of water on the NH3-SCR reaction over Cu-SAPO-34 catalysts: transient and permanent influences on Cu species
EP  - 773
IS  - 3
SP  - 764
VL  - 49
DO  - 10.1039/c9dt03848e
ER  - 

@article{
author = "Wan, Yuyi and Yang, Guangpeng and Xiang, Jinyao and Shen, Xiaoqiang and Yang, Dafei and Chen, Yanrong and Rac, Vladislav and Rakić, Vesna and Du, Xuesen",
year = "2020",
abstract = "Cu-SAPO-34 catalysts with varied Cu loadings were synthesized through ion exchange to study the influence of water on the NH3-SCR reaction. The catalytic activities were evaluated by selective catalytic reduction of NO under a reactant feed in the presence/absence of water. Transient experiments were designed to study the response of NO conversion to the presence of water. H-2-TPR and DFT calculations were performed to study the reducibility of Cu species. NH3-TPD and XPS were conducted to reveal the migration of Cu species. The results show that water could remarkably improve NO reduction activities and the promoting effect is more significant on the catalyst with low Cu loading. Both transient and permanent influences were found in this promoting phenomenon. For the transient influence, water has been proved to accelerate the re-oxidation half-cycle. Moreover, water can enhance the promoting effect of the SCR feed on the migration of Cu species. These unanchored Cu ions migrate to defect sites to form active sites, which lead to a permanent influence of water.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "Dalton Transactions",
title = "Promoting effects of water on the NH3-SCR reaction over Cu-SAPO-34 catalysts: transient and permanent influences on Cu species",
pages = "773-764",
number = "3",
volume = "49",
doi = "10.1039/c9dt03848e"
}

Wan, Y., Yang, G., Xiang, J., Shen, X., Yang, D., Chen, Y., Rac, V., Rakić, V.,& Du, X.. (2020). Promoting effects of water on the NH3-SCR reaction over Cu-SAPO-34 catalysts: transient and permanent influences on Cu species. in Dalton Transactions
Royal Soc Chemistry, Cambridge., 49(3), 764-773.
https://doi.org/10.1039/c9dt03848e

Wan Y, Yang G, Xiang J, Shen X, Yang D, Chen Y, Rac V, Rakić V, Du X. Promoting effects of water on the NH3-SCR reaction over Cu-SAPO-34 catalysts: transient and permanent influences on Cu species. in Dalton Transactions. 2020;49(3):764-773.
doi:10.1039/c9dt03848e .

Wan, Yuyi, Yang, Guangpeng, Xiang, Jinyao, Shen, Xiaoqiang, Yang, Dafei, Chen, Yanrong, Rac, Vladislav, Rakić, Vesna, Du, Xuesen, "Promoting effects of water on the NH3-SCR reaction over Cu-SAPO-34 catalysts: transient and permanent influences on Cu species" in Dalton Transactions, 49, no. 3 (2020):764-773,
https://doi.org/10.1039/c9dt03848e . .

TY  - JOUR
AU  - Nie, Hua
AU  - Li, Wei
AU  - Wu, Qirong
AU  - Rac, Vladislav
AU  - Rakić, Vesna
AU  - Du, Xuesen
PY  - 2020
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5343
AB  - Poisoning effects by alkali metal chlorides is one of the major reasons for the deactivation of SCR catalyst in biomass-fired plants. In this study, the influence of KCl on two vanadium-based catalysts with different promoters, V2O5-WO3/TiO2 and V2O5-Ce(SO4)(2)/TiO2, was investigated. The catalytic activity of the fresh V2O5-WO3/TiO2 was higher than that of V2O5-Ce(SO4)(2)/TiO2 at low temperatures. V2O5-Ce(SO4)(2)/TiO2 performed better than V2O5-WO3/TiO2 when KCl was deposited on the catalyst surface. Both poisoned catalysts were efficiently regenerated by SO2 treatment. The characterization results show that the reducibility and acidity of the catalysts were weakened by KCl deposition but regenerated by SO2.
PB  - MDPI, BASEL
T2  - Catalysts
T1  - The Poisoning of V2O5-WO3/TiO2 and V2O5-Ce(SO4)(2)/TiO2 SCR Catalysts by KCl and The Partial Regeneration by SO2
IS  - 2
VL  - 10
DO  - 10.3390/catal10020207
ER  - 

@article{
author = "Nie, Hua and Li, Wei and Wu, Qirong and Rac, Vladislav and Rakić, Vesna and Du, Xuesen",
year = "2020",
abstract = "Poisoning effects by alkali metal chlorides is one of the major reasons for the deactivation of SCR catalyst in biomass-fired plants. In this study, the influence of KCl on two vanadium-based catalysts with different promoters, V2O5-WO3/TiO2 and V2O5-Ce(SO4)(2)/TiO2, was investigated. The catalytic activity of the fresh V2O5-WO3/TiO2 was higher than that of V2O5-Ce(SO4)(2)/TiO2 at low temperatures. V2O5-Ce(SO4)(2)/TiO2 performed better than V2O5-WO3/TiO2 when KCl was deposited on the catalyst surface. Both poisoned catalysts were efficiently regenerated by SO2 treatment. The characterization results show that the reducibility and acidity of the catalysts were weakened by KCl deposition but regenerated by SO2.",
publisher = "MDPI, BASEL",
journal = "Catalysts",
title = "The Poisoning of V2O5-WO3/TiO2 and V2O5-Ce(SO4)(2)/TiO2 SCR Catalysts by KCl and The Partial Regeneration by SO2",
number = "2",
volume = "10",
doi = "10.3390/catal10020207"
}

Nie, H., Li, W., Wu, Q., Rac, V., Rakić, V.,& Du, X.. (2020). The Poisoning of V2O5-WO3/TiO2 and V2O5-Ce(SO4)(2)/TiO2 SCR Catalysts by KCl and The Partial Regeneration by SO2. in Catalysts
MDPI, BASEL., 10(2).
https://doi.org/10.3390/catal10020207

Nie H, Li W, Wu Q, Rac V, Rakić V, Du X. The Poisoning of V2O5-WO3/TiO2 and V2O5-Ce(SO4)(2)/TiO2 SCR Catalysts by KCl and The Partial Regeneration by SO2. in Catalysts. 2020;10(2).
doi:10.3390/catal10020207 .

Nie, Hua, Li, Wei, Wu, Qirong, Rac, Vladislav, Rakić, Vesna, Du, Xuesen, "The Poisoning of V2O5-WO3/TiO2 and V2O5-Ce(SO4)(2)/TiO2 SCR Catalysts by KCl and The Partial Regeneration by SO2" in Catalysts, 10, no. 2 (2020),
https://doi.org/10.3390/catal10020207 . .

TY  - JOUR
AU  - Yang, Guangpeng
AU  - Du, Xuesen
AU  - Ran, Jingyu
AU  - Wang, Xiangmin
AU  - Chen, Yanrong
AU  - Zhang, Li
AU  - Rac, Vladislav
AU  - Rakić, Vesna
AU  - Crittenden, John
PY  - 2020
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5346
AB  - SCR activity of Cu-SAPO-34 catalyst was reduced by alkali metal ions. The alkali metals ions (Li+, Na+ and K+) have shown irregular influences on Cu-SAPO-34. The order of poisoning strengths under 400 degrees C was found to be: Na+ > K+ Li+, which is not consistent with the basicities of their corresponding metals. Experimental results and calculations showed that the alkali metal ions readily replace H+ and Cu2+/Cu3+ ions. These exchanges result in the loss of Bronsted acid sites and migration of isolated Cu2+ ions in Cu-SAPO-34, which decrease the NH3-SCR activity. Both the basicity and ion diameter will affect the exchanging behavior of an alkali ion. Na+ and Li+ ions will influence both H+ and Cu2+/Cu+ ions but K+ ions only preferably replace the H+ We hypothesize that K+ cannot enter into a small ring (6-membered ring) to replace a Cu2+/Cu+ ion because of its large ion diameter. The displaced Cu2+/Cu+ ions will transfer to adjacent unbonded Al site to form a CuAlO2 species.
PB  - Elsevier, Amsterdam
T2  - Journal of Hazardous Materials
T1  - Irregular influence of alkali metals on Cu-SAPO-34 catalyst for selective catalytic reduction of NOx with ammonia
VL  - 387
DO  - 10.1016/j.jhazmat.2019.122007
ER  - 

@article{
author = "Yang, Guangpeng and Du, Xuesen and Ran, Jingyu and Wang, Xiangmin and Chen, Yanrong and Zhang, Li and Rac, Vladislav and Rakić, Vesna and Crittenden, John",
year = "2020",
abstract = "SCR activity of Cu-SAPO-34 catalyst was reduced by alkali metal ions. The alkali metals ions (Li+, Na+ and K+) have shown irregular influences on Cu-SAPO-34. The order of poisoning strengths under 400 degrees C was found to be: Na+ > K+ Li+, which is not consistent with the basicities of their corresponding metals. Experimental results and calculations showed that the alkali metal ions readily replace H+ and Cu2+/Cu3+ ions. These exchanges result in the loss of Bronsted acid sites and migration of isolated Cu2+ ions in Cu-SAPO-34, which decrease the NH3-SCR activity. Both the basicity and ion diameter will affect the exchanging behavior of an alkali ion. Na+ and Li+ ions will influence both H+ and Cu2+/Cu+ ions but K+ ions only preferably replace the H+ We hypothesize that K+ cannot enter into a small ring (6-membered ring) to replace a Cu2+/Cu+ ion because of its large ion diameter. The displaced Cu2+/Cu+ ions will transfer to adjacent unbonded Al site to form a CuAlO2 species.",
publisher = "Elsevier, Amsterdam",
journal = "Journal of Hazardous Materials",
title = "Irregular influence of alkali metals on Cu-SAPO-34 catalyst for selective catalytic reduction of NOx with ammonia",
volume = "387",
doi = "10.1016/j.jhazmat.2019.122007"
}

Yang, G., Du, X., Ran, J., Wang, X., Chen, Y., Zhang, L., Rac, V., Rakić, V.,& Crittenden, J.. (2020). Irregular influence of alkali metals on Cu-SAPO-34 catalyst for selective catalytic reduction of NOx with ammonia. in Journal of Hazardous Materials
Elsevier, Amsterdam., 387.
https://doi.org/10.1016/j.jhazmat.2019.122007

Yang G, Du X, Ran J, Wang X, Chen Y, Zhang L, Rac V, Rakić V, Crittenden J. Irregular influence of alkali metals on Cu-SAPO-34 catalyst for selective catalytic reduction of NOx with ammonia. in Journal of Hazardous Materials. 2020;387.
doi:10.1016/j.jhazmat.2019.122007 .

Yang, Guangpeng, Du, Xuesen, Ran, Jingyu, Wang, Xiangmin, Chen, Yanrong, Zhang, Li, Rac, Vladislav, Rakić, Vesna, Crittenden, John, "Irregular influence of alkali metals on Cu-SAPO-34 catalyst for selective catalytic reduction of NOx with ammonia" in Journal of Hazardous Materials, 387 (2020),
https://doi.org/10.1016/j.jhazmat.2019.122007 . .

TY  - JOUR
AU  - Rac, Vladislav
AU  - Rakić, Vesna
AU  - Stošić, Dušan
AU  - Pavlović, Vladimir
AU  - Bosnar, Sanja
AU  - Auroux, Aline
PY  - 2020
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5365
AB  - The possibility of removal of pharmaceutically active substances, atenolol, diclofenac sodium and salicylic acid, from water solutions using hierarchical form of zeolite ZSM-5 is investigated in this paper. Mesopore formation in ZSM-5 was achieved using alkaline treatment. Zeolitic samples were characterized by X-ray diffraction, low temperature nitrogen adsorption, solid-state 27A1 MAS NMR, point of zero charge determination and microcalorimetry - volumetry of ammonia adsorption. Adsorption isotherms of pharmaceutically active substances were obtained and liquid calorimetric experiments were used to evaluate the strength of interactions. The capacity for salicylic acid adsorption measured for the mesoporous sample did not significantly differ from the results obtained for the parent ZSM-5. However, in the case of atenolol and diclofenac sodium, mesoporous ZSM-5 exhibited increased adsorption capacities. Calorimetric data revealed higher heats of atenolol adsorption on mesoporous ZSM-5, compared to the parent. Based on similar acidity and surface charge determined for the two samples, our results show that geometry and dimensions of both zeolite pores and adsorbing molecules play a crucial role in the studied adsorption processes and that tailoring ZSM-5 porosity by desilication can be used to expand its applicability in depollution processes.
PB  - Elsevier, Amsterdam
T2  - Arabian Journal of Chemistry
T1  - Enhanced accessibility of active sites in hierarchical ZSM-5 zeolite for removal of pharmaceutically active substances: Adsorption and microcalorimetric study
EP  - 1954
IS  - 1
SP  - 1945
VL  - 13
DO  - 10.1016/j.arabjc.2018.02.012
ER  - 

@article{
author = "Rac, Vladislav and Rakić, Vesna and Stošić, Dušan and Pavlović, Vladimir and Bosnar, Sanja and Auroux, Aline",
year = "2020",
abstract = "The possibility of removal of pharmaceutically active substances, atenolol, diclofenac sodium and salicylic acid, from water solutions using hierarchical form of zeolite ZSM-5 is investigated in this paper. Mesopore formation in ZSM-5 was achieved using alkaline treatment. Zeolitic samples were characterized by X-ray diffraction, low temperature nitrogen adsorption, solid-state 27A1 MAS NMR, point of zero charge determination and microcalorimetry - volumetry of ammonia adsorption. Adsorption isotherms of pharmaceutically active substances were obtained and liquid calorimetric experiments were used to evaluate the strength of interactions. The capacity for salicylic acid adsorption measured for the mesoporous sample did not significantly differ from the results obtained for the parent ZSM-5. However, in the case of atenolol and diclofenac sodium, mesoporous ZSM-5 exhibited increased adsorption capacities. Calorimetric data revealed higher heats of atenolol adsorption on mesoporous ZSM-5, compared to the parent. Based on similar acidity and surface charge determined for the two samples, our results show that geometry and dimensions of both zeolite pores and adsorbing molecules play a crucial role in the studied adsorption processes and that tailoring ZSM-5 porosity by desilication can be used to expand its applicability in depollution processes.",
publisher = "Elsevier, Amsterdam",
journal = "Arabian Journal of Chemistry",
title = "Enhanced accessibility of active sites in hierarchical ZSM-5 zeolite for removal of pharmaceutically active substances: Adsorption and microcalorimetric study",
pages = "1954-1945",
number = "1",
volume = "13",
doi = "10.1016/j.arabjc.2018.02.012"
}

Rac, V., Rakić, V., Stošić, D., Pavlović, V., Bosnar, S.,& Auroux, A.. (2020). Enhanced accessibility of active sites in hierarchical ZSM-5 zeolite for removal of pharmaceutically active substances: Adsorption and microcalorimetric study. in Arabian Journal of Chemistry
Elsevier, Amsterdam., 13(1), 1945-1954.
https://doi.org/10.1016/j.arabjc.2018.02.012

Rac V, Rakić V, Stošić D, Pavlović V, Bosnar S, Auroux A. Enhanced accessibility of active sites in hierarchical ZSM-5 zeolite for removal of pharmaceutically active substances: Adsorption and microcalorimetric study. in Arabian Journal of Chemistry. 2020;13(1):1945-1954.
doi:10.1016/j.arabjc.2018.02.012 .

Rac, Vladislav, Rakić, Vesna, Stošić, Dušan, Pavlović, Vladimir, Bosnar, Sanja, Auroux, Aline, "Enhanced accessibility of active sites in hierarchical ZSM-5 zeolite for removal of pharmaceutically active substances: Adsorption and microcalorimetric study" in Arabian Journal of Chemistry, 13, no. 1 (2020):1945-1954,
https://doi.org/10.1016/j.arabjc.2018.02.012 . .

TY  - JOUR
AU  - Rac, Vladislav
AU  - Rakić, Vesna
PY  - 2020
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5475
AB  - The work presented in this paper was dedicated to the investigation of the influence of the alkaline treatment parameters on the formation of mesopores in zeolite ZSM-5, SiO2/Al2O3=50. Concentration of NaOH, temperature and tretment duration were varied. The obtained samples were characterized using low temperature nitrogen adsorption, X ray diffraction and solid state 27Al MAS NMR spectroscopy. Formation of mesopores was found to be a process sensitive to changes of treatment parameters, which can lead to creation of hierarchical zeolites with different mesopore surfaces and distributions of pore size diameters. Also, treatment duration was found to have a lesser influence on the process, compared to other two investigated parameters. Mesopore introduction resulted in partial crystallinity reduction, in all modified samples. No significant buildup of extraframework Al was detected.
AB  - U ovom radu prikazani su rezultati ispitivanja uticaja parametara alkalnog tretmana na formiranje mezopora u zeolitu ZSM-5, SiO2/Al2O3=50. Varirane su koncentracija natrijum hidroksida, temperatura i trajanje tratmana. Uzorci dobijenih hijerarhijskih formi zeolita ZSM-5 okarakterisani su metodama niskotemperaturske adsorpcije azota, rendgenskom difrakcionom analizom i 27Al MAS NMR sprektroskopijom čvrstog stanja. Utvrđeno je da je formiranje mezopora u zeolitu ZSM-5 proces osetljiv na promene ispitivanih parametara i da je moguće kreiranje hijerarhijskih ZSM-5 zeolita sa različitim veličinama mezoporoznih površina i raspodelama dijametara pora. Takođe, utvrđeno je da koncentracija NaOH i temperatura tretmana imaju značajniji uticaj na formiranje mezoporoznosti od trajanja tretmana. Dobijeni rezultati pokazuju da je formiranje mezopora ovim postupkom praćeno delimičnim smanjenjem kristaliniteta uzoraka zeolita. Na osnovu 27Al MAS NMR sprektroskopije zaključeno je da tretman nije doprineo stvaranju značajnih količina vanmrežnog aluminijuma.
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika
T1  - Mesopore creation in zeolite ZSM-5: Influence of NaOH concentration, temperature and treatment duration
T1  - Kreiranje mezopora u zeolitu ZSM-5 alkalnim tretmanom - uticaj koncentracije NaOH, temperature i trajanja tretmana
EP  - 14
IS  - 1
SP  - 9
VL  - 75
DO  - 10.5937/tehnika2001009R
ER  - 

@article{
author = "Rac, Vladislav and Rakić, Vesna",
year = "2020",
abstract = "The work presented in this paper was dedicated to the investigation of the influence of the alkaline treatment parameters on the formation of mesopores in zeolite ZSM-5, SiO2/Al2O3=50. Concentration of NaOH, temperature and tretment duration were varied. The obtained samples were characterized using low temperature nitrogen adsorption, X ray diffraction and solid state 27Al MAS NMR spectroscopy. Formation of mesopores was found to be a process sensitive to changes of treatment parameters, which can lead to creation of hierarchical zeolites with different mesopore surfaces and distributions of pore size diameters. Also, treatment duration was found to have a lesser influence on the process, compared to other two investigated parameters. Mesopore introduction resulted in partial crystallinity reduction, in all modified samples. No significant buildup of extraframework Al was detected., U ovom radu prikazani su rezultati ispitivanja uticaja parametara alkalnog tretmana na formiranje mezopora u zeolitu ZSM-5, SiO2/Al2O3=50. Varirane su koncentracija natrijum hidroksida, temperatura i trajanje tratmana. Uzorci dobijenih hijerarhijskih formi zeolita ZSM-5 okarakterisani su metodama niskotemperaturske adsorpcije azota, rendgenskom difrakcionom analizom i 27Al MAS NMR sprektroskopijom čvrstog stanja. Utvrđeno je da je formiranje mezopora u zeolitu ZSM-5 proces osetljiv na promene ispitivanih parametara i da je moguće kreiranje hijerarhijskih ZSM-5 zeolita sa različitim veličinama mezoporoznih površina i raspodelama dijametara pora. Takođe, utvrđeno je da koncentracija NaOH i temperatura tretmana imaju značajniji uticaj na formiranje mezoporoznosti od trajanja tretmana. Dobijeni rezultati pokazuju da je formiranje mezopora ovim postupkom praćeno delimičnim smanjenjem kristaliniteta uzoraka zeolita. Na osnovu 27Al MAS NMR sprektroskopije zaključeno je da tretman nije doprineo stvaranju značajnih količina vanmrežnog aluminijuma.",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika",
title = "Mesopore creation in zeolite ZSM-5: Influence of NaOH concentration, temperature and treatment duration, Kreiranje mezopora u zeolitu ZSM-5 alkalnim tretmanom - uticaj koncentracije NaOH, temperature i trajanja tretmana",
pages = "14-9",
number = "1",
volume = "75",
doi = "10.5937/tehnika2001009R"
}

Rac, V.,& Rakić, V.. (2020). Mesopore creation in zeolite ZSM-5: Influence of NaOH concentration, temperature and treatment duration. in Tehnika
Savez inženjera i tehničara Srbije, Beograd., 75(1), 9-14.
https://doi.org/10.5937/tehnika2001009R

Rac V, Rakić V. Mesopore creation in zeolite ZSM-5: Influence of NaOH concentration, temperature and treatment duration. in Tehnika. 2020;75(1):9-14.
doi:10.5937/tehnika2001009R .

Rac, Vladislav, Rakić, Vesna, "Mesopore creation in zeolite ZSM-5: Influence of NaOH concentration, temperature and treatment duration" in Tehnika, 75, no. 1 (2020):9-14,
https://doi.org/10.5937/tehnika2001009R . .

TY  - JOUR
AU  - Hovjecki, Marina
AU  - Miloradović, Zorana
AU  - Rac, Vladislav
AU  - Pudja, Predrag
AU  - Miočinović, Jelena
PY  - 2020
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5404
AB  - Acid gels and yoghurts were made from goat milk that was heated at 72 degrees C/30 s, 85 degrees C/5 min, and 95 degrees C/5 min, followed by acidification with starter culture at 43C until pH 4.6. The rheological and textural properties of acid gels and yoghurts were analyzed using dynamic low amplitude oscillatory rheology and back extrusion texture analysis, respectively. The effect of goat milk heat treatment on the mean casein micelle diameter and protein profile was also determined by dynamic light scattering and SDS PAGE electrophoresis, respectively. The shortest gelation and fermentation time was recorded for yoghurt prepared from milk heated at 85 degrees C/5 min. Also, the pH of gelation, the storage moduli (G ') and yield stress were higher for this yoghurt, compared with the other two. Textural properties of goat milk yoghurts such as firmness and consistency were strongly affected by milk heat treatment, and the highest values were recorded for yoghurt produced from milk preheated at 85 degrees C/5 min, as well. The largest casein micelles were measured after 85 degrees C/5 min treatment and their size decreased at higher temperature, despite higher denaturation of whey proteins at the most intense heat regime, indicating the structure changes that influence on the acid gelation.
PB  - Wiley, Hoboken
T2  - Journal of Texture Studies
T1  - Influence of heat treatment of goat milk on casein micelle size, rheological and textural properties of acid gels and set type yoghurts
EP  - 687
IS  - 4
SP  - 680
VL  - 51
DO  - 10.1111/jtxs.12524
ER  - 

@article{
author = "Hovjecki, Marina and Miloradović, Zorana and Rac, Vladislav and Pudja, Predrag and Miočinović, Jelena",
year = "2020",
abstract = "Acid gels and yoghurts were made from goat milk that was heated at 72 degrees C/30 s, 85 degrees C/5 min, and 95 degrees C/5 min, followed by acidification with starter culture at 43C until pH 4.6. The rheological and textural properties of acid gels and yoghurts were analyzed using dynamic low amplitude oscillatory rheology and back extrusion texture analysis, respectively. The effect of goat milk heat treatment on the mean casein micelle diameter and protein profile was also determined by dynamic light scattering and SDS PAGE electrophoresis, respectively. The shortest gelation and fermentation time was recorded for yoghurt prepared from milk heated at 85 degrees C/5 min. Also, the pH of gelation, the storage moduli (G ') and yield stress were higher for this yoghurt, compared with the other two. Textural properties of goat milk yoghurts such as firmness and consistency were strongly affected by milk heat treatment, and the highest values were recorded for yoghurt produced from milk preheated at 85 degrees C/5 min, as well. The largest casein micelles were measured after 85 degrees C/5 min treatment and their size decreased at higher temperature, despite higher denaturation of whey proteins at the most intense heat regime, indicating the structure changes that influence on the acid gelation.",
publisher = "Wiley, Hoboken",
journal = "Journal of Texture Studies",
title = "Influence of heat treatment of goat milk on casein micelle size, rheological and textural properties of acid gels and set type yoghurts",
pages = "687-680",
number = "4",
volume = "51",
doi = "10.1111/jtxs.12524"
}

Hovjecki, M., Miloradović, Z., Rac, V., Pudja, P.,& Miočinović, J.. (2020). Influence of heat treatment of goat milk on casein micelle size, rheological and textural properties of acid gels and set type yoghurts. in Journal of Texture Studies
Wiley, Hoboken., 51(4), 680-687.
https://doi.org/10.1111/jtxs.12524

Hovjecki M, Miloradović Z, Rac V, Pudja P, Miočinović J. Influence of heat treatment of goat milk on casein micelle size, rheological and textural properties of acid gels and set type yoghurts. in Journal of Texture Studies. 2020;51(4):680-687.
doi:10.1111/jtxs.12524 .

Hovjecki, Marina, Miloradović, Zorana, Rac, Vladislav, Pudja, Predrag, Miočinović, Jelena, "Influence of heat treatment of goat milk on casein micelle size, rheological and textural properties of acid gels and set type yoghurts" in Journal of Texture Studies, 51, no. 4 (2020):680-687,
https://doi.org/10.1111/jtxs.12524 . .

TY  - JOUR
AU  - Rajić, Vladimir
AU  - Stojković-Simatović, Ivana
AU  - Veselinović, Ljiljana
AU  - Belosević-Cavor, Jelena
AU  - Novaković, Mirjana
AU  - Popović, Maja
AU  - Skapin, Sreco Davor
AU  - Mojović, Milos
AU  - Stojadinović, Stevan
AU  - Rac, Vladislav
AU  - Janković-Castvan, Ivona
AU  - Marković, Smilja
PY  - 2020
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5324
AB  - Eco-friendly and rapid microwave processing of a precipitate was used to produce Fe-doped zinc oxide (Zn1-xFexO,x= 0, 0.05, 0.1, 0.15 and 0.20; ZnO:Fe) nanoparticles, which were tested as catalysts toward the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in a moderately alkaline solution. The phase composition, crystal structure, morphology, textural properties, surface chemistry, optical properties and band structure were examined to comprehend the influence of Zn(2+)partial substitution with Fe(3+)on the catalytic activity of ZnO:Fe. Linear sweep voltammetry showed an improved catalytic activity of ZnO:5Fe toward the ORR, compared to pure ZnO, while with increased amounts of the Fe-dopant the activity decreased. The improvement was suggested by a more positive onset potential (0.394 Vvs.RHE), current density (0.231 mA cm(-2)at 0.150 Vvs.RHE), and faster kinetics (Tafel slope,b= 248 mV dec(-1)), and it may be due to the synergistic effect of (1) a sufficient amount of surface oxygen vacancies, and (2) a certain amount of plate-like particles composed of crystallites with well developed (0001) and (0001x304;) facets. Quite the contrary, the OER study showed that the introduction of Fe(3+)ions into the ZnO crystal structure resulted in enhanced catalytic activity of all ZnO:Fe samples, compared to pure ZnO, probably due to the modified binding energy and an optimized band structure. With the maximal current density of 1.066 mA cm(-2)at 2.216 Vvs.RHE, an onset potential of 1.856 Vvs.RHE, and the smallest potential difference between the OER and ORR (Delta E= 1.58 V), ZnO:10Fe may be considered a promising bifunctional catalyst toward the OER/ORR in moderately alkaline solution. This study demonstrates that the electrocatalytic activity of ZnO:Fe strongly depends on the defect chemistry and consequently the band structure. Along with providing fundamental insight into the electrocatalytic activity of ZnO:Fe, the study also indicates an optimal stoichiometry for enhanced bifunctional activity toward the OER/ORR, compared to pure ZnO.
PB  - Royal Soc Chemistry, Cambridge
T2  - Physical Chemistry Chemical Physics
T1  - Bifunctional catalytic activity of Zn1-xFexO toward the OER/ORR: seeking an optimal stoichiometry
EP  - 22095
IS  - 38
SP  - 22078
VL  - 22
DO  - 10.1039/d0cp03377d
ER  - 

@article{
author = "Rajić, Vladimir and Stojković-Simatović, Ivana and Veselinović, Ljiljana and Belosević-Cavor, Jelena and Novaković, Mirjana and Popović, Maja and Skapin, Sreco Davor and Mojović, Milos and Stojadinović, Stevan and Rac, Vladislav and Janković-Castvan, Ivona and Marković, Smilja",
year = "2020",
abstract = "Eco-friendly and rapid microwave processing of a precipitate was used to produce Fe-doped zinc oxide (Zn1-xFexO,x= 0, 0.05, 0.1, 0.15 and 0.20; ZnO:Fe) nanoparticles, which were tested as catalysts toward the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in a moderately alkaline solution. The phase composition, crystal structure, morphology, textural properties, surface chemistry, optical properties and band structure were examined to comprehend the influence of Zn(2+)partial substitution with Fe(3+)on the catalytic activity of ZnO:Fe. Linear sweep voltammetry showed an improved catalytic activity of ZnO:5Fe toward the ORR, compared to pure ZnO, while with increased amounts of the Fe-dopant the activity decreased. The improvement was suggested by a more positive onset potential (0.394 Vvs.RHE), current density (0.231 mA cm(-2)at 0.150 Vvs.RHE), and faster kinetics (Tafel slope,b= 248 mV dec(-1)), and it may be due to the synergistic effect of (1) a sufficient amount of surface oxygen vacancies, and (2) a certain amount of plate-like particles composed of crystallites with well developed (0001) and (0001x304;) facets. Quite the contrary, the OER study showed that the introduction of Fe(3+)ions into the ZnO crystal structure resulted in enhanced catalytic activity of all ZnO:Fe samples, compared to pure ZnO, probably due to the modified binding energy and an optimized band structure. With the maximal current density of 1.066 mA cm(-2)at 2.216 Vvs.RHE, an onset potential of 1.856 Vvs.RHE, and the smallest potential difference between the OER and ORR (Delta E= 1.58 V), ZnO:10Fe may be considered a promising bifunctional catalyst toward the OER/ORR in moderately alkaline solution. This study demonstrates that the electrocatalytic activity of ZnO:Fe strongly depends on the defect chemistry and consequently the band structure. Along with providing fundamental insight into the electrocatalytic activity of ZnO:Fe, the study also indicates an optimal stoichiometry for enhanced bifunctional activity toward the OER/ORR, compared to pure ZnO.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "Physical Chemistry Chemical Physics",
title = "Bifunctional catalytic activity of Zn1-xFexO toward the OER/ORR: seeking an optimal stoichiometry",
pages = "22095-22078",
number = "38",
volume = "22",
doi = "10.1039/d0cp03377d"
}

Rajić, V., Stojković-Simatović, I., Veselinović, L., Belosević-Cavor, J., Novaković, M., Popović, M., Skapin, S. D., Mojović, M., Stojadinović, S., Rac, V., Janković-Castvan, I.,& Marković, S.. (2020). Bifunctional catalytic activity of Zn1-xFexO toward the OER/ORR: seeking an optimal stoichiometry. in Physical Chemistry Chemical Physics
Royal Soc Chemistry, Cambridge., 22(38), 22078-22095.
https://doi.org/10.1039/d0cp03377d

Rajić V, Stojković-Simatović I, Veselinović L, Belosević-Cavor J, Novaković M, Popović M, Skapin SD, Mojović M, Stojadinović S, Rac V, Janković-Castvan I, Marković S. Bifunctional catalytic activity of Zn1-xFexO toward the OER/ORR: seeking an optimal stoichiometry. in Physical Chemistry Chemical Physics. 2020;22(38):22078-22095.
doi:10.1039/d0cp03377d .

Rajić, Vladimir, Stojković-Simatović, Ivana, Veselinović, Ljiljana, Belosević-Cavor, Jelena, Novaković, Mirjana, Popović, Maja, Skapin, Sreco Davor, Mojović, Milos, Stojadinović, Stevan, Rac, Vladislav, Janković-Castvan, Ivona, Marković, Smilja, "Bifunctional catalytic activity of Zn1-xFexO toward the OER/ORR: seeking an optimal stoichiometry" in Physical Chemistry Chemical Physics, 22, no. 38 (2020):22078-22095,
https://doi.org/10.1039/d0cp03377d . .

TY  - JOUR
AU  - Marković, Smilja
AU  - Stojković-Simatović, Ivana
AU  - Ahmetović, Sanita
AU  - Veselinović, Ljiljana
AU  - Stojadinović, Stevan
AU  - Rac, Vladislav
AU  - Skapin, Sreco Davor
AU  - Bajuk-Bogdanović, Danica
AU  - Janković-Castvan, Ivona
AU  - Uskoković, Dragan
PY  - 2019
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5091
AB  - ZnO nanopowders were produced using microwave processing of a precipitate and applied as a photoanode for photoelectrochemical water splitting. Two different surfactants, cetyltrimethylammonium bromide (CTAB) as the cationic and Pluronic F127 as the non-ionic one, were employed to in situ adjust the surface-to-bulk defect ratio in the ZnO crystal structure and further to modify the photo(electro)catalytic activity of the ZnO photoanode. The crystal structure, morphological, textural, optical and photo(electro)catalytic properties of ZnO particles were studied in detail to explain the profound effects of the surfactants on the photoanode activity. The ZnO/CTAB photoanode displayed the highest photocurrent density of 27 mA g(-1), compared to ZnO (10.4 mA g(-1)) and ZnO/F127 photoanodes (20 mA g(-1)) at 1.5 V vs. SCE in 0.1 M Na2SO4 under visible illumination of 90 mW cm(-2). A significant shift of the overpotential toward lower values was also observed when photoanodes were illuminated. The highest shift of the overpotential, from 1.296 to 0.248 V vs. SCE, was recorded when the ZnO/CTAB photanode was illuminated. The ZnO/CTAB photoanode provides efficient charge transfer across the electrode/electrolyte interface, with a longer lifetime of photogenerated electron-hole pairs and reduced possibility of charge recombination. The photoconversion efficiency was improved from 1.4% for ZnO and 0.9% for ZnO/F127 to 4.2% for ZnO/CTAB at 0.510 mV. A simple procedure for the synthesis of ZnO particles with improved photo(electro)catalytic properties was established and it was found that even a small amount of CTAB used during processing of ZnO increases the surface-to-bulk defect ratio. Optimization of the surface-to-bulk defect ratio in ZnO materials enables increase of the absorption capacity for visible light, rendering of the recombination rate of the photogenerated pair, as well as increase of both the photocurrent density and photoconversion efficiency.
PB  - Royal Soc Chemistry, Cambridge
T2  - RSC Advances
T1  - Surfactant-assisted microwave processing of ZnO particles: a simple way for designing the surface-to-bulk defect ratio and improving photo(electro)catalytic properties
EP  - 17178
IS  - 30
SP  - 17165
VL  - 9
DO  - 10.1039/c9ra02553g
ER  - 

@article{
author = "Marković, Smilja and Stojković-Simatović, Ivana and Ahmetović, Sanita and Veselinović, Ljiljana and Stojadinović, Stevan and Rac, Vladislav and Skapin, Sreco Davor and Bajuk-Bogdanović, Danica and Janković-Castvan, Ivona and Uskoković, Dragan",
year = "2019",
abstract = "ZnO nanopowders were produced using microwave processing of a precipitate and applied as a photoanode for photoelectrochemical water splitting. Two different surfactants, cetyltrimethylammonium bromide (CTAB) as the cationic and Pluronic F127 as the non-ionic one, were employed to in situ adjust the surface-to-bulk defect ratio in the ZnO crystal structure and further to modify the photo(electro)catalytic activity of the ZnO photoanode. The crystal structure, morphological, textural, optical and photo(electro)catalytic properties of ZnO particles were studied in detail to explain the profound effects of the surfactants on the photoanode activity. The ZnO/CTAB photoanode displayed the highest photocurrent density of 27 mA g(-1), compared to ZnO (10.4 mA g(-1)) and ZnO/F127 photoanodes (20 mA g(-1)) at 1.5 V vs. SCE in 0.1 M Na2SO4 under visible illumination of 90 mW cm(-2). A significant shift of the overpotential toward lower values was also observed when photoanodes were illuminated. The highest shift of the overpotential, from 1.296 to 0.248 V vs. SCE, was recorded when the ZnO/CTAB photanode was illuminated. The ZnO/CTAB photoanode provides efficient charge transfer across the electrode/electrolyte interface, with a longer lifetime of photogenerated electron-hole pairs and reduced possibility of charge recombination. The photoconversion efficiency was improved from 1.4% for ZnO and 0.9% for ZnO/F127 to 4.2% for ZnO/CTAB at 0.510 mV. A simple procedure for the synthesis of ZnO particles with improved photo(electro)catalytic properties was established and it was found that even a small amount of CTAB used during processing of ZnO increases the surface-to-bulk defect ratio. Optimization of the surface-to-bulk defect ratio in ZnO materials enables increase of the absorption capacity for visible light, rendering of the recombination rate of the photogenerated pair, as well as increase of both the photocurrent density and photoconversion efficiency.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "RSC Advances",
title = "Surfactant-assisted microwave processing of ZnO particles: a simple way for designing the surface-to-bulk defect ratio and improving photo(electro)catalytic properties",
pages = "17178-17165",
number = "30",
volume = "9",
doi = "10.1039/c9ra02553g"
}

Marković, S., Stojković-Simatović, I., Ahmetović, S., Veselinović, L., Stojadinović, S., Rac, V., Skapin, S. D., Bajuk-Bogdanović, D., Janković-Castvan, I.,& Uskoković, D.. (2019). Surfactant-assisted microwave processing of ZnO particles: a simple way for designing the surface-to-bulk defect ratio and improving photo(electro)catalytic properties. in RSC Advances
Royal Soc Chemistry, Cambridge., 9(30), 17165-17178.
https://doi.org/10.1039/c9ra02553g

Marković S, Stojković-Simatović I, Ahmetović S, Veselinović L, Stojadinović S, Rac V, Skapin SD, Bajuk-Bogdanović D, Janković-Castvan I, Uskoković D. Surfactant-assisted microwave processing of ZnO particles: a simple way for designing the surface-to-bulk defect ratio and improving photo(electro)catalytic properties. in RSC Advances. 2019;9(30):17165-17178.
doi:10.1039/c9ra02553g .

Marković, Smilja, Stojković-Simatović, Ivana, Ahmetović, Sanita, Veselinović, Ljiljana, Stojadinović, Stevan, Rac, Vladislav, Skapin, Sreco Davor, Bajuk-Bogdanović, Danica, Janković-Castvan, Ivona, Uskoković, Dragan, "Surfactant-assisted microwave processing of ZnO particles: a simple way for designing the surface-to-bulk defect ratio and improving photo(electro)catalytic properties" in RSC Advances, 9, no. 30 (2019):17165-17178,
https://doi.org/10.1039/c9ra02553g . .

TY  - JOUR
AU  - Vu Tung Lam Tran
AU  - Gelin, Patrick
AU  - Ferronato, Corinne
AU  - Mascunan, Pascale
AU  - Rac, Vladislav
AU  - Chovelon, Jean-Marc
AU  - Postole, Georgeta
PY  - 2019
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5059
AB  - Commercial activated carbons (ACs) have been studied in dynamic adsorption of octamethylcyclotetrasiloxane (D4) in both dry and wet conditions. 1000 ppm (v/ v) D4 with N-2 as carrier gas and relative humidity (RH) up to 70% were used. Samples were characterized by physicochemical techniques such as N-2 and H2O adsorption/desorption at -196 and 20 degrees C, respectively, XPS, Boehm titration, chemical and elemental analysis, thermogravimetric measurements. No correlation between adsorption capacity in dry conditions and textural properties could be established. In wet conditions, the presence of hydrophilic sites preferentially adsorbing H2O strongly decreases the ability of ACs to adsorb D4. The regenerability by thermal treatment after D4 adsorption in dry conditions was also addressed and followed by gas chromatography and in situ DRIFTS. The D4 polymerization into polysiloxanolate/PDMS was found to proceed on ACs containing alkali metals (K, Na) as revealed by the observed release of their decomposition products during the thermodesorption treatment. This property is detrimental to the regenerability of the AC by blockage of its porosity. The eventual formation of polysiloxanalolate type species during the adsorption could also be responsible for limiting the D4 uptake by partial blockage of the AC porosity.
PB  - Elsevier Science Sa, Lausanne
T2  - Chemical Engineering Journal
T1  - Siloxane adsorption on activated carbons: Role of the surface chemistry on sorption properties in humid atmosphere and regenerability issues
EP  - 832
SP  - 821
VL  - 371
DO  - 10.1016/j.cej.2019.04.087
ER  - 

@article{
author = "Vu Tung Lam Tran and Gelin, Patrick and Ferronato, Corinne and Mascunan, Pascale and Rac, Vladislav and Chovelon, Jean-Marc and Postole, Georgeta",
year = "2019",
abstract = "Commercial activated carbons (ACs) have been studied in dynamic adsorption of octamethylcyclotetrasiloxane (D4) in both dry and wet conditions. 1000 ppm (v/ v) D4 with N-2 as carrier gas and relative humidity (RH) up to 70% were used. Samples were characterized by physicochemical techniques such as N-2 and H2O adsorption/desorption at -196 and 20 degrees C, respectively, XPS, Boehm titration, chemical and elemental analysis, thermogravimetric measurements. No correlation between adsorption capacity in dry conditions and textural properties could be established. In wet conditions, the presence of hydrophilic sites preferentially adsorbing H2O strongly decreases the ability of ACs to adsorb D4. The regenerability by thermal treatment after D4 adsorption in dry conditions was also addressed and followed by gas chromatography and in situ DRIFTS. The D4 polymerization into polysiloxanolate/PDMS was found to proceed on ACs containing alkali metals (K, Na) as revealed by the observed release of their decomposition products during the thermodesorption treatment. This property is detrimental to the regenerability of the AC by blockage of its porosity. The eventual formation of polysiloxanalolate type species during the adsorption could also be responsible for limiting the D4 uptake by partial blockage of the AC porosity.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Chemical Engineering Journal",
title = "Siloxane adsorption on activated carbons: Role of the surface chemistry on sorption properties in humid atmosphere and regenerability issues",
pages = "832-821",
volume = "371",
doi = "10.1016/j.cej.2019.04.087"
}

Vu Tung Lam Tran, Gelin, P., Ferronato, C., Mascunan, P., Rac, V., Chovelon, J.,& Postole, G.. (2019). Siloxane adsorption on activated carbons: Role of the surface chemistry on sorption properties in humid atmosphere and regenerability issues. in Chemical Engineering Journal
Elsevier Science Sa, Lausanne., 371, 821-832.
https://doi.org/10.1016/j.cej.2019.04.087

Vu Tung Lam Tran, Gelin P, Ferronato C, Mascunan P, Rac V, Chovelon J, Postole G. Siloxane adsorption on activated carbons: Role of the surface chemistry on sorption properties in humid atmosphere and regenerability issues. in Chemical Engineering Journal. 2019;371:821-832.
doi:10.1016/j.cej.2019.04.087 .

Vu Tung Lam Tran, Gelin, Patrick, Ferronato, Corinne, Mascunan, Pascale, Rac, Vladislav, Chovelon, Jean-Marc, Postole, Georgeta, "Siloxane adsorption on activated carbons: Role of the surface chemistry on sorption properties in humid atmosphere and regenerability issues" in Chemical Engineering Journal, 371 (2019):821-832,
https://doi.org/10.1016/j.cej.2019.04.087 . .

TY  - JOUR
AU  - Rac, Vladislav
AU  - Lević, Steva
AU  - Balanc, Bojana
AU  - Graells, Beatriz Olalde
AU  - Bijelić, Goran
PY  - 2019
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4932
AB  - The use of polyvinyl alcohol (PVA) cryogel as a model hydrogel for iontophoretic transdermal investigations is proposed. Due to the excellent combination of its properties, it could be used for evaluating iontophoretic transdermal delivery of variety of drugs, regardless of pK(a), pH or presence of auxiliary ions. Applicability of PVA Cryogel for drug delivery purposes was compared to those of polyacrylic acid/polyvinyl alcohol (PAA/PVA) and polyacrylic acid/polyvinylpyrrolidone (PAA/PVP) adhesive interpenetrating networks. Swelling properties of PVA Cryogel were shown to be almost independent on pH and NaCl concentration, while swelling of PAA-based gels was significantly affected. Addition of PVA and PVP to PAA decreased swelling degrees and increased adhesivity and compression moduli. Iontophoretic experiments were performed using a donor gel/skin/receptor gel configuration; current density and delivery duration were varied. Dexamethasone sodium phosphate was used as model drug molecule. PVA Cryogel was used for investigating the influence of NaCl concentration, which can alter the amount of current carried by the drug ions and, therefore, the delivery rate. By using PVA Cryogel it was possible to easily determine the amount of drug permeated through the skin into the receptor gel, the amount retained by the skin and the amount remained in the donor hydrogel. Decreasing NaCl concentration in PVA Cryogel resulted in higher total amounts of drug delivered and significantly enhanced drug permeation through the lower layers of the skin into the receptor hydrogel.
PB  - Elsevier, Amsterdam
T2  - Colloids and Surfaces B-Biointerfaces
T1  - PVA Cryogel as model hydrogel for iontophoretic transdermal drug delivery investigations. Comparison with PAA/PVA and PAA/PVP interpenetrating networks
EP  - 448
SP  - 441
VL  - 180
DO  - 10.1016/j.colsurfb.2019.05.017
ER  - 

@article{
author = "Rac, Vladislav and Lević, Steva and Balanc, Bojana and Graells, Beatriz Olalde and Bijelić, Goran",
year = "2019",
abstract = "The use of polyvinyl alcohol (PVA) cryogel as a model hydrogel for iontophoretic transdermal investigations is proposed. Due to the excellent combination of its properties, it could be used for evaluating iontophoretic transdermal delivery of variety of drugs, regardless of pK(a), pH or presence of auxiliary ions. Applicability of PVA Cryogel for drug delivery purposes was compared to those of polyacrylic acid/polyvinyl alcohol (PAA/PVA) and polyacrylic acid/polyvinylpyrrolidone (PAA/PVP) adhesive interpenetrating networks. Swelling properties of PVA Cryogel were shown to be almost independent on pH and NaCl concentration, while swelling of PAA-based gels was significantly affected. Addition of PVA and PVP to PAA decreased swelling degrees and increased adhesivity and compression moduli. Iontophoretic experiments were performed using a donor gel/skin/receptor gel configuration; current density and delivery duration were varied. Dexamethasone sodium phosphate was used as model drug molecule. PVA Cryogel was used for investigating the influence of NaCl concentration, which can alter the amount of current carried by the drug ions and, therefore, the delivery rate. By using PVA Cryogel it was possible to easily determine the amount of drug permeated through the skin into the receptor gel, the amount retained by the skin and the amount remained in the donor hydrogel. Decreasing NaCl concentration in PVA Cryogel resulted in higher total amounts of drug delivered and significantly enhanced drug permeation through the lower layers of the skin into the receptor hydrogel.",
publisher = "Elsevier, Amsterdam",
journal = "Colloids and Surfaces B-Biointerfaces",
title = "PVA Cryogel as model hydrogel for iontophoretic transdermal drug delivery investigations. Comparison with PAA/PVA and PAA/PVP interpenetrating networks",
pages = "448-441",
volume = "180",
doi = "10.1016/j.colsurfb.2019.05.017"
}

Rac, V., Lević, S., Balanc, B., Graells, B. O.,& Bijelić, G.. (2019). PVA Cryogel as model hydrogel for iontophoretic transdermal drug delivery investigations. Comparison with PAA/PVA and PAA/PVP interpenetrating networks. in Colloids and Surfaces B-Biointerfaces
Elsevier, Amsterdam., 180, 441-448.
https://doi.org/10.1016/j.colsurfb.2019.05.017

Rac V, Lević S, Balanc B, Graells BO, Bijelić G. PVA Cryogel as model hydrogel for iontophoretic transdermal drug delivery investigations. Comparison with PAA/PVA and PAA/PVP interpenetrating networks. in Colloids and Surfaces B-Biointerfaces. 2019;180:441-448.
doi:10.1016/j.colsurfb.2019.05.017 .

Rac, Vladislav, Lević, Steva, Balanc, Bojana, Graells, Beatriz Olalde, Bijelić, Goran, "PVA Cryogel as model hydrogel for iontophoretic transdermal drug delivery investigations. Comparison with PAA/PVA and PAA/PVP interpenetrating networks" in Colloids and Surfaces B-Biointerfaces, 180 (2019):441-448,
https://doi.org/10.1016/j.colsurfb.2019.05.017 . .

TY  - JOUR
AU  - Poleksić, Dajana T.
AU  - Pavlićević, Milica Ž.
AU  - Raković-Simić, Jelena M.
AU  - Rac, Vladislav
AU  - Vučelić-Radović, Biljana
AU  - Rakić, Vesna
PY  - 2018
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4777
AB  - Two different ways of extracting antioxidative compounds (including soluble polyphenols) from rusks made from wheat flour with added millet (Panicum miliaceum L.) were compared, i.e., solvent extraction and in vitro digestion. Wheat flour was replaced by millet flour in amounts of 10, 20 or 30 wt. % (per dry mass). Solvent extraction was realized using a mixture of ethanol and water in different percentages, with or without the addition of formic acid. The total content of phenolic compounds (TPC) was determined using Folin-Ciocalteu reagent, while the antioxidative capacity was measured by the DPPH (2,2-diphenyl-1-picrylhydrazyl) assay. The efficiency of solvent extraction was enhanced by the addition of formic acid. The addition of millet flour in amounts up to 20 % enhanced the antioxidative properties. It was shown that in vitro digestion was more efficient in the extraction of antioxidative compounds, in comparison with solvent extraction.
PB  - Srpsko hemijsko društvo, Beograd
T2  - JOURNAL OF THE SERBIAN CHEMICAL SOCIETY
T1  - The extraction of antioxidative compounds from rusks enriched with millet flour (Panicum miliaceum L.)
EP  - 732
IS  - 6
SP  - 723
VL  - 83
DO  - 10.2298/JSC171229028P
ER  - 

@article{
author = "Poleksić, Dajana T. and Pavlićević, Milica Ž. and Raković-Simić, Jelena M. and Rac, Vladislav and Vučelić-Radović, Biljana and Rakić, Vesna",
year = "2018",
abstract = "Two different ways of extracting antioxidative compounds (including soluble polyphenols) from rusks made from wheat flour with added millet (Panicum miliaceum L.) were compared, i.e., solvent extraction and in vitro digestion. Wheat flour was replaced by millet flour in amounts of 10, 20 or 30 wt. % (per dry mass). Solvent extraction was realized using a mixture of ethanol and water in different percentages, with or without the addition of formic acid. The total content of phenolic compounds (TPC) was determined using Folin-Ciocalteu reagent, while the antioxidative capacity was measured by the DPPH (2,2-diphenyl-1-picrylhydrazyl) assay. The efficiency of solvent extraction was enhanced by the addition of formic acid. The addition of millet flour in amounts up to 20 % enhanced the antioxidative properties. It was shown that in vitro digestion was more efficient in the extraction of antioxidative compounds, in comparison with solvent extraction.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "JOURNAL OF THE SERBIAN CHEMICAL SOCIETY",
title = "The extraction of antioxidative compounds from rusks enriched with millet flour (Panicum miliaceum L.)",
pages = "732-723",
number = "6",
volume = "83",
doi = "10.2298/JSC171229028P"
}

Poleksić, D. T., Pavlićević, M. Ž., Raković-Simić, J. M., Rac, V., Vučelić-Radović, B.,& Rakić, V.. (2018). The extraction of antioxidative compounds from rusks enriched with millet flour (Panicum miliaceum L.). in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY
Srpsko hemijsko društvo, Beograd., 83(6), 723-732.
https://doi.org/10.2298/JSC171229028P

Poleksić DT, Pavlićević MŽ, Raković-Simić JM, Rac V, Vučelić-Radović B, Rakić V. The extraction of antioxidative compounds from rusks enriched with millet flour (Panicum miliaceum L.). in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY. 2018;83(6):723-732.
doi:10.2298/JSC171229028P .

Poleksić, Dajana T., Pavlićević, Milica Ž., Raković-Simić, Jelena M., Rac, Vladislav, Vučelić-Radović, Biljana, Rakić, Vesna, "The extraction of antioxidative compounds from rusks enriched with millet flour (Panicum miliaceum L.)" in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY, 83, no. 6 (2018):723-732,
https://doi.org/10.2298/JSC171229028P . .

TY  - JOUR
AU  - Milojević-Rakić, M.
AU  - Dondur, Vera
AU  - Damjanović-Vasilić, Ljiljana
AU  - Rac, Vladislav
AU  - Rakić, Vesna
PY  - 2018
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4737
AB  - The competitive adsorption of aromatic hydrocarbons (benzene, methyl- and ethyl-benzene) and water on FeZSM-5 zeolites have been investigated by means of temperature-programmed desorption coupled with mass spectrometry (TPD/MS). The incorporation of iron in zeolite was done by aqueous ion exchange using dilute solutions of Fe complexes (ferric citrate and ferrous oxalate) and ferric nitrate. Diffuse reflectance UV-Vis spectroscopy and temperature-programmed reduction (TPR) were applied to characterize active sites on investigated zeolites. The existence of different iron species on FeZSM-5 zeolites was revealed. It has been demonstrated that the activity of the Fe exchanged zeolite depends on the iron salt used for ion exchange. The isolated, dispersed ions, which are often considered to be essential for adsorption and catalysis, were obtained with high yield only by ion exchange in the presence of ferrous oxalate. TPD/MS measurements show that aromatic hydrocarbons adsorb on specific, strong active sites in hydrated zeolites. The binding occurred when organic molecules replace water previously adsorbed at the same sites. Benzene showed non-dissociative adsorption/desorption, while new mass fragments were recorded during methyl-benzene and ethyl-benzene desorption implying their dissociative adsorption/desorption on active sites in hydrated zeolites.
PB  - Springer, Dordrecht
T2  - Reaction Kinetics Mechanisms and Catalysis
T1  - The accessibility of sites active in the dissociative adsorption of aromatic hydrocarbons in FeZSM-5 zeolite
EP  - 246
IS  - 1
SP  - 231
VL  - 123
DO  - 10.1007/s11144-017-1275-y
ER  - 

@article{
author = "Milojević-Rakić, M. and Dondur, Vera and Damjanović-Vasilić, Ljiljana and Rac, Vladislav and Rakić, Vesna",
year = "2018",
abstract = "The competitive adsorption of aromatic hydrocarbons (benzene, methyl- and ethyl-benzene) and water on FeZSM-5 zeolites have been investigated by means of temperature-programmed desorption coupled with mass spectrometry (TPD/MS). The incorporation of iron in zeolite was done by aqueous ion exchange using dilute solutions of Fe complexes (ferric citrate and ferrous oxalate) and ferric nitrate. Diffuse reflectance UV-Vis spectroscopy and temperature-programmed reduction (TPR) were applied to characterize active sites on investigated zeolites. The existence of different iron species on FeZSM-5 zeolites was revealed. It has been demonstrated that the activity of the Fe exchanged zeolite depends on the iron salt used for ion exchange. The isolated, dispersed ions, which are often considered to be essential for adsorption and catalysis, were obtained with high yield only by ion exchange in the presence of ferrous oxalate. TPD/MS measurements show that aromatic hydrocarbons adsorb on specific, strong active sites in hydrated zeolites. The binding occurred when organic molecules replace water previously adsorbed at the same sites. Benzene showed non-dissociative adsorption/desorption, while new mass fragments were recorded during methyl-benzene and ethyl-benzene desorption implying their dissociative adsorption/desorption on active sites in hydrated zeolites.",
publisher = "Springer, Dordrecht",
journal = "Reaction Kinetics Mechanisms and Catalysis",
title = "The accessibility of sites active in the dissociative adsorption of aromatic hydrocarbons in FeZSM-5 zeolite",
pages = "246-231",
number = "1",
volume = "123",
doi = "10.1007/s11144-017-1275-y"
}

Milojević-Rakić, M., Dondur, V., Damjanović-Vasilić, L., Rac, V.,& Rakić, V.. (2018). The accessibility of sites active in the dissociative adsorption of aromatic hydrocarbons in FeZSM-5 zeolite. in Reaction Kinetics Mechanisms and Catalysis
Springer, Dordrecht., 123(1), 231-246.
https://doi.org/10.1007/s11144-017-1275-y

Milojević-Rakić M, Dondur V, Damjanović-Vasilić L, Rac V, Rakić V. The accessibility of sites active in the dissociative adsorption of aromatic hydrocarbons in FeZSM-5 zeolite. in Reaction Kinetics Mechanisms and Catalysis. 2018;123(1):231-246.
doi:10.1007/s11144-017-1275-y .

Milojević-Rakić, M., Dondur, Vera, Damjanović-Vasilić, Ljiljana, Rac, Vladislav, Rakić, Vesna, "The accessibility of sites active in the dissociative adsorption of aromatic hydrocarbons in FeZSM-5 zeolite" in Reaction Kinetics Mechanisms and Catalysis, 123, no. 1 (2018):231-246,
https://doi.org/10.1007/s11144-017-1275-y . .

TY  - JOUR
AU  - Karličić, Vera
AU  - Živanović, Iva
AU  - Matijašević, Danka
AU  - Raičević, Vera
AU  - Nikšić, Miomir
AU  - Rac, Vladislav
AU  - Simić, Aleksandar
PY  - 2017
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4607
AB  - Zeolites can mitigate ammonium losses to the environment by taking up the ions from sources such as farmyard manure and ammonium-bearing fertilizers. This ability can improve nitrogen fertilizing practice given that ammonium ions loaded onto zeolite are available for plant uptake. The main goal of this study was to assess the influence of zeolite (clinoptilolite) and ammonia-loaded clinoptilolite on growth and yield of red clover (Trifolium pratense L.), as well as their influence on the microbial dynamics in soil. Plants sown in pots were cut four times, and dry matter yield (DM) of each harvest was weighed. The number of culturable bacteria, moulds, ammonifiers, Azotobacter sp. and actinomycetes was determined at the beginning of the experiment, and after each harvest. Two control treatments (soil without fertilizer and soil supplemented with mineral fertilizer - CAN) were included in the study. The application of ammonia-loaded clinoptilolite positively and significantly affected the microbial activity and provided higher yields (from 4.9 g/pot in ammonia-loaded clinoptilolite treatment to 4.3 g/pot in soil with zeolite treatment). Our results suggest that the addition of clinoptilolite to organic fertilizers (manure, composts) could be recommended. The increase of microbial communities’ abundances and their activity represented the key benefit from clinoptilolite application.
AB  - Zeoliti mogu ublažiti otpuštanje amonijaka u prirodu preko uzimanja jona iz izvora kao što su stajnjak i đubriva bogata amonijakom. Ova sposobnost može unaprediti đubrenje azotom preko zeolitom usvojenih amonijum jona koji bi tako postali dostupni za usvajanje biljkama. Cilj ovih ispitivanja je bio procena uticaja zeolita (klinoptilolita) i zeolita obogaćenog amonijakom na rast i prinos crvene deteline (Trifolium pratense L.), kao i na njihovu ulogu u mikrobiološkoj dinamici zemljišta. Biljke sejane u sudovima su košene četiri puta i meren je prinos suve materije (SM) svakog otkosa. Broj bakterija, plesni, amonifikatora, Azotobacter sp. i aktinomiceta je utvrđen na početku ogleda i nakon svakog košenja. U istraživanja su uključena dva kontrolna tretmana (zemljište bez đubriva i zemljište sa dodatim mineralnim đubrivom - KAN). Primena klinoptilolita obogaćenog sa amonijakom je pozitivno i značajno uticala na mikrobiološku aktivnost i povećala je prinos (od 4,9 g po sudu kod tretmana sa klinoptilolitom obogaćenim amonijakom do 4,3 g po sudu u zemljištu sa zemljištem i zeolitom zajedno). Naša istraživanja sugerišu da se može preporučiti dodavanje klinoptilolita organskim đubrivima (stajnjaku, kompostu). Ključna dobit od primene klinoptilolita bi se ogledala u povećanju zastupljenosti mikrobioloških zajednica i njihove aktivnosti.
PB  - Institut za ratarstvo i povrtarstvo, Novi Sad
T2  - Ratarstvo i povrtarstvo
T1  - Stimulation of soil microbiological activity by clinoptilolite: The effect on plant growth
T1  - Stimulacija zemljišne mikrobiološke aktivnosti sa klinoptilolitom - uticaj na rast biljke
EP  - 123
IS  - 3
SP  - 117
VL  - 54
DO  - 10.5937/ratpov54-14870
ER  - 

@article{
author = "Karličić, Vera and Živanović, Iva and Matijašević, Danka and Raičević, Vera and Nikšić, Miomir and Rac, Vladislav and Simić, Aleksandar",
year = "2017",
abstract = "Zeolites can mitigate ammonium losses to the environment by taking up the ions from sources such as farmyard manure and ammonium-bearing fertilizers. This ability can improve nitrogen fertilizing practice given that ammonium ions loaded onto zeolite are available for plant uptake. The main goal of this study was to assess the influence of zeolite (clinoptilolite) and ammonia-loaded clinoptilolite on growth and yield of red clover (Trifolium pratense L.), as well as their influence on the microbial dynamics in soil. Plants sown in pots were cut four times, and dry matter yield (DM) of each harvest was weighed. The number of culturable bacteria, moulds, ammonifiers, Azotobacter sp. and actinomycetes was determined at the beginning of the experiment, and after each harvest. Two control treatments (soil without fertilizer and soil supplemented with mineral fertilizer - CAN) were included in the study. The application of ammonia-loaded clinoptilolite positively and significantly affected the microbial activity and provided higher yields (from 4.9 g/pot in ammonia-loaded clinoptilolite treatment to 4.3 g/pot in soil with zeolite treatment). Our results suggest that the addition of clinoptilolite to organic fertilizers (manure, composts) could be recommended. The increase of microbial communities’ abundances and their activity represented the key benefit from clinoptilolite application., Zeoliti mogu ublažiti otpuštanje amonijaka u prirodu preko uzimanja jona iz izvora kao što su stajnjak i đubriva bogata amonijakom. Ova sposobnost može unaprediti đubrenje azotom preko zeolitom usvojenih amonijum jona koji bi tako postali dostupni za usvajanje biljkama. Cilj ovih ispitivanja je bio procena uticaja zeolita (klinoptilolita) i zeolita obogaćenog amonijakom na rast i prinos crvene deteline (Trifolium pratense L.), kao i na njihovu ulogu u mikrobiološkoj dinamici zemljišta. Biljke sejane u sudovima su košene četiri puta i meren je prinos suve materije (SM) svakog otkosa. Broj bakterija, plesni, amonifikatora, Azotobacter sp. i aktinomiceta je utvrđen na početku ogleda i nakon svakog košenja. U istraživanja su uključena dva kontrolna tretmana (zemljište bez đubriva i zemljište sa dodatim mineralnim đubrivom - KAN). Primena klinoptilolita obogaćenog sa amonijakom je pozitivno i značajno uticala na mikrobiološku aktivnost i povećala je prinos (od 4,9 g po sudu kod tretmana sa klinoptilolitom obogaćenim amonijakom do 4,3 g po sudu u zemljištu sa zemljištem i zeolitom zajedno). Naša istraživanja sugerišu da se može preporučiti dodavanje klinoptilolita organskim đubrivima (stajnjaku, kompostu). Ključna dobit od primene klinoptilolita bi se ogledala u povećanju zastupljenosti mikrobioloških zajednica i njihove aktivnosti.",
publisher = "Institut za ratarstvo i povrtarstvo, Novi Sad",
journal = "Ratarstvo i povrtarstvo",
title = "Stimulation of soil microbiological activity by clinoptilolite: The effect on plant growth, Stimulacija zemljišne mikrobiološke aktivnosti sa klinoptilolitom - uticaj na rast biljke",
pages = "123-117",
number = "3",
volume = "54",
doi = "10.5937/ratpov54-14870"
}

Karličić, V., Živanović, I., Matijašević, D., Raičević, V., Nikšić, M., Rac, V.,& Simić, A.. (2017). Stimulation of soil microbiological activity by clinoptilolite: The effect on plant growth. in Ratarstvo i povrtarstvo
Institut za ratarstvo i povrtarstvo, Novi Sad., 54(3), 117-123.
https://doi.org/10.5937/ratpov54-14870

Karličić V, Živanović I, Matijašević D, Raičević V, Nikšić M, Rac V, Simić A. Stimulation of soil microbiological activity by clinoptilolite: The effect on plant growth. in Ratarstvo i povrtarstvo. 2017;54(3):117-123.
doi:10.5937/ratpov54-14870 .

Karličić, Vera, Živanović, Iva, Matijašević, Danka, Raičević, Vera, Nikšić, Miomir, Rac, Vladislav, Simić, Aleksandar, "Stimulation of soil microbiological activity by clinoptilolite: The effect on plant growth" in Ratarstvo i povrtarstvo, 54, no. 3 (2017):117-123,
https://doi.org/10.5937/ratpov54-14870 . .

TY  - CONF
AU  - Malicanin, Marko
AU  - Rac, Vladislav
AU  - Rakić, Vesna
PY  - 2017
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4425
AB  - Keeping of red wine in bottles is very important for its maturation and quality. However, there are numerous changes that happen during that period, usually caused by oxidative processes and changes in structure and content of polyphenolic compounds. The goal of this study was to determine the effects of Inactivated dry yeast (IDY) products on aging, phenolics content, colour stability and sensory characteristics of red wine Prokupac (Serbian autochthonous variety). The treatment of wine was done by 3 different IDYP (Lallemand, Canada): Optimum White, Opti Less and Noblesse, applied as 0.2 g/L and 0.4 g/L during 15 days. Subsequently, wine clarification was done, followed by filtration and bottling. Untreated wines were used for comparison. Wine was subjected to accelerated aging (10 days at 55 degrees C) and also to normal aging conditions during one year. To determine the influence of IDYP following parameters were monitored: dissolved O-2, free and total SO2, sugar free extract, content of total phenolics, flavonoids, flavan-3-ols and anthocyanins, percent of polymeric color, color tint, color intensity and sensory characteristics (Panel method). The obtained results clearly show that IDY products are good scavengers of oxygen and have a positive impact on wine quality preservation and its organoleptic characteristics. However, a slight decrease of polyphenols content was detected.
PB  - E D P Sciences, Cedex A
C3  - 40th World Congress of Vine and Wine
T1  - The effect of inactivated yeast-based products on the process of wine aging, phenolic compounds and sensory characteristics of red wine Prokupac
VL  - 9
DO  - 10.1051/bioconf/20170902004
ER  - 

@conference{
author = "Malicanin, Marko and Rac, Vladislav and Rakić, Vesna",
year = "2017",
abstract = "Keeping of red wine in bottles is very important for its maturation and quality. However, there are numerous changes that happen during that period, usually caused by oxidative processes and changes in structure and content of polyphenolic compounds. The goal of this study was to determine the effects of Inactivated dry yeast (IDY) products on aging, phenolics content, colour stability and sensory characteristics of red wine Prokupac (Serbian autochthonous variety). The treatment of wine was done by 3 different IDYP (Lallemand, Canada): Optimum White, Opti Less and Noblesse, applied as 0.2 g/L and 0.4 g/L during 15 days. Subsequently, wine clarification was done, followed by filtration and bottling. Untreated wines were used for comparison. Wine was subjected to accelerated aging (10 days at 55 degrees C) and also to normal aging conditions during one year. To determine the influence of IDYP following parameters were monitored: dissolved O-2, free and total SO2, sugar free extract, content of total phenolics, flavonoids, flavan-3-ols and anthocyanins, percent of polymeric color, color tint, color intensity and sensory characteristics (Panel method). The obtained results clearly show that IDY products are good scavengers of oxygen and have a positive impact on wine quality preservation and its organoleptic characteristics. However, a slight decrease of polyphenols content was detected.",
publisher = "E D P Sciences, Cedex A",
journal = "40th World Congress of Vine and Wine",
title = "The effect of inactivated yeast-based products on the process of wine aging, phenolic compounds and sensory characteristics of red wine Prokupac",
volume = "9",
doi = "10.1051/bioconf/20170902004"
}

Malicanin, M., Rac, V.,& Rakić, V.. (2017). The effect of inactivated yeast-based products on the process of wine aging, phenolic compounds and sensory characteristics of red wine Prokupac. in 40th World Congress of Vine and Wine
E D P Sciences, Cedex A., 9.
https://doi.org/10.1051/bioconf/20170902004

Malicanin M, Rac V, Rakić V. The effect of inactivated yeast-based products on the process of wine aging, phenolic compounds and sensory characteristics of red wine Prokupac. in 40th World Congress of Vine and Wine. 2017;9.
doi:10.1051/bioconf/20170902004 .

Malicanin, Marko, Rac, Vladislav, Rakić, Vesna, "The effect of inactivated yeast-based products on the process of wine aging, phenolic compounds and sensory characteristics of red wine Prokupac" in 40th World Congress of Vine and Wine, 9 (2017),
https://doi.org/10.1051/bioconf/20170902004 . .

TY  - JOUR
AU  - Rac, Vladislav
AU  - Rakić, Vesna
AU  - Damjanović-Vasilić, Ljiljana
AU  - Dondur, Vera
AU  - Auroux, Aline
PY  - 2017
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4487
AB  - Room temperature adsorption of CO and N2O using isothermal calorimetry and in situ FTIR spectroscopy on bimetallic and monometallic forms of Cu, Fe and Mn exchanged zeolite ZSM-5 was studied. The two complementary techniques allowed the assessment of the strengths of interactions as well as the identification of the cations active in adsorption. In bimetallic samples containing Cu, a synergistic effect was observed for CO adsorption, i.e higher strengths of adsorption were detected than for corresponding monometallic samples. Such an effect was not detected for N2O. Furthermore, FTIR measurements revealed that N2O adsorption was somewhat restricted for the cation which was introduced the first in bimetallic samples. These findings imply the importance of the order of cation introduction and the procedure of ion exchange process for the adsorptive properties of bimetallic ZSM-5 and, consequently, catalytic reactions where adsorption of N2O is an important reaction step.
PB  - Elsevier, Amsterdam
T2  - Applied Surface Science
T1  - Complementary approach to the adsorption of CO and N2O on bimetallic ion exchanged ZMS-5 zeolite: Microcalorimetric and FTIR spectroscopy study
EP  - 1140
SP  - 1134
VL  - 423
DO  - 10.1016/j.apsusc.2017.06.269
ER  - 

@article{
author = "Rac, Vladislav and Rakić, Vesna and Damjanović-Vasilić, Ljiljana and Dondur, Vera and Auroux, Aline",
year = "2017",
abstract = "Room temperature adsorption of CO and N2O using isothermal calorimetry and in situ FTIR spectroscopy on bimetallic and monometallic forms of Cu, Fe and Mn exchanged zeolite ZSM-5 was studied. The two complementary techniques allowed the assessment of the strengths of interactions as well as the identification of the cations active in adsorption. In bimetallic samples containing Cu, a synergistic effect was observed for CO adsorption, i.e higher strengths of adsorption were detected than for corresponding monometallic samples. Such an effect was not detected for N2O. Furthermore, FTIR measurements revealed that N2O adsorption was somewhat restricted for the cation which was introduced the first in bimetallic samples. These findings imply the importance of the order of cation introduction and the procedure of ion exchange process for the adsorptive properties of bimetallic ZSM-5 and, consequently, catalytic reactions where adsorption of N2O is an important reaction step.",
publisher = "Elsevier, Amsterdam",
journal = "Applied Surface Science",
title = "Complementary approach to the adsorption of CO and N2O on bimetallic ion exchanged ZMS-5 zeolite: Microcalorimetric and FTIR spectroscopy study",
pages = "1140-1134",
volume = "423",
doi = "10.1016/j.apsusc.2017.06.269"
}

Rac, V., Rakić, V., Damjanović-Vasilić, L., Dondur, V.,& Auroux, A.. (2017). Complementary approach to the adsorption of CO and N2O on bimetallic ion exchanged ZMS-5 zeolite: Microcalorimetric and FTIR spectroscopy study. in Applied Surface Science
Elsevier, Amsterdam., 423, 1134-1140.
https://doi.org/10.1016/j.apsusc.2017.06.269

Rac V, Rakić V, Damjanović-Vasilić L, Dondur V, Auroux A. Complementary approach to the adsorption of CO and N2O on bimetallic ion exchanged ZMS-5 zeolite: Microcalorimetric and FTIR spectroscopy study. in Applied Surface Science. 2017;423:1134-1140.
doi:10.1016/j.apsusc.2017.06.269 .

Rac, Vladislav, Rakić, Vesna, Damjanović-Vasilić, Ljiljana, Dondur, Vera, Auroux, Aline, "Complementary approach to the adsorption of CO and N2O on bimetallic ion exchanged ZMS-5 zeolite: Microcalorimetric and FTIR spectroscopy study" in Applied Surface Science, 423 (2017):1134-1140,
https://doi.org/10.1016/j.apsusc.2017.06.269 . .

TY  - CONF
AU  - Filipović, Nenad
AU  - Saveljić, Igor
AU  - Rac, Vladislav
AU  - Graells, Beatriz Olalde
AU  - Bijelić, Goran
PY  - 2017
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4451
AB  - The concept of iontophoresis is often applied to increase the transdermal transport of drugs and other bioactive agents into the skin or other tissues. It is a non-invasive drug delivery method which involves electromigration and electroosmosis in addition to diffusion and is shown to be a viable alternative to conventional administration routs such as oral, hypodermic and intravenous injection. In this study we investigated, experimentally and numerically, in vitro drug delivery of dexamethasone sodium phosphate to porcine skin. Different current densities, delivery durations and drug loads were investigated experimentally and introduced as boundary conditions for numerical simulations. Nernst-Planck equation was used for calculation of active substance flux through equivalent model of homogeneous hydrogel and skin layers. The obtained numerical results were in good agreement with experimental observations. A comprehensive in-silico platform, which includes appropriate numerical tools for fitting, could contribute to iontophoretic drug-delivery devices design and correct dosage and drug clearance profiles as well as to perform much faster in-silico experiments to better determine parameters and performance criteria of iontophoretic drug delivery.
PB  - Elsevier Science Bv, Amsterdam
C3  - International Journal of Pharmaceutics
T1  - Computational and experimental model of transdermal iontophorethic drug delivery system
EP  - 388
IS  - 2
SP  - 383
VL  - 533
DO  - 10.1016/j.ijpharm.2017.05.066
ER  - 

@conference{
author = "Filipović, Nenad and Saveljić, Igor and Rac, Vladislav and Graells, Beatriz Olalde and Bijelić, Goran",
year = "2017",
abstract = "The concept of iontophoresis is often applied to increase the transdermal transport of drugs and other bioactive agents into the skin or other tissues. It is a non-invasive drug delivery method which involves electromigration and electroosmosis in addition to diffusion and is shown to be a viable alternative to conventional administration routs such as oral, hypodermic and intravenous injection. In this study we investigated, experimentally and numerically, in vitro drug delivery of dexamethasone sodium phosphate to porcine skin. Different current densities, delivery durations and drug loads were investigated experimentally and introduced as boundary conditions for numerical simulations. Nernst-Planck equation was used for calculation of active substance flux through equivalent model of homogeneous hydrogel and skin layers. The obtained numerical results were in good agreement with experimental observations. A comprehensive in-silico platform, which includes appropriate numerical tools for fitting, could contribute to iontophoretic drug-delivery devices design and correct dosage and drug clearance profiles as well as to perform much faster in-silico experiments to better determine parameters and performance criteria of iontophoretic drug delivery.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "International Journal of Pharmaceutics",
title = "Computational and experimental model of transdermal iontophorethic drug delivery system",
pages = "388-383",
number = "2",
volume = "533",
doi = "10.1016/j.ijpharm.2017.05.066"
}

Filipović, N., Saveljić, I., Rac, V., Graells, B. O.,& Bijelić, G.. (2017). Computational and experimental model of transdermal iontophorethic drug delivery system. in International Journal of Pharmaceutics
Elsevier Science Bv, Amsterdam., 533(2), 383-388.
https://doi.org/10.1016/j.ijpharm.2017.05.066

Filipović N, Saveljić I, Rac V, Graells BO, Bijelić G. Computational and experimental model of transdermal iontophorethic drug delivery system. in International Journal of Pharmaceutics. 2017;533(2):383-388.
doi:10.1016/j.ijpharm.2017.05.066 .

Filipović, Nenad, Saveljić, Igor, Rac, Vladislav, Graells, Beatriz Olalde, Bijelić, Goran, "Computational and experimental model of transdermal iontophorethic drug delivery system" in International Journal of Pharmaceutics, 533, no. 2 (2017):383-388,
https://doi.org/10.1016/j.ijpharm.2017.05.066 . .