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  - CONF
AU  - Filipović, Nenad
AU  - Stevanović, Magdalena
AU  - Đurđević, Jelena
AU  - Milikić, Jadranka
AU  - Veselinović, Ljiljana
AU  - Pavlović, Vladimir B.
AU  - Uskoković, Dragan
PY  - 2014
UR  - http://dais.sanu.ac.rs/123456789/561
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5691
AB  - Magnesium, a naturally occurring mineral, is very important for the normal functioning of the body. However, certain situations such as poor diet, alcoholism, poorly controlled diabetes, etc., cause body to lose magnesium faster than it can be replace it from diet. Magnesium also plays a role in body's detoxification processes and therefore is important for preventing damage from environmental chemicals, heavy metals and other toxins. Polyesters like polylactide (PLA), polyglycolide (PGA) or poly(lactide-co-glycolide) (PLGA) are used for the controlled delivery of several classes of medicaments like anticancer agents, immunomodulatory drugs, hormones, vitamins, antibodies, etc. Magnesium oxide nanoparticles (MgO) have been synthesized by chemical reduction method and additionally encapsulated within spherical polyester poly(lactide-co-glycolide) (PLGA) particles (PLGA/MgO). Synthesized particles were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and transmission electron microscopy (TEM).
PB  - Belgrade : Materials Research Society of Serbia
C3  - The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts
T1  - Facile chemical synthesis and characterization of polyester/magnesium oxide nanoparticles for biomedical aplication
EP  - 71
SP  - 71
UR  - https://hdl.handle.net/21.15107/rcub_dais_561
ER  - 

@conference{
author = "Filipović, Nenad and Stevanović, Magdalena and Đurđević, Jelena and Milikić, Jadranka and Veselinović, Ljiljana and Pavlović, Vladimir B. and Uskoković, Dragan",
year = "2014",
abstract = "Magnesium, a naturally occurring mineral, is very important for the normal functioning of the body. However, certain situations such as poor diet, alcoholism, poorly controlled diabetes, etc., cause body to lose magnesium faster than it can be replace it from diet. Magnesium also plays a role in body's detoxification processes and therefore is important for preventing damage from environmental chemicals, heavy metals and other toxins. Polyesters like polylactide (PLA), polyglycolide (PGA) or poly(lactide-co-glycolide) (PLGA) are used for the controlled delivery of several classes of medicaments like anticancer agents, immunomodulatory drugs, hormones, vitamins, antibodies, etc. Magnesium oxide nanoparticles (MgO) have been synthesized by chemical reduction method and additionally encapsulated within spherical polyester poly(lactide-co-glycolide) (PLGA) particles (PLGA/MgO). Synthesized particles were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and transmission electron microscopy (TEM).",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts",
title = "Facile chemical synthesis and characterization of polyester/magnesium oxide nanoparticles for biomedical aplication",
pages = "71-71",
url = "https://hdl.handle.net/21.15107/rcub_dais_561"
}

Filipović, N., Stevanović, M., Đurđević, J., Milikić, J., Veselinović, L., Pavlović, V. B.,& Uskoković, D.. (2014). Facile chemical synthesis and characterization of polyester/magnesium oxide nanoparticles for biomedical aplication. in The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts
Belgrade : Materials Research Society of Serbia., 71-71.
https://hdl.handle.net/21.15107/rcub_dais_561

Filipović N, Stevanović M, Đurđević J, Milikić J, Veselinović L, Pavlović VB, Uskoković D. Facile chemical synthesis and characterization of polyester/magnesium oxide nanoparticles for biomedical aplication. in The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts. 2014;:71-71.
https://hdl.handle.net/21.15107/rcub_dais_561 .

Filipović, Nenad, Stevanović, Magdalena, Đurđević, Jelena, Milikić, Jadranka, Veselinović, Ljiljana, Pavlović, Vladimir B., Uskoković, Dragan, "Facile chemical synthesis and characterization of polyester/magnesium oxide nanoparticles for biomedical aplication" in The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts (2014):71-71,
https://hdl.handle.net/21.15107/rcub_dais_561 .

TY  - CONF
AU  - Filipović, Nenad
AU  - Stevanović, Magdalena
AU  - Pavlović, Vladimir B.
AU  - Uskoković, Dragan
PY  - 2013
UR  - http://dais.sanu.ac.rs/123456789/431
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5680
AB  - Drug delivery systems of nano- and micro-size represent a new generation of therapeutics that hold promise to become excellent tool in treatment of various diseases and disorders, which are resistant to currently available drugs. This study was performed in order to develop the selenium nanoparticles coated with poly(ε-caprolactone) (PCL), as a potential anticancer agent. Selenium nanoparticles (SeNp) were first synthesized by chemical reduction of sodium selenite, using ascorbic acid as reductant and bovine serum albumin as stabilizer. Obtained SeNPs, with average diameter of ~80 nm, were then incorporated within PCL applying emulsification and freeze drying methods. The final microparticles of PCL/SeNp were characterized by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). Efficiency of encapsulation of SeNp within PCL particles was determined with inductively coupled plasma atomic emission spectroscopy (ICP-AES) analyses.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of Abstracts / Twelfth Young Researchers' Conference Materials Sciences and Engineering December 11-13, 2013, Belgrade, Serbia
T1  - Preparation and characterization of selenium nanoparticles incorporated within poly(ε-caprolactone)
EP  - 4
SP  - 4
UR  - https://hdl.handle.net/21.15107/rcub_dais_431
ER  - 

@conference{
author = "Filipović, Nenad and Stevanović, Magdalena and Pavlović, Vladimir B. and Uskoković, Dragan",
year = "2013",
abstract = "Drug delivery systems of nano- and micro-size represent a new generation of therapeutics that hold promise to become excellent tool in treatment of various diseases and disorders, which are resistant to currently available drugs. This study was performed in order to develop the selenium nanoparticles coated with poly(ε-caprolactone) (PCL), as a potential anticancer agent. Selenium nanoparticles (SeNp) were first synthesized by chemical reduction of sodium selenite, using ascorbic acid as reductant and bovine serum albumin as stabilizer. Obtained SeNPs, with average diameter of ~80 nm, were then incorporated within PCL applying emulsification and freeze drying methods. The final microparticles of PCL/SeNp were characterized by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). Efficiency of encapsulation of SeNp within PCL particles was determined with inductively coupled plasma atomic emission spectroscopy (ICP-AES) analyses.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of Abstracts / Twelfth Young Researchers' Conference Materials Sciences and Engineering December 11-13, 2013, Belgrade, Serbia",
title = "Preparation and characterization of selenium nanoparticles incorporated within poly(ε-caprolactone)",
pages = "4-4",
url = "https://hdl.handle.net/21.15107/rcub_dais_431"
}

Filipović, N., Stevanović, M., Pavlović, V. B.,& Uskoković, D.. (2013). Preparation and characterization of selenium nanoparticles incorporated within poly(ε-caprolactone). in Program and the Book of Abstracts / Twelfth Young Researchers' Conference Materials Sciences and Engineering December 11-13, 2013, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 4-4.
https://hdl.handle.net/21.15107/rcub_dais_431

Filipović N, Stevanović M, Pavlović VB, Uskoković D. Preparation and characterization of selenium nanoparticles incorporated within poly(ε-caprolactone). in Program and the Book of Abstracts / Twelfth Young Researchers' Conference Materials Sciences and Engineering December 11-13, 2013, Belgrade, Serbia. 2013;:4-4.
https://hdl.handle.net/21.15107/rcub_dais_431 .

Filipović, Nenad, Stevanović, Magdalena, Pavlović, Vladimir B., Uskoković, Dragan, "Preparation and characterization of selenium nanoparticles incorporated within poly(ε-caprolactone)" in Program and the Book of Abstracts / Twelfth Young Researchers' Conference Materials Sciences and Engineering December 11-13, 2013, Belgrade, Serbia (2013):4-4,
https://hdl.handle.net/21.15107/rcub_dais_431 .

TY  - JOUR
AU  - Filipović, Nenad
AU  - Stevanović, Magdalena
AU  - Radulović, Aleksandra
AU  - Pavlović, Vladimir
AU  - Uskoković, Dragan
PY  - 2013
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3298
AB  - Poly(epsilon-caprolactone) (PCL) particles were prepared by physicochemical method with solvent/non-solvent systems. The synthetic polymer polyvinylpyrrolidone (PVP) and natural polymer poly(alpha,gamma,L-glutamic acid) (PGA), were used as stabilizers and their influence on size and morphology of the particles was examined. The results were compared with those obtained without the use of stabilizers. This study evaluated, for the first time, PGA as stabilizer of PCL particles and demonstrated that PGA is more efficient stabilizer of PCL particles than most commonly used PVP. The particles obtained by using PGA as stabilizer were spherical, with smooth surfaces and dimensions below 1 mu m. The drying conditions were also varied in order to examine their influence on the formation of PCL particles. The samples were characterized by Fourier-transform infrared spectroscopy, scanning electron microscopy, particle size distribution (DLS) and zeta potential measurements.
PB  - Elsevier Sci Ltd, Oxford
T2  - Composites Part B-Engineering
T1  - Facile synthesis of poly(epsilon-caprolactone) micro and nanospheres using different types of polyelectrolytes as stabilizers under ambient and elevated temperature
EP  - 1479
IS  - 1
SP  - 1471
VL  - 45
DO  - 10.1016/j.compositesb.2012.07.008
ER  - 

@article{
author = "Filipović, Nenad and Stevanović, Magdalena and Radulović, Aleksandra and Pavlović, Vladimir and Uskoković, Dragan",
year = "2013",
abstract = "Poly(epsilon-caprolactone) (PCL) particles were prepared by physicochemical method with solvent/non-solvent systems. The synthetic polymer polyvinylpyrrolidone (PVP) and natural polymer poly(alpha,gamma,L-glutamic acid) (PGA), were used as stabilizers and their influence on size and morphology of the particles was examined. The results were compared with those obtained without the use of stabilizers. This study evaluated, for the first time, PGA as stabilizer of PCL particles and demonstrated that PGA is more efficient stabilizer of PCL particles than most commonly used PVP. The particles obtained by using PGA as stabilizer were spherical, with smooth surfaces and dimensions below 1 mu m. The drying conditions were also varied in order to examine their influence on the formation of PCL particles. The samples were characterized by Fourier-transform infrared spectroscopy, scanning electron microscopy, particle size distribution (DLS) and zeta potential measurements.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Composites Part B-Engineering",
title = "Facile synthesis of poly(epsilon-caprolactone) micro and nanospheres using different types of polyelectrolytes as stabilizers under ambient and elevated temperature",
pages = "1479-1471",
number = "1",
volume = "45",
doi = "10.1016/j.compositesb.2012.07.008"
}

Filipović, N., Stevanović, M., Radulović, A., Pavlović, V.,& Uskoković, D.. (2013). Facile synthesis of poly(epsilon-caprolactone) micro and nanospheres using different types of polyelectrolytes as stabilizers under ambient and elevated temperature. in Composites Part B-Engineering
Elsevier Sci Ltd, Oxford., 45(1), 1471-1479.
https://doi.org/10.1016/j.compositesb.2012.07.008

Filipović N, Stevanović M, Radulović A, Pavlović V, Uskoković D. Facile synthesis of poly(epsilon-caprolactone) micro and nanospheres using different types of polyelectrolytes as stabilizers under ambient and elevated temperature. in Composites Part B-Engineering. 2013;45(1):1471-1479.
doi:10.1016/j.compositesb.2012.07.008 .

Filipović, Nenad, Stevanović, Magdalena, Radulović, Aleksandra, Pavlović, Vladimir, Uskoković, Dragan, "Facile synthesis of poly(epsilon-caprolactone) micro and nanospheres using different types of polyelectrolytes as stabilizers under ambient and elevated temperature" in Composites Part B-Engineering, 45, no. 1 (2013):1471-1479,
https://doi.org/10.1016/j.compositesb.2012.07.008 . .

TY  - CONF
AU  - Stupar, Petar
AU  - Stevanović, Magdalena
AU  - Filipović, Nenad
AU  - Pavlović, Vladimir B.
AU  - Nunić, Jana
AU  - Cundrič, Sandra
AU  - Filipič, Metka
AU  - Uskoković, Dragan
PY  - 2012
UR  - http://dais.sanu.ac.rs/123456789/531
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5689
AB  - A common limitation of using polymeric micro and nanoparticles in long-term conservation is due to their poor physical and chemical stability. Freeze-drying is one of the most convenient methods that enable further reconstitution of micro and nanoparticles for therapeutical use. Nevertheless, this process generates various stresses during freezing and desiccation steps. The aim of this study was to evaluate different cryoprotectants (protective excipients that are usually added to increase stability upon storage and protect the particles from freezing stress): sugars (glucose and sucrose) and polymers (PVA and PGA), on the outcome of freeze-dried poly(ε-caprolactone) micro and nanospheres. The best freeze-drying results in terms of morphological characteristics, analyzed with SEM, were achieved with glucose at concentration of 1%. The FTIR analysis confirmed that the molecular structure of PCL particles remained the same after the addition cryoprotectants.
PB  - Belgrade : Materials Research Society of Serbia; Institute of Technical Sciences of SASA; Vinča Institute of Nuclear Sciences, University of Belgrade
C3  - Joint Event of the 11th Young Researchers’ Conference: Materials Science and Engineering and the 1st European Early Stage Researches’ Conference on Hydrogen Storage: Program and the Book of Abstracts
T1  - Effects of different cryoprotectants on morphology of lyophilized poly(ε-caprolactone) micro and nanospheres
EP  - 104
SP  - 104
UR  - https://hdl.handle.net/21.15107/rcub_dais_531
ER  - 

@conference{
author = "Stupar, Petar and Stevanović, Magdalena and Filipović, Nenad and Pavlović, Vladimir B. and Nunić, Jana and Cundrič, Sandra and Filipič, Metka and Uskoković, Dragan",
year = "2012",
abstract = "A common limitation of using polymeric micro and nanoparticles in long-term conservation is due to their poor physical and chemical stability. Freeze-drying is one of the most convenient methods that enable further reconstitution of micro and nanoparticles for therapeutical use. Nevertheless, this process generates various stresses during freezing and desiccation steps. The aim of this study was to evaluate different cryoprotectants (protective excipients that are usually added to increase stability upon storage and protect the particles from freezing stress): sugars (glucose and sucrose) and polymers (PVA and PGA), on the outcome of freeze-dried poly(ε-caprolactone) micro and nanospheres. The best freeze-drying results in terms of morphological characteristics, analyzed with SEM, were achieved with glucose at concentration of 1%. The FTIR analysis confirmed that the molecular structure of PCL particles remained the same after the addition cryoprotectants.",
publisher = "Belgrade : Materials Research Society of Serbia; Institute of Technical Sciences of SASA; Vinča Institute of Nuclear Sciences, University of Belgrade",
journal = "Joint Event of the 11th Young Researchers’ Conference: Materials Science and Engineering and the 1st European Early Stage Researches’ Conference on Hydrogen Storage: Program and the Book of Abstracts",
title = "Effects of different cryoprotectants on morphology of lyophilized poly(ε-caprolactone) micro and nanospheres",
pages = "104-104",
url = "https://hdl.handle.net/21.15107/rcub_dais_531"
}

Stupar, P., Stevanović, M., Filipović, N., Pavlović, V. B., Nunić, J., Cundrič, S., Filipič, M.,& Uskoković, D.. (2012). Effects of different cryoprotectants on morphology of lyophilized poly(ε-caprolactone) micro and nanospheres. in Joint Event of the 11th Young Researchers’ Conference: Materials Science and Engineering and the 1st European Early Stage Researches’ Conference on Hydrogen Storage: Program and the Book of Abstracts
Belgrade : Materials Research Society of Serbia; Institute of Technical Sciences of SASA; Vinča Institute of Nuclear Sciences, University of Belgrade., 104-104.
https://hdl.handle.net/21.15107/rcub_dais_531

Stupar P, Stevanović M, Filipović N, Pavlović VB, Nunić J, Cundrič S, Filipič M, Uskoković D. Effects of different cryoprotectants on morphology of lyophilized poly(ε-caprolactone) micro and nanospheres. in Joint Event of the 11th Young Researchers’ Conference: Materials Science and Engineering and the 1st European Early Stage Researches’ Conference on Hydrogen Storage: Program and the Book of Abstracts. 2012;:104-104.
https://hdl.handle.net/21.15107/rcub_dais_531 .

Stupar, Petar, Stevanović, Magdalena, Filipović, Nenad, Pavlović, Vladimir B., Nunić, Jana, Cundrič, Sandra, Filipič, Metka, Uskoković, Dragan, "Effects of different cryoprotectants on morphology of lyophilized poly(ε-caprolactone) micro and nanospheres" in Joint Event of the 11th Young Researchers’ Conference: Materials Science and Engineering and the 1st European Early Stage Researches’ Conference on Hydrogen Storage: Program and the Book of Abstracts (2012):104-104,
https://hdl.handle.net/21.15107/rcub_dais_531 .

TY  - CONF
AU  - Filipović, Nenad
AU  - Stevanović, Magdalena
AU  - Pavlović, Vladimir B.
AU  - Radulović, Aleksandra
AU  - Stojanović, Zoran S.
AU  - Uskoković, Dragan
PY  - 2011
UR  - http://dais.sanu.ac.rs/123456789/692
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5705
AB  - Poly-ε-caprolactone (PCL) is a semicrystalline, biodegradable and biocompatible polymer. Its advantages, as high permeability to small drug molecules, failure to generate an acidic environment during degradation (as compared to polylactides and polyglycolides) and a slow degradation rate, make this aliphatic polyester suitable for extended long-term delivery over a period of more than one year. In this study PCL particles were prepared by physicochemical method with solvent/nonsolvent systems. The synthetic polymer polyvinylpyrrolidone (PVP) and natural polymer poly (α, γ, L-glutamic acid) (PGA), were used as stabilizers and their influence on size and morphology of the particles was examined. The results were compared with those obtained without the use of stabilizers. Characterization of obtained particles was performed by Fourier transform infrared spectroscopy. The morphology and size distribution were determined using SEM and particle analyzer.
PB  - Belgrade : Institute of Technical Sciences of the Serbian Academy of Sciences and Arts
C3  - Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia
T1  - Synthesis and the effect of processing parameters on characteristics of poly-ε-caprolactone micro- and nanospheres
EP  - 2
SP  - 2
UR  - https://hdl.handle.net/21.15107/rcub_dais_692
ER  - 

@conference{
author = "Filipović, Nenad and Stevanović, Magdalena and Pavlović, Vladimir B. and Radulović, Aleksandra and Stojanović, Zoran S. and Uskoković, Dragan",
year = "2011",
abstract = "Poly-ε-caprolactone (PCL) is a semicrystalline, biodegradable and biocompatible polymer. Its advantages, as high permeability to small drug molecules, failure to generate an acidic environment during degradation (as compared to polylactides and polyglycolides) and a slow degradation rate, make this aliphatic polyester suitable for extended long-term delivery over a period of more than one year. In this study PCL particles were prepared by physicochemical method with solvent/nonsolvent systems. The synthetic polymer polyvinylpyrrolidone (PVP) and natural polymer poly (α, γ, L-glutamic acid) (PGA), were used as stabilizers and their influence on size and morphology of the particles was examined. The results were compared with those obtained without the use of stabilizers. Characterization of obtained particles was performed by Fourier transform infrared spectroscopy. The morphology and size distribution were determined using SEM and particle analyzer.",
publisher = "Belgrade : Institute of Technical Sciences of the Serbian Academy of Sciences and Arts",
journal = "Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia",
title = "Synthesis and the effect of processing parameters on characteristics of poly-ε-caprolactone micro- and nanospheres",
pages = "2-2",
url = "https://hdl.handle.net/21.15107/rcub_dais_692"
}

Filipović, N., Stevanović, M., Pavlović, V. B., Radulović, A., Stojanović, Z. S.,& Uskoković, D.. (2011). Synthesis and the effect of processing parameters on characteristics of poly-ε-caprolactone micro- and nanospheres. in Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of the Serbian Academy of Sciences and Arts., 2-2.
https://hdl.handle.net/21.15107/rcub_dais_692

Filipović N, Stevanović M, Pavlović VB, Radulović A, Stojanović ZS, Uskoković D. Synthesis and the effect of processing parameters on characteristics of poly-ε-caprolactone micro- and nanospheres. in Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia. 2011;:2-2.
https://hdl.handle.net/21.15107/rcub_dais_692 .

Filipović, Nenad, Stevanović, Magdalena, Pavlović, Vladimir B., Radulović, Aleksandra, Stojanović, Zoran S., Uskoković, Dragan, "Synthesis and the effect of processing parameters on characteristics of poly-ε-caprolactone micro- and nanospheres" in Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia (2011):2-2,
https://hdl.handle.net/21.15107/rcub_dais_692 .

TY  - JOUR
AU  - Stevanović, M.
AU  - Pavlović, Vladimir
AU  - Petković, J.
AU  - Filipić, M.
AU  - Uskoković, Dragan
PY  - 2011
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2674
AB  - Porous, poly(D, L-lactide-co-glycolide) (PLGA) materials were prepared by physicochemical solvent/non-solvent method with polyvinyl pyrrolidone (PVP) as a stabilizer and with silicone oil, paraffin, hydrogen peroxide or sodium chloride as a porogen. The obtained PLGA particles without porogens are non-agglomerated, uniform and with particle size on the submicron scale. The formation of intracellular reactive oxygen species (ROS) was measured spectrophotometrically using a fluorescent probe, 2,7-dichlorofluorescein diacetate (DCFH-DA) and it is shown that PLGA nanospheres are not inducers of intracellular formation. Porous PLGA scaffolds obtained in the experiment with sodium chloride as porogen and water as solvent of the porogen had apparently uniform pore morphology with spheroidal pore in shape and well controlled three-dimensional interconnected network. PLGA scaffolds are highly porous with similar porosity values. The degradation of PLGA nanoparticles and PLGA porous materials were studied in phosphate buffered saline as a degradation medium. The samples were characterized by Infrared Spectroscopy (IR), X-ray difractometry, Zeta potential measurements, Scanning Electron Microscopy (SEM) and Ultraviolet Spectroscopy (UV).
PB  - Budapest Univ Technol & Econ, Budapest
T2  - Express Polymer Letters
T1  - ROS-inducing potential, influence of different porogens and in vitro degradation of poly (D,L-lactide-co-glycolide)-based material
EP  - 1008
IS  - 11
SP  - 996
VL  - 5
DO  - 10.3144/expresspolymlett.2011.97
ER  - 

@article{
author = "Stevanović, M. and Pavlović, Vladimir and Petković, J. and Filipić, M. and Uskoković, Dragan",
year = "2011",
abstract = "Porous, poly(D, L-lactide-co-glycolide) (PLGA) materials were prepared by physicochemical solvent/non-solvent method with polyvinyl pyrrolidone (PVP) as a stabilizer and with silicone oil, paraffin, hydrogen peroxide or sodium chloride as a porogen. The obtained PLGA particles without porogens are non-agglomerated, uniform and with particle size on the submicron scale. The formation of intracellular reactive oxygen species (ROS) was measured spectrophotometrically using a fluorescent probe, 2,7-dichlorofluorescein diacetate (DCFH-DA) and it is shown that PLGA nanospheres are not inducers of intracellular formation. Porous PLGA scaffolds obtained in the experiment with sodium chloride as porogen and water as solvent of the porogen had apparently uniform pore morphology with spheroidal pore in shape and well controlled three-dimensional interconnected network. PLGA scaffolds are highly porous with similar porosity values. The degradation of PLGA nanoparticles and PLGA porous materials were studied in phosphate buffered saline as a degradation medium. The samples were characterized by Infrared Spectroscopy (IR), X-ray difractometry, Zeta potential measurements, Scanning Electron Microscopy (SEM) and Ultraviolet Spectroscopy (UV).",
publisher = "Budapest Univ Technol & Econ, Budapest",
journal = "Express Polymer Letters",
title = "ROS-inducing potential, influence of different porogens and in vitro degradation of poly (D,L-lactide-co-glycolide)-based material",
pages = "1008-996",
number = "11",
volume = "5",
doi = "10.3144/expresspolymlett.2011.97"
}

Stevanović, M., Pavlović, V., Petković, J., Filipić, M.,& Uskoković, D.. (2011). ROS-inducing potential, influence of different porogens and in vitro degradation of poly (D,L-lactide-co-glycolide)-based material. in Express Polymer Letters
Budapest Univ Technol & Econ, Budapest., 5(11), 996-1008.
https://doi.org/10.3144/expresspolymlett.2011.97

Stevanović M, Pavlović V, Petković J, Filipić M, Uskoković D. ROS-inducing potential, influence of different porogens and in vitro degradation of poly (D,L-lactide-co-glycolide)-based material. in Express Polymer Letters. 2011;5(11):996-1008.
doi:10.3144/expresspolymlett.2011.97 .

Stevanović, M., Pavlović, Vladimir, Petković, J., Filipić, M., Uskoković, Dragan, "ROS-inducing potential, influence of different porogens and in vitro degradation of poly (D,L-lactide-co-glycolide)-based material" in Express Polymer Letters, 5, no. 11 (2011):996-1008,
https://doi.org/10.3144/expresspolymlett.2011.97 . .

TY  - CONF
AU  - Stevanović, Magdalena
AU  - Jevtić, Marija
AU  - Jovanović, Ivana
AU  - Pavlović, Vladimir B.
AU  - Uskoković, Dragan
PY  - 2008
UR  - http://dais.sanu.ac.rs/123456789/304
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5666
AB  - Poster presented at the 10th Conference of the Materials Research Society of Serbia - YUCOMAT 2008, Herceg Novi, Montenegro, September 8-12, 2008.
T1  - Porous, Poly (DL-Lactide-co-Glycolide)-Based Material for Biomedical Application
UR  - https://hdl.handle.net/21.15107/rcub_dais_304
ER  - 

@conference{
author = "Stevanović, Magdalena and Jevtić, Marija and Jovanović, Ivana and Pavlović, Vladimir B. and Uskoković, Dragan",
year = "2008",
abstract = "Poster presented at the 10th Conference of the Materials Research Society of Serbia - YUCOMAT 2008, Herceg Novi, Montenegro, September 8-12, 2008.",
title = "Porous, Poly (DL-Lactide-co-Glycolide)-Based Material for Biomedical Application",
url = "https://hdl.handle.net/21.15107/rcub_dais_304"
}

Stevanović, M., Jevtić, M., Jovanović, I., Pavlović, V. B.,& Uskoković, D.. (2008). Porous, Poly (DL-Lactide-co-Glycolide)-Based Material for Biomedical Application. .
https://hdl.handle.net/21.15107/rcub_dais_304

Stevanović M, Jevtić M, Jovanović I, Pavlović VB, Uskoković D. Porous, Poly (DL-Lactide-co-Glycolide)-Based Material for Biomedical Application. 2008;.
https://hdl.handle.net/21.15107/rcub_dais_304 .

Stevanović, Magdalena, Jevtić, Marija, Jovanović, Ivana, Pavlović, Vladimir B., Uskoković, Dragan, "Porous, Poly (DL-Lactide-co-Glycolide)-Based Material for Biomedical Application" (2008),
https://hdl.handle.net/21.15107/rcub_dais_304 .