TY  - JOUR
AU  - Stefanović, Ivan S.
AU  - Marković, Bojana M.
AU  - Nastasović, Aleksandra B.
AU  - Vuković, Zorica M.
AU  - Dapčević, Aleksandra
AU  - Pavlović, Vladimir B.
PY  - 2022
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6117
AB  - The impact of the type and amounts of nanofiller on the features of the glycidyl methacrylate-co-ethylene glycol dimethacrylate (GMA-co-EGDMA)/organomodified montmorillonite (OMt) nanocomposites that were prepared by in situ radical suspension polymerization, was examined. Cloisite 30B and Cloisite 25A were used in this study as nanofillers, in amounts of 2 and 10 wt.%. The structure, morphology, thermal stability and porosity of the initial GMA-co-EGDMA copolymer and their nanocomposites were examined by ATR-FTIR analysis, wide angle X-ray diffraction (XRD), scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), transmission electron microscopy (TEM), thermogravimetric analysis (TG) and mercury porosimetry. It has been established that both clay nanofillers were successfully incorporated into the structure of the initial copolymer, simultaneously on their surface and also on cross-sectional area. Prepared samples with 2 wt.% have predominantly exfoliated, while samples with 10 wt.% have some tactoids-aggregates structure of the OMt layers. Thermogravimetric analysis revealed that after ~ 30 % of degradation, all nanocomposites become more thermal stable than the initial copolymer. The obtained results indicate that porosity parameters can be easily modified with the addition of clay nanofillers and thus prepared nanocomposites adjusted to specific purposes. © 2022 Authors. Published by association for ETRAN Society.
T2  - Science of Sintering
T2  - Science of Sintering
T1  - Preparation and Characterization of Novel Glycidyl Methacrylate/Clay Nanocomposites
EP  - 200
IS  - 2
SP  - 189
VL  - 54
DO  - 10.2298/SOS2202189S
ER  - 

@article{
author = "Stefanović, Ivan S. and Marković, Bojana M. and Nastasović, Aleksandra B. and Vuković, Zorica M. and Dapčević, Aleksandra and Pavlović, Vladimir B.",
year = "2022",
abstract = "The impact of the type and amounts of nanofiller on the features of the glycidyl methacrylate-co-ethylene glycol dimethacrylate (GMA-co-EGDMA)/organomodified montmorillonite (OMt) nanocomposites that were prepared by in situ radical suspension polymerization, was examined. Cloisite 30B and Cloisite 25A were used in this study as nanofillers, in amounts of 2 and 10 wt.%. The structure, morphology, thermal stability and porosity of the initial GMA-co-EGDMA copolymer and their nanocomposites were examined by ATR-FTIR analysis, wide angle X-ray diffraction (XRD), scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), transmission electron microscopy (TEM), thermogravimetric analysis (TG) and mercury porosimetry. It has been established that both clay nanofillers were successfully incorporated into the structure of the initial copolymer, simultaneously on their surface and also on cross-sectional area. Prepared samples with 2 wt.% have predominantly exfoliated, while samples with 10 wt.% have some tactoids-aggregates structure of the OMt layers. Thermogravimetric analysis revealed that after ~ 30 % of degradation, all nanocomposites become more thermal stable than the initial copolymer. The obtained results indicate that porosity parameters can be easily modified with the addition of clay nanofillers and thus prepared nanocomposites adjusted to specific purposes. © 2022 Authors. Published by association for ETRAN Society.",
journal = "Science of Sintering, Science of Sintering",
title = "Preparation and Characterization of Novel Glycidyl Methacrylate/Clay Nanocomposites",
pages = "200-189",
number = "2",
volume = "54",
doi = "10.2298/SOS2202189S"
}

Stefanović, I. S., Marković, B. M., Nastasović, A. B., Vuković, Z. M., Dapčević, A.,& Pavlović, V. B.. (2022). Preparation and Characterization of Novel Glycidyl Methacrylate/Clay Nanocomposites. in Science of Sintering, 54(2), 189-200.
https://doi.org/10.2298/SOS2202189S

Stefanović IS, Marković BM, Nastasović AB, Vuković ZM, Dapčević A, Pavlović VB. Preparation and Characterization of Novel Glycidyl Methacrylate/Clay Nanocomposites. in Science of Sintering. 2022;54(2):189-200.
doi:10.2298/SOS2202189S .

Stefanović, Ivan S., Marković, Bojana M., Nastasović, Aleksandra B., Vuković, Zorica M., Dapčević, Aleksandra, Pavlović, Vladimir B., "Preparation and Characterization of Novel Glycidyl Methacrylate/Clay Nanocomposites" in Science of Sintering, 54, no. 2 (2022):189-200,
https://doi.org/10.2298/SOS2202189S . .

TY  - JOUR
AU  - Kepić, D.P.
AU  - Kleut, D.N.
AU  - Marković, Z.M.
AU  - Bajuk-Bogdanović, D.V.
AU  - Pavlović, V.B.
AU  - Krmpot, A. J.
AU  - Lekić, M.M.
AU  - Jovanović, D.J.
AU  - Todorović-Marković, B.M.
PY  - 2021
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5809
AB  - Graphene is an excellent material to anchor metal nanoparticles due to its large surface area. In this paper, we report the use of electrochemically exfoliated graphene as support to anchor gold nanoparticles (Au NPs). Au NPs are synthesized via the reduction of chloroauric acid under gamma irradiation at low doses of 1, 5, and 10 kGy and directly deposited onto the graphene surface, making this procedure simple and fast. Good water dispersibility of exfoliated graphene, due to the presence of oxygen-containing functional groups in the structure of graphene, provides long-term stability of Au NPs - graphene composite dispersions. The majority of the Au NPs obtained by this method have sizes of up to 40 nm, while the increase in the applied dose leads to an increase in the amount of smaller nanoparticles. The increase of temperature of the prepared composite material upon irradiation with an 808 nm continuous wave laser was monitored. All samples show a temperature increase between 21.5 and 25.6 °C for 10 min of the laser exposure, which indicates that Au NPs - graphene composite can effectively be used in photothermal treatment for cancer therapy.
PB  - Elsevier Inc.
T2  - Materials Characterization
T1  - One-step preparation of gold nanoparticles - exfoliated graphene composite by gamma irradiation at low doses for photothermal therapy applications
SP  - 110994
VL  - 173
DO  - 10.1016/j.matchar.2021.110944
ER  - 

@article{
author = "Kepić, D.P. and Kleut, D.N. and Marković, Z.M. and Bajuk-Bogdanović, D.V. and Pavlović, V.B. and Krmpot, A. J. and Lekić, M.M. and Jovanović, D.J. and Todorović-Marković, B.M.",
year = "2021",
abstract = "Graphene is an excellent material to anchor metal nanoparticles due to its large surface area. In this paper, we report the use of electrochemically exfoliated graphene as support to anchor gold nanoparticles (Au NPs). Au NPs are synthesized via the reduction of chloroauric acid under gamma irradiation at low doses of 1, 5, and 10 kGy and directly deposited onto the graphene surface, making this procedure simple and fast. Good water dispersibility of exfoliated graphene, due to the presence of oxygen-containing functional groups in the structure of graphene, provides long-term stability of Au NPs - graphene composite dispersions. The majority of the Au NPs obtained by this method have sizes of up to 40 nm, while the increase in the applied dose leads to an increase in the amount of smaller nanoparticles. The increase of temperature of the prepared composite material upon irradiation with an 808 nm continuous wave laser was monitored. All samples show a temperature increase between 21.5 and 25.6 °C for 10 min of the laser exposure, which indicates that Au NPs - graphene composite can effectively be used in photothermal treatment for cancer therapy.",
publisher = "Elsevier Inc.",
journal = "Materials Characterization",
title = "One-step preparation of gold nanoparticles - exfoliated graphene composite by gamma irradiation at low doses for photothermal therapy applications",
pages = "110994",
volume = "173",
doi = "10.1016/j.matchar.2021.110944"
}

Kepić, D.P., Kleut, D.N., Marković, Z.M., Bajuk-Bogdanović, D.V., Pavlović, V.B., Krmpot, A. J., Lekić, M.M., Jovanović, D.J.,& Todorović-Marković, B.M.. (2021). One-step preparation of gold nanoparticles - exfoliated graphene composite by gamma irradiation at low doses for photothermal therapy applications. in Materials Characterization
Elsevier Inc.., 173, 110994.
https://doi.org/10.1016/j.matchar.2021.110944

Kepić D, Kleut D, Marković Z, Bajuk-Bogdanović D, Pavlović V, Krmpot AJ, Lekić M, Jovanović D, Todorović-Marković B. One-step preparation of gold nanoparticles - exfoliated graphene composite by gamma irradiation at low doses for photothermal therapy applications. in Materials Characterization. 2021;173:110994.
doi:10.1016/j.matchar.2021.110944 .

Kepić, D.P., Kleut, D.N., Marković, Z.M., Bajuk-Bogdanović, D.V., Pavlović, V.B., Krmpot, A. J., Lekić, M.M., Jovanović, D.J., Todorović-Marković, B.M., "One-step preparation of gold nanoparticles - exfoliated graphene composite by gamma irradiation at low doses for photothermal therapy applications" in Materials Characterization, 173 (2021):110994,
https://doi.org/10.1016/j.matchar.2021.110944 . .

TY  - JOUR
AU  - Marković, Z.M.
AU  - Labudová, M.
AU  - Danko, Martin
AU  - Matijašević, D.
AU  - Mičušík, M.
AU  - Nádaždy, V.
AU  - Kováčová, M.
AU  - Kleinova, Angela
AU  - Špitalský, Z.
AU  - Pavlović, Vladimir
AU  - Milivojević, Dušan D.
AU  - Medić, Mira
AU  - Todorović-Marković, B.M.
PY  - 2020
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5422
AB  - The addition of heteroatoms to pristine carbon quantum dots (CQDs) change their structure and optical properties. In this study, fluorine (F)- and chlorine (Cl)-doped CQDs are prepared by the one-step green hydrothermal route from sodium fluoride, sodium chloride, urea, and citric acid as the starting precursors. Microscopy analysis reveals that the average size of these quantum dots is 5 ± 2 nm, whereas the chemical study shows the existence of C-F and C-Cl bonds. The produced F- and Cl-doped CQDs have fluorescence quantum yields of 0.151 and 0.284, respectively, at an excitation wavelength of 450 nm. Charge transfer resistance of F- and Cl-doped CQDs films is 2 orders of magnitude higher than in the pristine CQD films. Transport band gap of the doped CQDs is 2 eV bigger than that of pristine CQDs. Radical scavenging activity shows very good antioxidant activity of doped CQDs. Antibacterial testing reveals poor antibacterial activity against Staphylococcus aureus and Escherichia coli. The F- and Cl-doped CQDs are successfully used as fluorescent probes for cell imaging as shown by confocal microscopy.
PB  - American Chemical Society
T2  - ACS Sustainable Chemistry and Engineering
T1  - Highly Efficient Antioxidant F- And Cl-Doped Carbon Quantum Dots for Bioimaging
DO  - 10.1021/acssuschemeng.0c06260
ER  - 

@article{
author = "Marković, Z.M. and Labudová, M. and Danko, Martin and Matijašević, D. and Mičušík, M. and Nádaždy, V. and Kováčová, M. and Kleinova, Angela and Špitalský, Z. and Pavlović, Vladimir and Milivojević, Dušan D. and Medić, Mira and Todorović-Marković, B.M.",
year = "2020",
abstract = "The addition of heteroatoms to pristine carbon quantum dots (CQDs) change their structure and optical properties. In this study, fluorine (F)- and chlorine (Cl)-doped CQDs are prepared by the one-step green hydrothermal route from sodium fluoride, sodium chloride, urea, and citric acid as the starting precursors. Microscopy analysis reveals that the average size of these quantum dots is 5 ± 2 nm, whereas the chemical study shows the existence of C-F and C-Cl bonds. The produced F- and Cl-doped CQDs have fluorescence quantum yields of 0.151 and 0.284, respectively, at an excitation wavelength of 450 nm. Charge transfer resistance of F- and Cl-doped CQDs films is 2 orders of magnitude higher than in the pristine CQD films. Transport band gap of the doped CQDs is 2 eV bigger than that of pristine CQDs. Radical scavenging activity shows very good antioxidant activity of doped CQDs. Antibacterial testing reveals poor antibacterial activity against Staphylococcus aureus and Escherichia coli. The F- and Cl-doped CQDs are successfully used as fluorescent probes for cell imaging as shown by confocal microscopy.",
publisher = "American Chemical Society",
journal = "ACS Sustainable Chemistry and Engineering",
title = "Highly Efficient Antioxidant F- And Cl-Doped Carbon Quantum Dots for Bioimaging",
doi = "10.1021/acssuschemeng.0c06260"
}

Marković, Z.M., Labudová, M., Danko, M., Matijašević, D., Mičušík, M., Nádaždy, V., Kováčová, M., Kleinova, A., Špitalský, Z., Pavlović, V., Milivojević, D. D., Medić, M.,& Todorović-Marković, B.M.. (2020). Highly Efficient Antioxidant F- And Cl-Doped Carbon Quantum Dots for Bioimaging. in ACS Sustainable Chemistry and Engineering
American Chemical Society..
https://doi.org/10.1021/acssuschemeng.0c06260

Marković Z, Labudová M, Danko M, Matijašević D, Mičušík M, Nádaždy V, Kováčová M, Kleinova A, Špitalský Z, Pavlović V, Milivojević DD, Medić M, Todorović-Marković B. Highly Efficient Antioxidant F- And Cl-Doped Carbon Quantum Dots for Bioimaging. in ACS Sustainable Chemistry and Engineering. 2020;.
doi:10.1021/acssuschemeng.0c06260 .

Marković, Z.M., Labudová, M., Danko, Martin, Matijašević, D., Mičušík, M., Nádaždy, V., Kováčová, M., Kleinova, Angela, Špitalský, Z., Pavlović, Vladimir, Milivojević, Dušan D., Medić, Mira, Todorović-Marković, B.M., "Highly Efficient Antioxidant F- And Cl-Doped Carbon Quantum Dots for Bioimaging" in ACS Sustainable Chemistry and Engineering (2020),
https://doi.org/10.1021/acssuschemeng.0c06260 . .