TY  - JOUR
AU  - Pavlović, Vera P.
AU  - Vujancević, Jelena D.
AU  - Masković, Pavle Z.
AU  - Cirković, Jovana
AU  - Papan, Jelena M.
AU  - Kosanović, Darko
AU  - Dramicanin, Miroslav D.
AU  - Petrović, Predrag B.
AU  - Vlahović, Branislav
AU  - Pavlović, Vladimir
PY  - 2019
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4931
AB  - Titanium dioxide is a photocatalyst, known not only for its ability to oxidize organic contaminants, but also for its antimicrobial properties. In this article, significant enhancement of the antimicrobial activity of TiO2 (up to 32 times) was demonstrated after its activation by ball milling. The antimicrobial activity was analyzed for one fungal and 13 bacterial ATCC strains using the microdilution method and recording the minimum inhibitory concentration (MIC) values. In order to further investigate the correlation between the mechanical activation of TiO2 and its antimicrobial activity, the structure, morphology and phase composition of the material were studied by means of Electron Microscopy, X-ray diffraction and nitrogen adsorption-desorption measurements. UV-Vis diffuse reflectance spectra were recorded and the Kubelka-Munk function was applied to convert reflectance into the equivalent band gap energy (E-g) and, consequently, to investigate changes in the E-g value. X-ray photoelectron spectroscopy was used to analyze the influence of mechanical activation on the Ti 2p and O 1s spectra. The presented results are expected to enable the development of more sustainable and effective advanced TiO2-based materials with antimicrobial properties that could be used in numerous green technology applications.
PB  - Wiley, Hoboken
T2  - Journal of the American Ceramic Society
T1  - Structure and enhanced antimicrobial activity of mechanically activated nano TiO2
EP  - 7745
IS  - 12
SP  - 7735
VL  - 102
DO  - 10.1111/jace.16668
ER  - 

@article{
author = "Pavlović, Vera P. and Vujancević, Jelena D. and Masković, Pavle Z. and Cirković, Jovana and Papan, Jelena M. and Kosanović, Darko and Dramicanin, Miroslav D. and Petrović, Predrag B. and Vlahović, Branislav and Pavlović, Vladimir",
year = "2019",
abstract = "Titanium dioxide is a photocatalyst, known not only for its ability to oxidize organic contaminants, but also for its antimicrobial properties. In this article, significant enhancement of the antimicrobial activity of TiO2 (up to 32 times) was demonstrated after its activation by ball milling. The antimicrobial activity was analyzed for one fungal and 13 bacterial ATCC strains using the microdilution method and recording the minimum inhibitory concentration (MIC) values. In order to further investigate the correlation between the mechanical activation of TiO2 and its antimicrobial activity, the structure, morphology and phase composition of the material were studied by means of Electron Microscopy, X-ray diffraction and nitrogen adsorption-desorption measurements. UV-Vis diffuse reflectance spectra were recorded and the Kubelka-Munk function was applied to convert reflectance into the equivalent band gap energy (E-g) and, consequently, to investigate changes in the E-g value. X-ray photoelectron spectroscopy was used to analyze the influence of mechanical activation on the Ti 2p and O 1s spectra. The presented results are expected to enable the development of more sustainable and effective advanced TiO2-based materials with antimicrobial properties that could be used in numerous green technology applications.",
publisher = "Wiley, Hoboken",
journal = "Journal of the American Ceramic Society",
title = "Structure and enhanced antimicrobial activity of mechanically activated nano TiO2",
pages = "7745-7735",
number = "12",
volume = "102",
doi = "10.1111/jace.16668"
}

Pavlović, V. P., Vujancević, J. D., Masković, P. Z., Cirković, J., Papan, J. M., Kosanović, D., Dramicanin, M. D., Petrović, P. B., Vlahović, B.,& Pavlović, V.. (2019). Structure and enhanced antimicrobial activity of mechanically activated nano TiO2. in Journal of the American Ceramic Society
Wiley, Hoboken., 102(12), 7735-7745.
https://doi.org/10.1111/jace.16668

Pavlović VP, Vujancević JD, Masković PZ, Cirković J, Papan JM, Kosanović D, Dramicanin MD, Petrović PB, Vlahović B, Pavlović V. Structure and enhanced antimicrobial activity of mechanically activated nano TiO2. in Journal of the American Ceramic Society. 2019;102(12):7735-7745.
doi:10.1111/jace.16668 .

Pavlović, Vera P., Vujancević, Jelena D., Masković, Pavle Z., Cirković, Jovana, Papan, Jelena M., Kosanović, Darko, Dramicanin, Miroslav D., Petrović, Predrag B., Vlahović, Branislav, Pavlović, Vladimir, "Structure and enhanced antimicrobial activity of mechanically activated nano TiO2" in Journal of the American Ceramic Society, 102, no. 12 (2019):7735-7745,
https://doi.org/10.1111/jace.16668 . .

TY  - JOUR
AU  - Marković, Zoran M.
AU  - Jovanović, Svetlana P.
AU  - Masković, Pavle Z.
AU  - Mojsin, Marija M.
AU  - Stevanović, Milena J.
AU  - Danko, Martin
AU  - Micusik, Matej
AU  - Jovanović, Dragana J.
AU  - Kleinova, Angela
AU  - Spitalsky, Zdeno
AU  - Pavlović, Vladimir
AU  - Todorović-Marković, Biljana
PY  - 2019
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5003
AB  - Photoactive materials called photosensitizers can be used for treatment of different types of cancer in combination with light source. In this paper, we have investigated pro-oxidant and antioxidant potentials of four graphene based nanomaterials (graphene oxide-GO, graphene quantum dots-GQDs, carbon quantum dots-CQDs and N-doped carbon quantum dots-N-CQDs) depending on the presence/absence of visible light source. Structural and optical properties of these materials and their potentials for reactive oxygen species generation/quenching are investigated by applying different microscopy and spectroscopy techniques (transmission electron microscopy, FTIR, UV-Vis, photoluminescence, electron paramagnetic resonance). Results show that all types of quantum dots has pro-oxidant and antioxidant potentials whereas GO demonstrated only moderate antioxidant effect. The best free radical scavenger is CQDs sample in the absence of light. CQDs are the best singlet oxygen generator under blue light irradiation as well. To check photo-cytotoxicity of these materials, photo-cytotoxic concentrations of the GO, GQDs, CQDs and N-CQDs were determined for three cellular lines: human rhabdomyosarcoma (RD), cell line derived from human cervix carcinoma Hep2c (HeLa) and fibroblast cell line from murine (L2OB). Cytotoxicity test has indicated that all samples are much less photocytotoxic than cis-diamminedichloroplatinum (cis-DPP). The production method and doping of quantum dots affect the photodynamic activity of tested samples very much.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Photochemistry and Photobiology B-Biology
T1  - Graphene oxide size and structure pro-oxidant and antioxidant activity and photoinduced cytotoxicity relation on three cancer cell lines
VL  - 200
DO  - 10.1016/j.jphotobiol.2019.111647
ER  - 

@article{
author = "Marković, Zoran M. and Jovanović, Svetlana P. and Masković, Pavle Z. and Mojsin, Marija M. and Stevanović, Milena J. and Danko, Martin and Micusik, Matej and Jovanović, Dragana J. and Kleinova, Angela and Spitalsky, Zdeno and Pavlović, Vladimir and Todorović-Marković, Biljana",
year = "2019",
abstract = "Photoactive materials called photosensitizers can be used for treatment of different types of cancer in combination with light source. In this paper, we have investigated pro-oxidant and antioxidant potentials of four graphene based nanomaterials (graphene oxide-GO, graphene quantum dots-GQDs, carbon quantum dots-CQDs and N-doped carbon quantum dots-N-CQDs) depending on the presence/absence of visible light source. Structural and optical properties of these materials and their potentials for reactive oxygen species generation/quenching are investigated by applying different microscopy and spectroscopy techniques (transmission electron microscopy, FTIR, UV-Vis, photoluminescence, electron paramagnetic resonance). Results show that all types of quantum dots has pro-oxidant and antioxidant potentials whereas GO demonstrated only moderate antioxidant effect. The best free radical scavenger is CQDs sample in the absence of light. CQDs are the best singlet oxygen generator under blue light irradiation as well. To check photo-cytotoxicity of these materials, photo-cytotoxic concentrations of the GO, GQDs, CQDs and N-CQDs were determined for three cellular lines: human rhabdomyosarcoma (RD), cell line derived from human cervix carcinoma Hep2c (HeLa) and fibroblast cell line from murine (L2OB). Cytotoxicity test has indicated that all samples are much less photocytotoxic than cis-diamminedichloroplatinum (cis-DPP). The production method and doping of quantum dots affect the photodynamic activity of tested samples very much.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Photochemistry and Photobiology B-Biology",
title = "Graphene oxide size and structure pro-oxidant and antioxidant activity and photoinduced cytotoxicity relation on three cancer cell lines",
volume = "200",
doi = "10.1016/j.jphotobiol.2019.111647"
}

Marković, Z. M., Jovanović, S. P., Masković, P. Z., Mojsin, M. M., Stevanović, M. J., Danko, M., Micusik, M., Jovanović, D. J., Kleinova, A., Spitalsky, Z., Pavlović, V.,& Todorović-Marković, B.. (2019). Graphene oxide size and structure pro-oxidant and antioxidant activity and photoinduced cytotoxicity relation on three cancer cell lines. in Journal of Photochemistry and Photobiology B-Biology
Elsevier Science Sa, Lausanne., 200.
https://doi.org/10.1016/j.jphotobiol.2019.111647

Marković ZM, Jovanović SP, Masković PZ, Mojsin MM, Stevanović MJ, Danko M, Micusik M, Jovanović DJ, Kleinova A, Spitalsky Z, Pavlović V, Todorović-Marković B. Graphene oxide size and structure pro-oxidant and antioxidant activity and photoinduced cytotoxicity relation on three cancer cell lines. in Journal of Photochemistry and Photobiology B-Biology. 2019;200.
doi:10.1016/j.jphotobiol.2019.111647 .

Marković, Zoran M., Jovanović, Svetlana P., Masković, Pavle Z., Mojsin, Marija M., Stevanović, Milena J., Danko, Martin, Micusik, Matej, Jovanović, Dragana J., Kleinova, Angela, Spitalsky, Zdeno, Pavlović, Vladimir, Todorović-Marković, Biljana, "Graphene oxide size and structure pro-oxidant and antioxidant activity and photoinduced cytotoxicity relation on three cancer cell lines" in Journal of Photochemistry and Photobiology B-Biology, 200 (2019),
https://doi.org/10.1016/j.jphotobiol.2019.111647 . .

TY  - JOUR
AU  - Marković, Zoran M.
AU  - Jovanović, Svetlana P.
AU  - Masković, Pavle Z.
AU  - Danko, Martin
AU  - Micusik, Matej
AU  - Pavlović, Vladimir
AU  - Milivojević, Dušan D.
AU  - Kleinova, Angela
AU  - Spitalsky, Zdeno
AU  - Todorović-Marković, Biljana
PY  - 2018
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4630
AB  - Due to controversial reports concerning antibacterial activity of different graphene based materials it is very important to investigate their antibacterial action on a wide range of Gram-positive and Gram-negative bacteria. In this paper we have investigated the structure induced phototoxic antibacterial activity of four types of graphene based materials: graphene oxide (GO), graphene quantum dots (GQDs), carbon quantum dots (CQDs) and nitrogen doped carbon quantum dots (N-CQDs). Antibacterial activity was tested on 19 types of bacteria. It is found that nanometer-size CQDs and N-CQDs are the most potent agents whereas micrometer-size GO has very poor antibacterial activity. Electron paramagnetic resonance measurements confirmed photodynamic production of singlet oxygen for all types of used quantum dots. Detailed analysis has shown that N-CQDs are an excellent photodynamic antibacterial agent for treatment of bacterial infections induced by Enterobacter aerogenes (E. aerogenes), Proteus mirabilis (P. mirabilis), Staphylococcus saprophyticus (S. saprophyticus), Listeria monocytogenes (L. monocytogenes), Salmonella typhimurium (S. typhimurium) and Klebsiella pneumoniae.
PB  - Royal Soc Chemistry, Cambridge
T2  - RSC Advances
T1  - Photo-induced antibacterial activity of four graphene based nanomaterials on a wide range of bacteria
EP  - 31347
IS  - 55
SP  - 31337
VL  - 8
DO  - 10.1039/c8ra04664f
ER  - 

@article{
author = "Marković, Zoran M. and Jovanović, Svetlana P. and Masković, Pavle Z. and Danko, Martin and Micusik, Matej and Pavlović, Vladimir and Milivojević, Dušan D. and Kleinova, Angela and Spitalsky, Zdeno and Todorović-Marković, Biljana",
year = "2018",
abstract = "Due to controversial reports concerning antibacterial activity of different graphene based materials it is very important to investigate their antibacterial action on a wide range of Gram-positive and Gram-negative bacteria. In this paper we have investigated the structure induced phototoxic antibacterial activity of four types of graphene based materials: graphene oxide (GO), graphene quantum dots (GQDs), carbon quantum dots (CQDs) and nitrogen doped carbon quantum dots (N-CQDs). Antibacterial activity was tested on 19 types of bacteria. It is found that nanometer-size CQDs and N-CQDs are the most potent agents whereas micrometer-size GO has very poor antibacterial activity. Electron paramagnetic resonance measurements confirmed photodynamic production of singlet oxygen for all types of used quantum dots. Detailed analysis has shown that N-CQDs are an excellent photodynamic antibacterial agent for treatment of bacterial infections induced by Enterobacter aerogenes (E. aerogenes), Proteus mirabilis (P. mirabilis), Staphylococcus saprophyticus (S. saprophyticus), Listeria monocytogenes (L. monocytogenes), Salmonella typhimurium (S. typhimurium) and Klebsiella pneumoniae.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "RSC Advances",
title = "Photo-induced antibacterial activity of four graphene based nanomaterials on a wide range of bacteria",
pages = "31347-31337",
number = "55",
volume = "8",
doi = "10.1039/c8ra04664f"
}

Marković, Z. M., Jovanović, S. P., Masković, P. Z., Danko, M., Micusik, M., Pavlović, V., Milivojević, D. D., Kleinova, A., Spitalsky, Z.,& Todorović-Marković, B.. (2018). Photo-induced antibacterial activity of four graphene based nanomaterials on a wide range of bacteria. in RSC Advances
Royal Soc Chemistry, Cambridge., 8(55), 31337-31347.
https://doi.org/10.1039/c8ra04664f

Marković ZM, Jovanović SP, Masković PZ, Danko M, Micusik M, Pavlović V, Milivojević DD, Kleinova A, Spitalsky Z, Todorović-Marković B. Photo-induced antibacterial activity of four graphene based nanomaterials on a wide range of bacteria. in RSC Advances. 2018;8(55):31337-31347.
doi:10.1039/c8ra04664f .

Marković, Zoran M., Jovanović, Svetlana P., Masković, Pavle Z., Danko, Martin, Micusik, Matej, Pavlović, Vladimir, Milivojević, Dušan D., Kleinova, Angela, Spitalsky, Zdeno, Todorović-Marković, Biljana, "Photo-induced antibacterial activity of four graphene based nanomaterials on a wide range of bacteria" in RSC Advances, 8, no. 55 (2018):31337-31347,
https://doi.org/10.1039/c8ra04664f . .