TY  - JOUR
AU  - Marković, Zoran M.
AU  - Kováčová, Mária
AU  - Mičušik, Matej
AU  - Danko, Martin
AU  - Švajdlenkova, Helena
AU  - Kleinova, Angela
AU  - Humpoliček, Petr
AU  - Lehocky, Marian
AU  - Todorović-Marković, Biljana
AU  - Špitalsky, Zdeno
PY  - 2019
UR  - http://doi.wiley.com/10.1002/app.47283
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8445
AB  - Various types of bacteria inhabit many surfaces thus causing problems which can have very strong impact on human health. Here we present a study of photophysical, mechanical, and antibacterial properties of curcumin/polyurethane nanocomposites prepared by swell-encapsulation-shrink method. The prepared nanocomposites have been characterized for degree of swelling, surface morphology, mechanical properties, chemical contents, photoluminescence, hydrophobicity, potentials for singlet oxygen generation, and antibacterial activity. Dynamic mechanical analysis has shown slight changes of glass temperature of curcumin/polyurethane nanocomposites due to blue light irradiation. It was found that nanocomposites have very strong photoluminescence, become photoactive upon blue light irradiation at 470 nm and generate singlet oxygen. Conducted antibacterial tests have shown very strong activity of these nanocomposites especially toward Escherichia coli. These bacteria strains have been eliminated completely only after 1 h irradiation by blue light. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 47283. © 2018 Wiley Periodicals, Inc.
T2  - Journal of Applied Polymer Science
T1  - Structural, mechanical, and antibacterial features of curcumin/polyurethane nanocomposites
VL  - 136
IS  - 13
SP  - 47283
DO  - 10.1002/app.47283
ER  - 

@article{
author = "Marković, Zoran M. and Kováčová, Mária and Mičušik, Matej and Danko, Martin and Švajdlenkova, Helena and Kleinova, Angela and Humpoliček, Petr and Lehocky, Marian and Todorović-Marković, Biljana and Špitalsky, Zdeno",
year = "2019",
abstract = "Various types of bacteria inhabit many surfaces thus causing problems which can have very strong impact on human health. Here we present a study of photophysical, mechanical, and antibacterial properties of curcumin/polyurethane nanocomposites prepared by swell-encapsulation-shrink method. The prepared nanocomposites have been characterized for degree of swelling, surface morphology, mechanical properties, chemical contents, photoluminescence, hydrophobicity, potentials for singlet oxygen generation, and antibacterial activity. Dynamic mechanical analysis has shown slight changes of glass temperature of curcumin/polyurethane nanocomposites due to blue light irradiation. It was found that nanocomposites have very strong photoluminescence, become photoactive upon blue light irradiation at 470 nm and generate singlet oxygen. Conducted antibacterial tests have shown very strong activity of these nanocomposites especially toward Escherichia coli. These bacteria strains have been eliminated completely only after 1 h irradiation by blue light. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 47283. © 2018 Wiley Periodicals, Inc.",
journal = "Journal of Applied Polymer Science",
title = "Structural, mechanical, and antibacterial features of curcumin/polyurethane nanocomposites",
volume = "136",
number = "13",
pages = "47283",
doi = "10.1002/app.47283"
}

Marković, Z. M., Kováčová, M., Mičušik, M., Danko, M., Švajdlenkova, H., Kleinova, A., Humpoliček, P., Lehocky, M., Todorović-Marković, B.,& Špitalsky, Z.. (2019). Structural, mechanical, and antibacterial features of curcumin/polyurethane nanocomposites. in Journal of Applied Polymer Science, 136(13), 47283.
https://doi.org/10.1002/app.47283

Marković ZM, Kováčová M, Mičušik M, Danko M, Švajdlenkova H, Kleinova A, Humpoliček P, Lehocky M, Todorović-Marković B, Špitalsky Z. Structural, mechanical, and antibacterial features of curcumin/polyurethane nanocomposites. in Journal of Applied Polymer Science. 2019;136(13):47283.
doi:10.1002/app.47283 .

Marković, Zoran M., Kováčová, Mária, Mičušik, Matej, Danko, Martin, Švajdlenkova, Helena, Kleinova, Angela, Humpoliček, Petr, Lehocky, Marian, Todorović-Marković, Biljana, Špitalsky, Zdeno, "Structural, mechanical, and antibacterial features of curcumin/polyurethane nanocomposites" in Journal of Applied Polymer Science, 136, no. 13 (2019):47283,
https://doi.org/10.1002/app.47283 . .

TY  - CONF
AU  - Kravić-Stevović, Tamara K.
AU  - Martinović, Tamara
AU  - Ćirić, Darko
AU  - Paunović, Verica G.
AU  - Ristić, Biljana
AU  - Marković, Zoran M.
AU  - Todorović-Marković, Biljana
AU  - Kosić, Milica
AU  - Prekodravac, Jovana
AU  - Micusik, Matej
AU  - Spitalsky, Zdeno
AU  - Trajković, Vladimir S.
AU  - Harhaji-Trajković, Ljubica M.
AU  - Bumbaširević, Vladimir Ž.
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8740
PB  - Belgrade : Serbian Academy of Sciences and Arts
C3  - Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia
T1  - Transmission Electron Microscopy in Evaluation of Curcumin Nanoparticles Cellular Uptake
SP  - 266
EP  - 268
UR  - https://hdl.handle.net/21.15107/rcub_vinar_8740
ER  - 

@conference{
author = "Kravić-Stevović, Tamara K. and Martinović, Tamara and Ćirić, Darko and Paunović, Verica G. and Ristić, Biljana and Marković, Zoran M. and Todorović-Marković, Biljana and Kosić, Milica and Prekodravac, Jovana and Micusik, Matej and Spitalsky, Zdeno and Trajković, Vladimir S. and Harhaji-Trajković, Ljubica M. and Bumbaširević, Vladimir Ž.",
year = "2018",
publisher = "Belgrade : Serbian Academy of Sciences and Arts",
journal = "Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia",
title = "Transmission Electron Microscopy in Evaluation of Curcumin Nanoparticles Cellular Uptake",
pages = "266-268",
url = "https://hdl.handle.net/21.15107/rcub_vinar_8740"
}

Kravić-Stevović, T. K., Martinović, T., Ćirić, D., Paunović, V. G., Ristić, B., Marković, Z. M., Todorović-Marković, B., Kosić, M., Prekodravac, J., Micusik, M., Spitalsky, Z., Trajković, V. S., Harhaji-Trajković, L. M.,& Bumbaširević, V. Ž.. (2018). Transmission Electron Microscopy in Evaluation of Curcumin Nanoparticles Cellular Uptake. in Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia
Belgrade : Serbian Academy of Sciences and Arts., 266-268.
https://hdl.handle.net/21.15107/rcub_vinar_8740

Kravić-Stevović TK, Martinović T, Ćirić D, Paunović VG, Ristić B, Marković ZM, Todorović-Marković B, Kosić M, Prekodravac J, Micusik M, Spitalsky Z, Trajković VS, Harhaji-Trajković LM, Bumbaširević VŽ. Transmission Electron Microscopy in Evaluation of Curcumin Nanoparticles Cellular Uptake. in Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia. 2018;:266-268.
https://hdl.handle.net/21.15107/rcub_vinar_8740 .

Kravić-Stevović, Tamara K., Martinović, Tamara, Ćirić, Darko, Paunović, Verica G., Ristić, Biljana, Marković, Zoran M., Todorović-Marković, Biljana, Kosić, Milica, Prekodravac, Jovana, Micusik, Matej, Spitalsky, Zdeno, Trajković, Vladimir S., Harhaji-Trajković, Ljubica M., Bumbaširević, Vladimir Ž., "Transmission Electron Microscopy in Evaluation of Curcumin Nanoparticles Cellular Uptake" in Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia (2018):266-268,
https://hdl.handle.net/21.15107/rcub_vinar_8740 .

TY  - JOUR
AU  - Prekodravac, Jovana
AU  - Marković, Zoran M.
AU  - Jovanović, Svetlana P.
AU  - Holclajtner-Antunović, Ivanka D.
AU  - Kepić, Dejan P.
AU  - Budimir, Milica
AU  - Todorović-Marković, Biljana
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1420
AB  - Graphene as a new material is in the spotlight due to its extraordinary properties and wide range of potential applications. Chemical vapour deposition, as a method for graphene synthesis from gaseous hydrocarbon sources has great promises for large-scale graphene synthesis. However, for such grow high temperatures of 800-1000 degrees C are typically required. Here we demonstrate synthesis of single-layer and bi-layer graphene thin films of approximately 10,m in size by rapid thermal annealing process at low annealing temperature such as 600 degrees C. Synthesis was performed on copper foil from graphene quantum dots and fullerenol as solid carbon sources at different concentrations. Raman spectroscopy study has shown that the number of grown graphene layers depends on the carbon source concentration. The quality of formed graphene layers withal depends on the carbon source and its concentration, whereby graphene from graphene quantum dots had better quality. (C) 2016 Elsevier Ltd. All rights reserved.
T2  - Materials Research Bulletin
T1  - Graphene quantum dots and fullerenol as new carbon sources for single-layer and bi-layer graphene synthesis by rapid thermal annealing method
VL  - 88
SP  - 114
EP  - 120
DO  - 10.1016/j.materresbull.2016.12.018
ER  - 

@article{
author = "Prekodravac, Jovana and Marković, Zoran M. and Jovanović, Svetlana P. and Holclajtner-Antunović, Ivanka D. and Kepić, Dejan P. and Budimir, Milica and Todorović-Marković, Biljana",
year = "2017",
abstract = "Graphene as a new material is in the spotlight due to its extraordinary properties and wide range of potential applications. Chemical vapour deposition, as a method for graphene synthesis from gaseous hydrocarbon sources has great promises for large-scale graphene synthesis. However, for such grow high temperatures of 800-1000 degrees C are typically required. Here we demonstrate synthesis of single-layer and bi-layer graphene thin films of approximately 10,m in size by rapid thermal annealing process at low annealing temperature such as 600 degrees C. Synthesis was performed on copper foil from graphene quantum dots and fullerenol as solid carbon sources at different concentrations. Raman spectroscopy study has shown that the number of grown graphene layers depends on the carbon source concentration. The quality of formed graphene layers withal depends on the carbon source and its concentration, whereby graphene from graphene quantum dots had better quality. (C) 2016 Elsevier Ltd. All rights reserved.",
journal = "Materials Research Bulletin",
title = "Graphene quantum dots and fullerenol as new carbon sources for single-layer and bi-layer graphene synthesis by rapid thermal annealing method",
volume = "88",
pages = "114-120",
doi = "10.1016/j.materresbull.2016.12.018"
}

Prekodravac, J., Marković, Z. M., Jovanović, S. P., Holclajtner-Antunović, I. D., Kepić, D. P., Budimir, M.,& Todorović-Marković, B.. (2017). Graphene quantum dots and fullerenol as new carbon sources for single-layer and bi-layer graphene synthesis by rapid thermal annealing method. in Materials Research Bulletin, 88, 114-120.
https://doi.org/10.1016/j.materresbull.2016.12.018

Prekodravac J, Marković ZM, Jovanović SP, Holclajtner-Antunović ID, Kepić DP, Budimir M, Todorović-Marković B. Graphene quantum dots and fullerenol as new carbon sources for single-layer and bi-layer graphene synthesis by rapid thermal annealing method. in Materials Research Bulletin. 2017;88:114-120.
doi:10.1016/j.materresbull.2016.12.018 .

Prekodravac, Jovana, Marković, Zoran M., Jovanović, Svetlana P., Holclajtner-Antunović, Ivanka D., Kepić, Dejan P., Budimir, Milica, Todorović-Marković, Biljana, "Graphene quantum dots and fullerenol as new carbon sources for single-layer and bi-layer graphene synthesis by rapid thermal annealing method" in Materials Research Bulletin, 88 (2017):114-120,
https://doi.org/10.1016/j.materresbull.2016.12.018 . .

TY  - JOUR
AU  - Jovanović, Svetlana P.
AU  - Marković, Zoran M.
AU  - Syrgiannis, Zois
AU  - Dramićanin, Miroslav
AU  - Arcudi, Francesca
AU  - La Parola, Valeria
AU  - Budimir, Milica
AU  - Todorović-Marković, Biljana
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1622
AB  - Different approaches for enhancement of the graphene quantum dots (GQDs) photoluminescence have been developed lately. We report modified electrochemical procedure for GQDs synthesis. Graphitic rods were thermal annealing at 1700 degrees C in vacuum and used for electrochemical quantum dots synthesis. We found that the modified GQDs (GQDs-1700) consist of two while in the structure of pristine (p-GQDs) three graphene layers are measured. The main structural difference between GQDs is the increased structural disorder, caused by a higher amount of the oxygen containing functional groups in the structure of GQDs-1700. The photoluminescence of GQDs-1700 is 4 times more intense, red shifted and with doubled Quantum Yield compared to p-GQDs. In addition, the changes in electrochemical behavior of GQDs are observed: the higher capacitance was noticed if GQDs posses more reducible functional groups, such as peroxyl, aldehyde and epoxy groups while increase in keto functional groups leads to the lower capacitance. (C) 2017 Elsevier Ltd. All rights reserved.
T2  - Materials Research Bulletin
T1  - Enhancing photoluminescence of graphene quantum dots by thermal annealing of the graphite precursor
VL  - 93
SP  - 183
EP  - 193
DO  - 10.1016/j.materresbull.2017.04.052
ER  - 

@article{
author = "Jovanović, Svetlana P. and Marković, Zoran M. and Syrgiannis, Zois and Dramićanin, Miroslav and Arcudi, Francesca and La Parola, Valeria and Budimir, Milica and Todorović-Marković, Biljana",
year = "2017",
abstract = "Different approaches for enhancement of the graphene quantum dots (GQDs) photoluminescence have been developed lately. We report modified electrochemical procedure for GQDs synthesis. Graphitic rods were thermal annealing at 1700 degrees C in vacuum and used for electrochemical quantum dots synthesis. We found that the modified GQDs (GQDs-1700) consist of two while in the structure of pristine (p-GQDs) three graphene layers are measured. The main structural difference between GQDs is the increased structural disorder, caused by a higher amount of the oxygen containing functional groups in the structure of GQDs-1700. The photoluminescence of GQDs-1700 is 4 times more intense, red shifted and with doubled Quantum Yield compared to p-GQDs. In addition, the changes in electrochemical behavior of GQDs are observed: the higher capacitance was noticed if GQDs posses more reducible functional groups, such as peroxyl, aldehyde and epoxy groups while increase in keto functional groups leads to the lower capacitance. (C) 2017 Elsevier Ltd. All rights reserved.",
journal = "Materials Research Bulletin",
title = "Enhancing photoluminescence of graphene quantum dots by thermal annealing of the graphite precursor",
volume = "93",
pages = "183-193",
doi = "10.1016/j.materresbull.2017.04.052"
}

Jovanović, S. P., Marković, Z. M., Syrgiannis, Z., Dramićanin, M., Arcudi, F., La Parola, V., Budimir, M.,& Todorović-Marković, B.. (2017). Enhancing photoluminescence of graphene quantum dots by thermal annealing of the graphite precursor. in Materials Research Bulletin, 93, 183-193.
https://doi.org/10.1016/j.materresbull.2017.04.052

Jovanović SP, Marković ZM, Syrgiannis Z, Dramićanin M, Arcudi F, La Parola V, Budimir M, Todorović-Marković B. Enhancing photoluminescence of graphene quantum dots by thermal annealing of the graphite precursor. in Materials Research Bulletin. 2017;93:183-193.
doi:10.1016/j.materresbull.2017.04.052 .

Jovanović, Svetlana P., Marković, Zoran M., Syrgiannis, Zois, Dramićanin, Miroslav, Arcudi, Francesca, La Parola, Valeria, Budimir, Milica, Todorović-Marković, Biljana, "Enhancing photoluminescence of graphene quantum dots by thermal annealing of the graphite precursor" in Materials Research Bulletin, 93 (2017):183-193,
https://doi.org/10.1016/j.materresbull.2017.04.052 . .

TY  - JOUR
AU  - Marković, Zoran M.
AU  - Kepić, Dejan P.
AU  - Matijašević, Danka M.
AU  - Pavlović, Vladimir B.
AU  - Jovanović, Svetlana P.
AU  - Stanković, Nenad K.
AU  - Milivojević, Dušan
AU  - Špitalsky, Zdenko
AU  - Holclajtner-Antunović, Ivanka D.
AU  - Bajuk-Bogdanović, Danica V.
AU  - Nikšić, Miomir P.
AU  - Todorović-Marković, Biljana
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1650
AB  - Curcumin and its derivates are well-known for their different biological activities including antibacterial. On the other hand there are controversial reports concerning the antibacterial potential of graphene and, in particular, graphene oxide. In this study we have reported for the first time the antibacterial activity of curcumin/graphene nanomesh hybrids under ambient light conditions. The graphene nanomesh was synthesized by electrochemical exfoliation of highly oriented pyrolytic graphite in 1 M solution of ammonium persulfate and further functionalized by curcumin. Identical values of minimum inhibitory concentration (1 mg mL(-1)) were determined for pure curcumin and curcumin/graphene nanomesh hybrids toward Staphylococcus aureus. All tested samples had more pronounced antibacterial activity against Gram positive bacteria, Staphylococcus aureus compared to Escherichia coli as a representative of Gram negative strains. The poor antibacterial potential of exfoliated graphene improves significantly by the functionalization with curcumin, which allows for its usage as a antibacterial coating.
T2  - RSC Advances
T1  - Ambient light induced antibacterial action of curcumin/graphene nanomesh hybrids
VL  - 7
IS  - 57
SP  - 36081
EP  - 36092
DO  - 10.1039/c7ra05027e
ER  - 

@article{
author = "Marković, Zoran M. and Kepić, Dejan P. and Matijašević, Danka M. and Pavlović, Vladimir B. and Jovanović, Svetlana P. and Stanković, Nenad K. and Milivojević, Dušan and Špitalsky, Zdenko and Holclajtner-Antunović, Ivanka D. and Bajuk-Bogdanović, Danica V. and Nikšić, Miomir P. and Todorović-Marković, Biljana",
year = "2017",
abstract = "Curcumin and its derivates are well-known for their different biological activities including antibacterial. On the other hand there are controversial reports concerning the antibacterial potential of graphene and, in particular, graphene oxide. In this study we have reported for the first time the antibacterial activity of curcumin/graphene nanomesh hybrids under ambient light conditions. The graphene nanomesh was synthesized by electrochemical exfoliation of highly oriented pyrolytic graphite in 1 M solution of ammonium persulfate and further functionalized by curcumin. Identical values of minimum inhibitory concentration (1 mg mL(-1)) were determined for pure curcumin and curcumin/graphene nanomesh hybrids toward Staphylococcus aureus. All tested samples had more pronounced antibacterial activity against Gram positive bacteria, Staphylococcus aureus compared to Escherichia coli as a representative of Gram negative strains. The poor antibacterial potential of exfoliated graphene improves significantly by the functionalization with curcumin, which allows for its usage as a antibacterial coating.",
journal = "RSC Advances",
title = "Ambient light induced antibacterial action of curcumin/graphene nanomesh hybrids",
volume = "7",
number = "57",
pages = "36081-36092",
doi = "10.1039/c7ra05027e"
}

Marković, Z. M., Kepić, D. P., Matijašević, D. M., Pavlović, V. B., Jovanović, S. P., Stanković, N. K., Milivojević, D., Špitalsky, Z., Holclajtner-Antunović, I. D., Bajuk-Bogdanović, D. V., Nikšić, M. P.,& Todorović-Marković, B.. (2017). Ambient light induced antibacterial action of curcumin/graphene nanomesh hybrids. in RSC Advances, 7(57), 36081-36092.
https://doi.org/10.1039/c7ra05027e

Marković ZM, Kepić DP, Matijašević DM, Pavlović VB, Jovanović SP, Stanković NK, Milivojević D, Špitalsky Z, Holclajtner-Antunović ID, Bajuk-Bogdanović DV, Nikšić MP, Todorović-Marković B. Ambient light induced antibacterial action of curcumin/graphene nanomesh hybrids. in RSC Advances. 2017;7(57):36081-36092.
doi:10.1039/c7ra05027e .

Marković, Zoran M., Kepić, Dejan P., Matijašević, Danka M., Pavlović, Vladimir B., Jovanović, Svetlana P., Stanković, Nenad K., Milivojević, Dušan, Špitalsky, Zdenko, Holclajtner-Antunović, Ivanka D., Bajuk-Bogdanović, Danica V., Nikšić, Miomir P., Todorović-Marković, Biljana, "Ambient light induced antibacterial action of curcumin/graphene nanomesh hybrids" in RSC Advances, 7, no. 57 (2017):36081-36092,
https://doi.org/10.1039/c7ra05027e . .

TY  - JOUR
AU  - Marković, Zoran M.
AU  - Matijašević, Danka
AU  - Pavlović, Vladimir B.
AU  - Jovanović, Svetlana P.
AU  - Holclajtner-Antunović, Ivanka D.
AU  - Špitalsky, Zdenko
AU  - Mičušik, Matej
AU  - Dramićanin, Miroslav
AU  - Milivojević, Dušan
AU  - Nikšić, Miomir P.
AU  - Todorović-Marković, Biljana
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1576
AB  - Electrochemically exfoliated graphene is functionalized graphene with potential application in biomedicine. Two most relevant biological features of this material are its electrical conductivity and excellent water dispersibility. In this study we have tried to establish the correlation between graphene structure and its antibacterial properties. The exfoliation process was performed in a two electrode-highly oriented pyrolytic graphite electrochemical cell. Solution of ammonium persulfate was used as an electrolyte. Exfoliated graphene sheets were dispersed in aqueous media and characterized by atomic force microscopy, scanning electron microscopy, Raman spectroscopy, Fourier transform infrared spectroscopy, X photoelectron spectroscopy, X-ray diffraction, electron paramagnetic resonance, zeta potential, contact angle measurements and surface energy. Antibacterial assays have shown lack of the significant antibacterial activity. Major effect on bacteria was slight change of bacteria morphology. Membrane remained intact despite significant change of chemical content of membrane components. (C) 2017 Elsevier Inc. All rights reserved.
T2  - Journal of Colloid and Interface Science
T1  - Antibacterial potential of electrochemically exfoliated graphene sheets
VL  - 500
SP  - 30
EP  - 43
DO  - 10.1016/j.jcis.2017.03.110
ER  - 

@article{
author = "Marković, Zoran M. and Matijašević, Danka and Pavlović, Vladimir B. and Jovanović, Svetlana P. and Holclajtner-Antunović, Ivanka D. and Špitalsky, Zdenko and Mičušik, Matej and Dramićanin, Miroslav and Milivojević, Dušan and Nikšić, Miomir P. and Todorović-Marković, Biljana",
year = "2017",
abstract = "Electrochemically exfoliated graphene is functionalized graphene with potential application in biomedicine. Two most relevant biological features of this material are its electrical conductivity and excellent water dispersibility. In this study we have tried to establish the correlation between graphene structure and its antibacterial properties. The exfoliation process was performed in a two electrode-highly oriented pyrolytic graphite electrochemical cell. Solution of ammonium persulfate was used as an electrolyte. Exfoliated graphene sheets were dispersed in aqueous media and characterized by atomic force microscopy, scanning electron microscopy, Raman spectroscopy, Fourier transform infrared spectroscopy, X photoelectron spectroscopy, X-ray diffraction, electron paramagnetic resonance, zeta potential, contact angle measurements and surface energy. Antibacterial assays have shown lack of the significant antibacterial activity. Major effect on bacteria was slight change of bacteria morphology. Membrane remained intact despite significant change of chemical content of membrane components. (C) 2017 Elsevier Inc. All rights reserved.",
journal = "Journal of Colloid and Interface Science",
title = "Antibacterial potential of electrochemically exfoliated graphene sheets",
volume = "500",
pages = "30-43",
doi = "10.1016/j.jcis.2017.03.110"
}

Marković, Z. M., Matijašević, D., Pavlović, V. B., Jovanović, S. P., Holclajtner-Antunović, I. D., Špitalsky, Z., Mičušik, M., Dramićanin, M., Milivojević, D., Nikšić, M. P.,& Todorović-Marković, B.. (2017). Antibacterial potential of electrochemically exfoliated graphene sheets. in Journal of Colloid and Interface Science, 500, 30-43.
https://doi.org/10.1016/j.jcis.2017.03.110

Marković ZM, Matijašević D, Pavlović VB, Jovanović SP, Holclajtner-Antunović ID, Špitalsky Z, Mičušik M, Dramićanin M, Milivojević D, Nikšić MP, Todorović-Marković B. Antibacterial potential of electrochemically exfoliated graphene sheets. in Journal of Colloid and Interface Science. 2017;500:30-43.
doi:10.1016/j.jcis.2017.03.110 .

Marković, Zoran M., Matijašević, Danka, Pavlović, Vladimir B., Jovanović, Svetlana P., Holclajtner-Antunović, Ivanka D., Špitalsky, Zdenko, Mičušik, Matej, Dramićanin, Miroslav, Milivojević, Dušan, Nikšić, Miomir P., Todorović-Marković, Biljana, "Antibacterial potential of electrochemically exfoliated graphene sheets" in Journal of Colloid and Interface Science, 500 (2017):30-43,
https://doi.org/10.1016/j.jcis.2017.03.110 . .

TY  - JOUR
AU  - Marković, Zoran M.
AU  - Budimir, Milica
AU  - Kepić, Dejan P.
AU  - Holclajtner-Antunović, Ivanka D.
AU  - Marinović-Cincović, Milena
AU  - Dramićanin, Miroslav
AU  - Spasojević, Vojislav
AU  - Peruško, Davor
AU  - Špitalsky, Zdenko
AU  - Mičušik, Matej
AU  - Pavlović, Vladimir B.
AU  - Todorović-Marković, Biljana
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1043
AB  - The electrochemical exfoliation of graphite to give one-atom-thick graphene with desirable properties is a green, cost-effective method for high-yield graphene production. This paper presents the results of electrochemical exfoliation of two different graphite precursors under an applied direct current voltage of +12 V. The used characterization techniques (elemental analysis, Fourier transform infrared spectroscopy, X-ray diffraction, X-photoelectron spectroscopy, Raman spectroscopy, field emission scanning electron microscopy and atomic force microscopy) showed that the exfoliated powder is highly functionalized with a low carbon/oxygen content that is similar to graphene oxide. The exfoliated graphene sheets dispersed in N,N-dimethylformamide were deposited on ano-discs by vacuum filtration and transferred to glass ceramic substrates. The thermal annealing of the as-deposited films at 600 degrees C for 30 minutes resulted in an increase in the carbon/oxygen ratio by more than 3 fold and a decrease in the sheet resistance by 25%. The lowest values for the sheet resistance of the annealed graphene thin films were in the range of 0.32 +/- 0.04 to 0.84 +/- 0.1 kohm sq(-1) depending on the graphite source that was used.
T2  - RSC Advances
T1  - Semi-transparent, conductive thin films of electrochemical exfoliated graphene
VL  - 6
IS  - 45
SP  - 39275
EP  - 39283
DO  - 10.1039/c6ra04250c
ER  - 

@article{
author = "Marković, Zoran M. and Budimir, Milica and Kepić, Dejan P. and Holclajtner-Antunović, Ivanka D. and Marinović-Cincović, Milena and Dramićanin, Miroslav and Spasojević, Vojislav and Peruško, Davor and Špitalsky, Zdenko and Mičušik, Matej and Pavlović, Vladimir B. and Todorović-Marković, Biljana",
year = "2016",
abstract = "The electrochemical exfoliation of graphite to give one-atom-thick graphene with desirable properties is a green, cost-effective method for high-yield graphene production. This paper presents the results of electrochemical exfoliation of two different graphite precursors under an applied direct current voltage of +12 V. The used characterization techniques (elemental analysis, Fourier transform infrared spectroscopy, X-ray diffraction, X-photoelectron spectroscopy, Raman spectroscopy, field emission scanning electron microscopy and atomic force microscopy) showed that the exfoliated powder is highly functionalized with a low carbon/oxygen content that is similar to graphene oxide. The exfoliated graphene sheets dispersed in N,N-dimethylformamide were deposited on ano-discs by vacuum filtration and transferred to glass ceramic substrates. The thermal annealing of the as-deposited films at 600 degrees C for 30 minutes resulted in an increase in the carbon/oxygen ratio by more than 3 fold and a decrease in the sheet resistance by 25%. The lowest values for the sheet resistance of the annealed graphene thin films were in the range of 0.32 +/- 0.04 to 0.84 +/- 0.1 kohm sq(-1) depending on the graphite source that was used.",
journal = "RSC Advances",
title = "Semi-transparent, conductive thin films of electrochemical exfoliated graphene",
volume = "6",
number = "45",
pages = "39275-39283",
doi = "10.1039/c6ra04250c"
}

Marković, Z. M., Budimir, M., Kepić, D. P., Holclajtner-Antunović, I. D., Marinović-Cincović, M., Dramićanin, M., Spasojević, V., Peruško, D., Špitalsky, Z., Mičušik, M., Pavlović, V. B.,& Todorović-Marković, B.. (2016). Semi-transparent, conductive thin films of electrochemical exfoliated graphene. in RSC Advances, 6(45), 39275-39283.
https://doi.org/10.1039/c6ra04250c

Marković ZM, Budimir M, Kepić DP, Holclajtner-Antunović ID, Marinović-Cincović M, Dramićanin M, Spasojević V, Peruško D, Špitalsky Z, Mičušik M, Pavlović VB, Todorović-Marković B. Semi-transparent, conductive thin films of electrochemical exfoliated graphene. in RSC Advances. 2016;6(45):39275-39283.
doi:10.1039/c6ra04250c .

Marković, Zoran M., Budimir, Milica, Kepić, Dejan P., Holclajtner-Antunović, Ivanka D., Marinović-Cincović, Milena, Dramićanin, Miroslav, Spasojević, Vojislav, Peruško, Davor, Špitalsky, Zdenko, Mičušik, Matej, Pavlović, Vladimir B., Todorović-Marković, Biljana, "Semi-transparent, conductive thin films of electrochemical exfoliated graphene" in RSC Advances, 6, no. 45 (2016):39275-39283,
https://doi.org/10.1039/c6ra04250c . .

TY  - JOUR
AU  - Tošić, Dragana
AU  - Marković, Zoran M.
AU  - Jovanović, Svetlana P.
AU  - Prekodravac, Jovana
AU  - Budimir, Milica
AU  - Kepić, Dejan P.
AU  - Holclajtner-Antunović, Ivanka D.
AU  - Dramićanin, Miroslav
AU  - Todorović-Marković, Biljana
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1157
AB  - In this paper, we present a novel method for graphene nanoribbons formation using nickel nanowires as templates. Modification of electrochemical procedure for nickel nanowires synthesis was introduced by implementing graphene quantum dots as a carbon source. Thus, nickel nanowires with graphene quantum dots were prepared. These wires were exposed to rapid thermal annealing at high temperatures (500 degrees C, 700 degrees C and 800 degrees C). During this process carbon atoms dissolve in metal and precipitate to the nickel surface forming nickel-carbon nanowires. Atomic force microscopy, scanning electron microscopy and Raman spectroscopy were characterization methods used for analysis of changes in nickel-carbon nanowires properties depending on the different annealing temperatures. After etching nickel with nitric acid, graphene nanoribbons with average diameters of 32 nm and average lengths of 4 mu m were obtained. (C) 2016 Elsevier B.V. All rights reserved.
T2  - Synthetic Metals
T1  - Rapid thermal annealing of nickel-carbon nanowires for graphene nanoribbons formation
VL  - 218
SP  - 43
EP  - 49
DO  - 10.1016/j.synthmet.2016.04.016
ER  - 

@article{
author = "Tošić, Dragana and Marković, Zoran M. and Jovanović, Svetlana P. and Prekodravac, Jovana and Budimir, Milica and Kepić, Dejan P. and Holclajtner-Antunović, Ivanka D. and Dramićanin, Miroslav and Todorović-Marković, Biljana",
year = "2016",
abstract = "In this paper, we present a novel method for graphene nanoribbons formation using nickel nanowires as templates. Modification of electrochemical procedure for nickel nanowires synthesis was introduced by implementing graphene quantum dots as a carbon source. Thus, nickel nanowires with graphene quantum dots were prepared. These wires were exposed to rapid thermal annealing at high temperatures (500 degrees C, 700 degrees C and 800 degrees C). During this process carbon atoms dissolve in metal and precipitate to the nickel surface forming nickel-carbon nanowires. Atomic force microscopy, scanning electron microscopy and Raman spectroscopy were characterization methods used for analysis of changes in nickel-carbon nanowires properties depending on the different annealing temperatures. After etching nickel with nitric acid, graphene nanoribbons with average diameters of 32 nm and average lengths of 4 mu m were obtained. (C) 2016 Elsevier B.V. All rights reserved.",
journal = "Synthetic Metals",
title = "Rapid thermal annealing of nickel-carbon nanowires for graphene nanoribbons formation",
volume = "218",
pages = "43-49",
doi = "10.1016/j.synthmet.2016.04.016"
}

Tošić, D., Marković, Z. M., Jovanović, S. P., Prekodravac, J., Budimir, M., Kepić, D. P., Holclajtner-Antunović, I. D., Dramićanin, M.,& Todorović-Marković, B.. (2016). Rapid thermal annealing of nickel-carbon nanowires for graphene nanoribbons formation. in Synthetic Metals, 218, 43-49.
https://doi.org/10.1016/j.synthmet.2016.04.016

Tošić D, Marković ZM, Jovanović SP, Prekodravac J, Budimir M, Kepić DP, Holclajtner-Antunović ID, Dramićanin M, Todorović-Marković B. Rapid thermal annealing of nickel-carbon nanowires for graphene nanoribbons formation. in Synthetic Metals. 2016;218:43-49.
doi:10.1016/j.synthmet.2016.04.016 .

Tošić, Dragana, Marković, Zoran M., Jovanović, Svetlana P., Prekodravac, Jovana, Budimir, Milica, Kepić, Dejan P., Holclajtner-Antunović, Ivanka D., Dramićanin, Miroslav, Todorović-Marković, Biljana, "Rapid thermal annealing of nickel-carbon nanowires for graphene nanoribbons formation" in Synthetic Metals, 218 (2016):43-49,
https://doi.org/10.1016/j.synthmet.2016.04.016 . .

TY  - JOUR
AU  - Vujković, Milica
AU  - Vidoeski, Bojan
AU  - Jovanović, Svetlana P.
AU  - Bajuk-Bogdanović, Danica V.
AU  - Budimir, Milica
AU  - Marković, Zoran M.
AU  - Pavlović, Vladimir B.
AU  - Todorović-Marković, Biljana
AU  - Holclajtner-Antunović, Ivanka D.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1274
AB  - A novel electrochemically exfoliated graphene-molybdophosphoric acid nanohybride (EG-MoPA) was prepared via a simple method. Both scanning electron (SEM) and atomic force microscopy (AFM) results show that MoPA clusters are attached to the surfaces of graphene sheets. By changing the mass ratio of EG-MoPA, the morphology of nanohybrid itself can be significantly modulated, from mostly flat graphene like structure at low amount of MoPA to very uneven, wavy surfaces when MoPA is present in higher concentration. The Raman and Fourier transform infra red (FTIR) spectra in conjunction with electrochemical results indicate that strong interaction exists between the components of nanohybride based on charge transfer and electrostatic interaction of graphene sheets and MoPA. The electrochemical performances are improved by synergetic effect of reversible redox properties of MoPA and the double layer capacitance of a high-surface area of the obtained nanohybrides. The higher current capability of EG was achieved by anchoring the small MoPA concentration on the graphene support. The strong bonding of EG with the MoPA prevents acid to dissolve in the electrolyte upon cycling, enabling the stable capacitance behaviour of the low-doped EG sample. The capacitance for the EG doped with the high amount of MoPA was found to be much larger than for EG. However, the obtained capacitance decreases at the beginning of cycling due to the dissolution of excessive amount of surface MoPA, weakly bonded to the graphene support. (C) 2016 Elsevier Ltd. All rights reserved.
T2  - Electrochimica Acta
T1  - Synthesis and Characterization of Electrochemically Exfoliated Graphene-Molybdophosphate Hybrid Materials for Charge Storage Devices
VL  - 217
SP  - 34
EP  - 46
DO  - 10.1016/j.electacta.2016.09.067
ER  - 

@article{
author = "Vujković, Milica and Vidoeski, Bojan and Jovanović, Svetlana P. and Bajuk-Bogdanović, Danica V. and Budimir, Milica and Marković, Zoran M. and Pavlović, Vladimir B. and Todorović-Marković, Biljana and Holclajtner-Antunović, Ivanka D.",
year = "2016",
abstract = "A novel electrochemically exfoliated graphene-molybdophosphoric acid nanohybride (EG-MoPA) was prepared via a simple method. Both scanning electron (SEM) and atomic force microscopy (AFM) results show that MoPA clusters are attached to the surfaces of graphene sheets. By changing the mass ratio of EG-MoPA, the morphology of nanohybrid itself can be significantly modulated, from mostly flat graphene like structure at low amount of MoPA to very uneven, wavy surfaces when MoPA is present in higher concentration. The Raman and Fourier transform infra red (FTIR) spectra in conjunction with electrochemical results indicate that strong interaction exists between the components of nanohybride based on charge transfer and electrostatic interaction of graphene sheets and MoPA. The electrochemical performances are improved by synergetic effect of reversible redox properties of MoPA and the double layer capacitance of a high-surface area of the obtained nanohybrides. The higher current capability of EG was achieved by anchoring the small MoPA concentration on the graphene support. The strong bonding of EG with the MoPA prevents acid to dissolve in the electrolyte upon cycling, enabling the stable capacitance behaviour of the low-doped EG sample. The capacitance for the EG doped with the high amount of MoPA was found to be much larger than for EG. However, the obtained capacitance decreases at the beginning of cycling due to the dissolution of excessive amount of surface MoPA, weakly bonded to the graphene support. (C) 2016 Elsevier Ltd. All rights reserved.",
journal = "Electrochimica Acta",
title = "Synthesis and Characterization of Electrochemically Exfoliated Graphene-Molybdophosphate Hybrid Materials for Charge Storage Devices",
volume = "217",
pages = "34-46",
doi = "10.1016/j.electacta.2016.09.067"
}

Vujković, M., Vidoeski, B., Jovanović, S. P., Bajuk-Bogdanović, D. V., Budimir, M., Marković, Z. M., Pavlović, V. B., Todorović-Marković, B.,& Holclajtner-Antunović, I. D.. (2016). Synthesis and Characterization of Electrochemically Exfoliated Graphene-Molybdophosphate Hybrid Materials for Charge Storage Devices. in Electrochimica Acta, 217, 34-46.
https://doi.org/10.1016/j.electacta.2016.09.067

Vujković M, Vidoeski B, Jovanović SP, Bajuk-Bogdanović DV, Budimir M, Marković ZM, Pavlović VB, Todorović-Marković B, Holclajtner-Antunović ID. Synthesis and Characterization of Electrochemically Exfoliated Graphene-Molybdophosphate Hybrid Materials for Charge Storage Devices. in Electrochimica Acta. 2016;217:34-46.
doi:10.1016/j.electacta.2016.09.067 .

Vujković, Milica, Vidoeski, Bojan, Jovanović, Svetlana P., Bajuk-Bogdanović, Danica V., Budimir, Milica, Marković, Zoran M., Pavlović, Vladimir B., Todorović-Marković, Biljana, Holclajtner-Antunović, Ivanka D., "Synthesis and Characterization of Electrochemically Exfoliated Graphene-Molybdophosphate Hybrid Materials for Charge Storage Devices" in Electrochimica Acta, 217 (2016):34-46,
https://doi.org/10.1016/j.electacta.2016.09.067 . .

TY  - JOUR
AU  - Paunović, Verica G.
AU  - Ristić, Biljana
AU  - Marković, Zoran M.
AU  - Todorović-Marković, Biljana
AU  - Kosić, Milica
AU  - Prekodravac, Jovana
AU  - Kravić-Stevović, Tamara K.
AU  - Martinović, Tamara
AU  - Mičušik, Matej
AU  - Špitalsky, Zdenko
AU  - Trajković, Vladimir S.
AU  - Harhaji-Trajković, Ljubica M.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1084
AB  - Indian spice curcumin is known for its anticancer properties, but the anticancer mechanisms of nanoparticulate curcumin have not been completely elucidated. We here investigated the in vitro anticancer effect of blue light (470 nm, 1 W)-irradiated curcumin nanoparticles prepared by tetrahydrofuran/water solvent exchange, using U251 glioma, B16 melanoma, and H460 lung cancer cells as targets. The size of curcumin nanocrystals was approximately 250 nm, while photoexcitation induced their oxidation and partial agglomeration. Although cell membrane in the absence of light was almost impermeable to curcumin nanoparticles, photoexcitation stimulated their internalization. While irradiation with blue light (1-8 min) or nanocurcumin (1.25-10 mu g/ml) alone was only marginally toxic to tumor cells, photoexcited nanocurcumin displayed a significant cytotoxicity depending both on the irradiation time and nanocurcumin concentration. Photoexcited nanocurcumin induced phosphorylation of cJun N-terminal kinase (JNK), mitochondrial depolarization, caspase-3 activation, and cleavage of poly (ADP-ribose) polymerase, indicating apoptotic cell death. Accordingly, pharmacologial inhibition of JNK and caspase activity rescued cancer cells from photoexcited nanocurcumin. On the other hand, antioxidant treatment did not reduce photocytotoxicity of nanocurcumin, arguing against the involvement of oxidative stress. By demonstrating the ability of photoexcited nanocurcumin to induce oxidative-stress independent, JNK-and caspase-dependent apoptosis, our results support its further investigation in cancer therapy.
PB  - Springer
T2  - Biomedical Microdevices
T1  - c-Jun N-terminal kinase-dependent apoptotic photocytotoxicity of solvent exchange-prepared curcumin nanoparticles
VL  - 18
IS  - 2
DO  - 10.1007/s10544-016-0062-2
ER  - 

@article{
author = "Paunović, Verica G. and Ristić, Biljana and Marković, Zoran M. and Todorović-Marković, Biljana and Kosić, Milica and Prekodravac, Jovana and Kravić-Stevović, Tamara K. and Martinović, Tamara and Mičušik, Matej and Špitalsky, Zdenko and Trajković, Vladimir S. and Harhaji-Trajković, Ljubica M.",
year = "2016",
abstract = "Indian spice curcumin is known for its anticancer properties, but the anticancer mechanisms of nanoparticulate curcumin have not been completely elucidated. We here investigated the in vitro anticancer effect of blue light (470 nm, 1 W)-irradiated curcumin nanoparticles prepared by tetrahydrofuran/water solvent exchange, using U251 glioma, B16 melanoma, and H460 lung cancer cells as targets. The size of curcumin nanocrystals was approximately 250 nm, while photoexcitation induced their oxidation and partial agglomeration. Although cell membrane in the absence of light was almost impermeable to curcumin nanoparticles, photoexcitation stimulated their internalization. While irradiation with blue light (1-8 min) or nanocurcumin (1.25-10 mu g/ml) alone was only marginally toxic to tumor cells, photoexcited nanocurcumin displayed a significant cytotoxicity depending both on the irradiation time and nanocurcumin concentration. Photoexcited nanocurcumin induced phosphorylation of cJun N-terminal kinase (JNK), mitochondrial depolarization, caspase-3 activation, and cleavage of poly (ADP-ribose) polymerase, indicating apoptotic cell death. Accordingly, pharmacologial inhibition of JNK and caspase activity rescued cancer cells from photoexcited nanocurcumin. On the other hand, antioxidant treatment did not reduce photocytotoxicity of nanocurcumin, arguing against the involvement of oxidative stress. By demonstrating the ability of photoexcited nanocurcumin to induce oxidative-stress independent, JNK-and caspase-dependent apoptosis, our results support its further investigation in cancer therapy.",
publisher = "Springer",
journal = "Biomedical Microdevices",
title = "c-Jun N-terminal kinase-dependent apoptotic photocytotoxicity of solvent exchange-prepared curcumin nanoparticles",
volume = "18",
number = "2",
doi = "10.1007/s10544-016-0062-2"
}

Paunović, V. G., Ristić, B., Marković, Z. M., Todorović-Marković, B., Kosić, M., Prekodravac, J., Kravić-Stevović, T. K., Martinović, T., Mičušik, M., Špitalsky, Z., Trajković, V. S.,& Harhaji-Trajković, L. M.. (2016). c-Jun N-terminal kinase-dependent apoptotic photocytotoxicity of solvent exchange-prepared curcumin nanoparticles. in Biomedical Microdevices
Springer., 18(2).
https://doi.org/10.1007/s10544-016-0062-2

Paunović VG, Ristić B, Marković ZM, Todorović-Marković B, Kosić M, Prekodravac J, Kravić-Stevović TK, Martinović T, Mičušik M, Špitalsky Z, Trajković VS, Harhaji-Trajković LM. c-Jun N-terminal kinase-dependent apoptotic photocytotoxicity of solvent exchange-prepared curcumin nanoparticles. in Biomedical Microdevices. 2016;18(2).
doi:10.1007/s10544-016-0062-2 .

Paunović, Verica G., Ristić, Biljana, Marković, Zoran M., Todorović-Marković, Biljana, Kosić, Milica, Prekodravac, Jovana, Kravić-Stevović, Tamara K., Martinović, Tamara, Mičušik, Matej, Špitalsky, Zdenko, Trajković, Vladimir S., Harhaji-Trajković, Ljubica M., "c-Jun N-terminal kinase-dependent apoptotic photocytotoxicity of solvent exchange-prepared curcumin nanoparticles" in Biomedical Microdevices, 18, no. 2 (2016),
https://doi.org/10.1007/s10544-016-0062-2 . .