TY  - JOUR
AU  - Jovanović, Svetlana P.
AU  - Syrgiannis, Zois
AU  - Budimir, Milica D.
AU  - Milivojević, Dušan D.
AU  - Jovanović, Dragana J.
AU  - Pavlović, Vladimir
AU  - Papan, Jelena M.
AU  - Bartenwerfer, Malte
AU  - Mojsin, Marija M.
AU  - Stevanović, Milena J.
AU  - Todorović-Marković, Biljana
PY  - 2020
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5390
AB  - Due to their low cost and possible green synthesis, high stability and resistance to photobleaching, graphene quantum dots (GQDs) can be considered as one of the class of carbon nanomaterials which may have great potential as an agent for photosensitized oxygen activation. In such a way, GQDs can be used as a theranostic agent in photodynamic therapy. In this work pristine GQDs, GQDs irradiated with gamma rays and GQDs doped with N and N, S atoms are produced using a simple, green approach. By using different techniques (AFM, HRTEM, SEM-EDS, FTIR, XRD, PL and UV-Vis) we investigated structural and optical properties of the new types of GQDs. We showed that GQDs functionalized with thiourea (GQDs-TU) completely lost the ability to produce singlet oxygen (O-1(2)) upon photoexcitation while functionalization with urea (GQDs-U) improves the capability of GQDs to produce O-1(2) upon the same conditions. Thus, presented GQDs modification with urea seems like a promising approach for the production of the efficient photosensitizer. On the opposite, GQDs-TU are efficient . OH quencher. Due to high singlet oxygen production and low cytotoxicity below 100 mu g/mL against HeLa cells, GQDs-U is a good candidate as an agent in photodynamic therapy at this concentration.
PB  - Elsevier, Amsterdam
T2  - Materials Science & Engineering C-Materials for Biological Applications
T1  - Graphene quantum dots as singlet oxygen producer or radical quencher The matter of functionalization with urea/thiourea
VL  - 109
DO  - 10.1016/j.msec.2019.110539
ER  - 

@article{
author = "Jovanović, Svetlana P. and Syrgiannis, Zois and Budimir, Milica D. and Milivojević, Dušan D. and Jovanović, Dragana J. and Pavlović, Vladimir and Papan, Jelena M. and Bartenwerfer, Malte and Mojsin, Marija M. and Stevanović, Milena J. and Todorović-Marković, Biljana",
year = "2020",
abstract = "Due to their low cost and possible green synthesis, high stability and resistance to photobleaching, graphene quantum dots (GQDs) can be considered as one of the class of carbon nanomaterials which may have great potential as an agent for photosensitized oxygen activation. In such a way, GQDs can be used as a theranostic agent in photodynamic therapy. In this work pristine GQDs, GQDs irradiated with gamma rays and GQDs doped with N and N, S atoms are produced using a simple, green approach. By using different techniques (AFM, HRTEM, SEM-EDS, FTIR, XRD, PL and UV-Vis) we investigated structural and optical properties of the new types of GQDs. We showed that GQDs functionalized with thiourea (GQDs-TU) completely lost the ability to produce singlet oxygen (O-1(2)) upon photoexcitation while functionalization with urea (GQDs-U) improves the capability of GQDs to produce O-1(2) upon the same conditions. Thus, presented GQDs modification with urea seems like a promising approach for the production of the efficient photosensitizer. On the opposite, GQDs-TU are efficient . OH quencher. Due to high singlet oxygen production and low cytotoxicity below 100 mu g/mL against HeLa cells, GQDs-U is a good candidate as an agent in photodynamic therapy at this concentration.",
publisher = "Elsevier, Amsterdam",
journal = "Materials Science & Engineering C-Materials for Biological Applications",
title = "Graphene quantum dots as singlet oxygen producer or radical quencher The matter of functionalization with urea/thiourea",
volume = "109",
doi = "10.1016/j.msec.2019.110539"
}

Jovanović, S. P., Syrgiannis, Z., Budimir, M. D., Milivojević, D. D., Jovanović, D. J., Pavlović, V., Papan, J. M., Bartenwerfer, M., Mojsin, M. M., Stevanović, M. J.,& Todorović-Marković, B.. (2020). Graphene quantum dots as singlet oxygen producer or radical quencher The matter of functionalization with urea/thiourea. in Materials Science & Engineering C-Materials for Biological Applications
Elsevier, Amsterdam., 109.
https://doi.org/10.1016/j.msec.2019.110539

Jovanović SP, Syrgiannis Z, Budimir MD, Milivojević DD, Jovanović DJ, Pavlović V, Papan JM, Bartenwerfer M, Mojsin MM, Stevanović MJ, Todorović-Marković B. Graphene quantum dots as singlet oxygen producer or radical quencher The matter of functionalization with urea/thiourea. in Materials Science & Engineering C-Materials for Biological Applications. 2020;109.
doi:10.1016/j.msec.2019.110539 .

Jovanović, Svetlana P., Syrgiannis, Zois, Budimir, Milica D., Milivojević, Dušan D., Jovanović, Dragana J., Pavlović, Vladimir, Papan, Jelena M., Bartenwerfer, Malte, Mojsin, Marija M., Stevanović, Milena J., Todorović-Marković, Biljana, "Graphene quantum dots as singlet oxygen producer or radical quencher The matter of functionalization with urea/thiourea" in Materials Science & Engineering C-Materials for Biological Applications, 109 (2020),
https://doi.org/10.1016/j.msec.2019.110539 . .

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 . .

TY  - JOUR
AU  - Jovanović, Svetlana P.
AU  - Holclajtner-Antunović, Ivanka
AU  - Uskoković-Marković, Snežana M.
AU  - Bajuk-Bogdanović, Danica
AU  - Pavlović, Vladimir
AU  - Tosić, Dragana
AU  - Milenković, Marina
AU  - Todorović-Marković, Biljana
PY  - 2018
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4787
AB  - Antibacterial properties of graphene oxide (GO) have been studied extensively in the last few years, while for polyoxometalates there are just a few researches. Herein, we prepared nanocomposites of GO and different amounts of 12-molybdophosphoric acid (MoPA) and analyzed their antibacterial activity and both structural and morphological properties. In nanocomposites with higher amounts of MoPA, graphene sheets were significantly changed with disrupted flat, graphene-like morphology of GO. In the nanocomposites with low MoPA content, flat GO morphology was preserved. Additionally, structural analyses showed some changes in symmetry of the Keggin anion as a consequence of interactions between GO and MoPA, the increase in structural disorder and the lowering of electron density in GO structure due to interaction with MoPA. We have studied antibacterial properties on the gram-positive: Staphylococcus aureus, Staphylococcus epidermidis, Bacillus subtilis; and the gram-negative bacteria: Escherichia coil, Klebsiella pneumoniae, Pseudomonas aeruginosa and Salmonella abony. Only a mild antibacterial effect of GO and nanocomposites with low amount of MoPA against Bacillus subtilis was observed, while the rest of analyzed materials did not show any antibacterial activity.
PB  - Elsevier Science Sa, Lausanne
T2  - Materials Chemistry and Physics
T1  - Modification of graphene oxide surfaces with 12-molybdophosphoric acid: Structural and antibacterial study
EP  - 167
SP  - 157
VL  - 213
DO  - 10.1016/j.matchemphys.2018.04.011
ER  - 

@article{
author = "Jovanović, Svetlana P. and Holclajtner-Antunović, Ivanka and Uskoković-Marković, Snežana M. and Bajuk-Bogdanović, Danica and Pavlović, Vladimir and Tosić, Dragana and Milenković, Marina and Todorović-Marković, Biljana",
year = "2018",
abstract = "Antibacterial properties of graphene oxide (GO) have been studied extensively in the last few years, while for polyoxometalates there are just a few researches. Herein, we prepared nanocomposites of GO and different amounts of 12-molybdophosphoric acid (MoPA) and analyzed their antibacterial activity and both structural and morphological properties. In nanocomposites with higher amounts of MoPA, graphene sheets were significantly changed with disrupted flat, graphene-like morphology of GO. In the nanocomposites with low MoPA content, flat GO morphology was preserved. Additionally, structural analyses showed some changes in symmetry of the Keggin anion as a consequence of interactions between GO and MoPA, the increase in structural disorder and the lowering of electron density in GO structure due to interaction with MoPA. We have studied antibacterial properties on the gram-positive: Staphylococcus aureus, Staphylococcus epidermidis, Bacillus subtilis; and the gram-negative bacteria: Escherichia coil, Klebsiella pneumoniae, Pseudomonas aeruginosa and Salmonella abony. Only a mild antibacterial effect of GO and nanocomposites with low amount of MoPA against Bacillus subtilis was observed, while the rest of analyzed materials did not show any antibacterial activity.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Materials Chemistry and Physics",
title = "Modification of graphene oxide surfaces with 12-molybdophosphoric acid: Structural and antibacterial study",
pages = "167-157",
volume = "213",
doi = "10.1016/j.matchemphys.2018.04.011"
}

Jovanović, S. P., Holclajtner-Antunović, I., Uskoković-Marković, S. M., Bajuk-Bogdanović, D., Pavlović, V., Tosić, D., Milenković, M.,& Todorović-Marković, B.. (2018). Modification of graphene oxide surfaces with 12-molybdophosphoric acid: Structural and antibacterial study. in Materials Chemistry and Physics
Elsevier Science Sa, Lausanne., 213, 157-167.
https://doi.org/10.1016/j.matchemphys.2018.04.011

Jovanović SP, Holclajtner-Antunović I, Uskoković-Marković SM, Bajuk-Bogdanović D, Pavlović V, Tosić D, Milenković M, Todorović-Marković B. Modification of graphene oxide surfaces with 12-molybdophosphoric acid: Structural and antibacterial study. in Materials Chemistry and Physics. 2018;213:157-167.
doi:10.1016/j.matchemphys.2018.04.011 .

Jovanović, Svetlana P., Holclajtner-Antunović, Ivanka, Uskoković-Marković, Snežana M., Bajuk-Bogdanović, Danica, Pavlović, Vladimir, Tosić, Dragana, Milenković, Marina, Todorović-Marković, Biljana, "Modification of graphene oxide surfaces with 12-molybdophosphoric acid: Structural and antibacterial study" in Materials Chemistry and Physics, 213 (2018):157-167,
https://doi.org/10.1016/j.matchemphys.2018.04.011 . .

TY  - JOUR
AU  - Kepić, Dejan P.
AU  - Ristić, Ivan S.
AU  - Marinović-Cincović, Milena
AU  - Perusko, Davor
AU  - Spitalsky, Zdenko
AU  - Pavlović, Vladimir
AU  - Budimir, Milica D.
AU  - Siffalović, Peter
AU  - Dramicanin, Miroslav D.
AU  - Micusik, Matej
AU  - Kleinova, Angela
AU  - Janigova, Ivica
AU  - Marković, Zoran M.
AU  - Todorović-Marković, Biljana
PY  - 2018
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4778
AB  - This paper reports a simple route for the preparation of graphene/poly(styrene-b-butadiene-b-styrene) (SBS) nanocomposite films employing a vacuum filtration method. Graphene is exfoliated well by an electrochemical procedure and homogeneously dispersed in the polymer matrix. The prepared nanocomposite films were characterized by XRD, Fourier transform IR (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, AFM and SEM. Morphological studies showed that graphene formed a smooth coating over the surface of SBS. The increase in graphene concentration induces the wrinkling of graphene sheets at the composite surface which causes a further increase in surface roughness. The FTIR, Raman and XPS spectra of graphene/SBS nanocomposite films indicate the strong interactions between graphene and the polymer matrix. According to the XRD patterns, introducing SBS into graphene did not modify the graphene structure additionally, i.e. the crystal lattice parameters do not depend on SBS content in graphene/SBS nanocomposite films. The graphene/SBS nanocomposite films also exhibited better hydrophobicity due to the increased surface roughness and lower sheet resistivity (reduced 10 times) compared to exfoliated graphene.
PB  - Wiley, Hoboken
T2  - Polymer International
T1  - Simple route for the preparation of graphene/poly(styrene-b-butadiene-b-styrene) nanocomposite films with enhanced electrical conductivity and hydrophobicity
EP  - 1127
IS  - 8
SP  - 1118
VL  - 67
DO  - 10.1002/pi.5620
ER  - 

@article{
author = "Kepić, Dejan P. and Ristić, Ivan S. and Marinović-Cincović, Milena and Perusko, Davor and Spitalsky, Zdenko and Pavlović, Vladimir and Budimir, Milica D. and Siffalović, Peter and Dramicanin, Miroslav D. and Micusik, Matej and Kleinova, Angela and Janigova, Ivica and Marković, Zoran M. and Todorović-Marković, Biljana",
year = "2018",
abstract = "This paper reports a simple route for the preparation of graphene/poly(styrene-b-butadiene-b-styrene) (SBS) nanocomposite films employing a vacuum filtration method. Graphene is exfoliated well by an electrochemical procedure and homogeneously dispersed in the polymer matrix. The prepared nanocomposite films were characterized by XRD, Fourier transform IR (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, AFM and SEM. Morphological studies showed that graphene formed a smooth coating over the surface of SBS. The increase in graphene concentration induces the wrinkling of graphene sheets at the composite surface which causes a further increase in surface roughness. The FTIR, Raman and XPS spectra of graphene/SBS nanocomposite films indicate the strong interactions between graphene and the polymer matrix. According to the XRD patterns, introducing SBS into graphene did not modify the graphene structure additionally, i.e. the crystal lattice parameters do not depend on SBS content in graphene/SBS nanocomposite films. The graphene/SBS nanocomposite films also exhibited better hydrophobicity due to the increased surface roughness and lower sheet resistivity (reduced 10 times) compared to exfoliated graphene.",
publisher = "Wiley, Hoboken",
journal = "Polymer International",
title = "Simple route for the preparation of graphene/poly(styrene-b-butadiene-b-styrene) nanocomposite films with enhanced electrical conductivity and hydrophobicity",
pages = "1127-1118",
number = "8",
volume = "67",
doi = "10.1002/pi.5620"
}

Kepić, D. P., Ristić, I. S., Marinović-Cincović, M., Perusko, D., Spitalsky, Z., Pavlović, V., Budimir, M. D., Siffalović, P., Dramicanin, M. D., Micusik, M., Kleinova, A., Janigova, I., Marković, Z. M.,& Todorović-Marković, B.. (2018). Simple route for the preparation of graphene/poly(styrene-b-butadiene-b-styrene) nanocomposite films with enhanced electrical conductivity and hydrophobicity. in Polymer International
Wiley, Hoboken., 67(8), 1118-1127.
https://doi.org/10.1002/pi.5620

Kepić DP, Ristić IS, Marinović-Cincović M, Perusko D, Spitalsky Z, Pavlović V, Budimir MD, Siffalović P, Dramicanin MD, Micusik M, Kleinova A, Janigova I, Marković ZM, Todorović-Marković B. Simple route for the preparation of graphene/poly(styrene-b-butadiene-b-styrene) nanocomposite films with enhanced electrical conductivity and hydrophobicity. in Polymer International. 2018;67(8):1118-1127.
doi:10.1002/pi.5620 .

Kepić, Dejan P., Ristić, Ivan S., Marinović-Cincović, Milena, Perusko, Davor, Spitalsky, Zdenko, Pavlović, Vladimir, Budimir, Milica D., Siffalović, Peter, Dramicanin, Miroslav D., Micusik, Matej, Kleinova, Angela, Janigova, Ivica, Marković, Zoran M., Todorović-Marković, Biljana, "Simple route for the preparation of graphene/poly(styrene-b-butadiene-b-styrene) nanocomposite films with enhanced electrical conductivity and hydrophobicity" in Polymer International, 67, no. 8 (2018):1118-1127,
https://doi.org/10.1002/pi.5620 . .

TY  - JOUR
AU  - Marković, Z.M.
AU  - Kepić, Dejan P.
AU  - Matijašević, Danka
AU  - Pavlović, Vladimir
AU  - Jovanović, S.P.
AU  - Stanković, N.K.
AU  - Milivojević, Dušan D.
AU  - Spitalsky, Z.
AU  - Holclajtner-Antunović, Ivanka
AU  - Bajuk-Bogdanović, Danica
AU  - Nikšić, Miomir
AU  - Todorović-Marković, Biljana
PY  - 2017
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4467
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.
PB  - Royal Soc Chemistry, Cambridge
T2  - RSC Advances
T1  - Ambient light induced antibacterial action of curcumin/graphene nanomesh hybrids
EP  - 36092
IS  - 57
SP  - 36081
VL  - 7
DO  - 10.1039/c7ra05027e
ER  - 

@article{
author = "Marković, Z.M. and Kepić, Dejan P. and Matijašević, Danka and Pavlović, Vladimir and Jovanović, S.P. and Stanković, N.K. and Milivojević, Dušan D. and Spitalsky, Z. and Holclajtner-Antunović, Ivanka and Bajuk-Bogdanović, Danica and Nikšić, Miomir 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.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "RSC Advances",
title = "Ambient light induced antibacterial action of curcumin/graphene nanomesh hybrids",
pages = "36092-36081",
number = "57",
volume = "7",
doi = "10.1039/c7ra05027e"
}

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

Marković Z, Kepić DP, Matijašević D, Pavlović V, Jovanović S, Stanković N, Milivojević DD, Spitalsky Z, Holclajtner-Antunović I, Bajuk-Bogdanović D, Nikšić M, 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, Z.M., Kepić, Dejan P., Matijašević, Danka, Pavlović, Vladimir, Jovanović, S.P., Stanković, N.K., Milivojević, Dušan D., Spitalsky, Z., Holclajtner-Antunović, Ivanka, Bajuk-Bogdanović, Danica, Nikšić, Miomir, 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
AU  - Jovanović, Svetlana P.
AU  - Holclajtner-Antunović, Ivanka
AU  - Spitalsky, Zdenko
AU  - Micusik, Matej
AU  - Dramicanin, Miroslav D.
AU  - Milivojević, Dušan D.
AU  - Nikšić, Miomir
AU  - Todorović-Marković, Biljana
PY  - 2017
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4348
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.
PB  - Academic Press Inc Elsevier Science, San Diego
T2  - Journal of Colloid and Interface Science
T1  - Antibacterial potential of electrochemically exfoliated graphene sheets
EP  - 43
SP  - 30
VL  - 500
DO  - 10.1016/j.jcis.2017.03.110
ER  - 

@article{
author = "Marković, Zoran M. and Matijašević, Danka and Pavlović, Vladimir and Jovanović, Svetlana P. and Holclajtner-Antunović, Ivanka and Spitalsky, Zdenko and Micusik, Matej and Dramicanin, Miroslav D. and Milivojević, Dušan D. and Nikšić, Miomir 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.",
publisher = "Academic Press Inc Elsevier Science, San Diego",
journal = "Journal of Colloid and Interface Science",
title = "Antibacterial potential of electrochemically exfoliated graphene sheets",
pages = "43-30",
volume = "500",
doi = "10.1016/j.jcis.2017.03.110"
}

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

Marković ZM, Matijašević D, Pavlović V, Jovanović SP, Holclajtner-Antunović I, Spitalsky Z, Micusik M, Dramicanin MD, Milivojević DD, Nikšić M, 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, Jovanović, Svetlana P., Holclajtner-Antunović, Ivanka, Spitalsky, Zdenko, Micusik, Matej, Dramicanin, Miroslav D., Milivojević, Dušan D., Nikšić, Miomir, 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, Z.M.
AU  - Budimir, Milica D.
AU  - Kepić, Dejan P.
AU  - Holclajtner-Antunović, Ivanka
AU  - Marinović-Cincović, Milena
AU  - Dramicanin, Miroslav D.
AU  - Spasojević, V.D.
AU  - Perusko, Davor
AU  - Spitalsky, Z.
AU  - Micusik, M.
AU  - Pavlović, Vladimir
AU  - Todorović-Marković, Biljana
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4203
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.
PB  - Royal Soc Chemistry, Cambridge
T2  - RSC Advances
T1  - Semi-transparent, conductive thin films of electrochemical exfoliated graphene
EP  - 39283
IS  - 45
SP  - 39275
VL  - 6
DO  - 10.1039/c6ra04250c
ER  - 

@article{
author = "Marković, Z.M. and Budimir, Milica D. and Kepić, Dejan P. and Holclajtner-Antunović, Ivanka and Marinović-Cincović, Milena and Dramicanin, Miroslav D. and Spasojević, V.D. and Perusko, Davor and Spitalsky, Z. and Micusik, M. and Pavlović, Vladimir 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.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "RSC Advances",
title = "Semi-transparent, conductive thin films of electrochemical exfoliated graphene",
pages = "39283-39275",
number = "45",
volume = "6",
doi = "10.1039/c6ra04250c"
}

Marković, Z.M., Budimir, M. D., Kepić, D. P., Holclajtner-Antunović, I., Marinović-Cincović, M., Dramicanin, M. D., Spasojević, V.D., Perusko, D., Spitalsky, Z., Micusik, M., Pavlović, V.,& Todorović-Marković, B.. (2016). Semi-transparent, conductive thin films of electrochemical exfoliated graphene. in RSC Advances
Royal Soc Chemistry, Cambridge., 6(45), 39275-39283.
https://doi.org/10.1039/c6ra04250c

Marković Z, Budimir MD, Kepić DP, Holclajtner-Antunović I, Marinović-Cincović M, Dramicanin MD, Spasojević V, Perusko D, Spitalsky Z, Micusik M, Pavlović V, 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, Z.M., Budimir, Milica D., Kepić, Dejan P., Holclajtner-Antunović, Ivanka, Marinović-Cincović, Milena, Dramicanin, Miroslav D., Spasojević, V.D., Perusko, Davor, Spitalsky, Z., Micusik, M., Pavlović, Vladimir, 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  - Vujković, Milica J.
AU  - Vidoeski, Bojan A.
AU  - Jovanović, Svetlana P.
AU  - Bajuk-Bogdanović, Danica
AU  - Budimir, Milica D.
AU  - Marković, Zoran M.
AU  - Pavlović, Vladimir
AU  - Todorović-Marković, Biljana
AU  - Holclajtner-Antunović, Ivanka
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4097
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.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Electrochimica Acta
T1  - Synthesis and characterization of electrochemically exfoliated graphene-molybdophosphate hybrid materials for charge storage devices
EP  - 46
SP  - 34
VL  - 217
DO  - 10.1016/j.electacta.2016.09.067
ER  - 

@article{
author = "Vujković, Milica J. and Vidoeski, Bojan A. and Jovanović, Svetlana P. and Bajuk-Bogdanović, Danica and Budimir, Milica D. and Marković, Zoran M. and Pavlović, Vladimir and Todorović-Marković, Biljana and Holclajtner-Antunović, Ivanka",
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.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Electrochimica Acta",
title = "Synthesis and characterization of electrochemically exfoliated graphene-molybdophosphate hybrid materials for charge storage devices",
pages = "46-34",
volume = "217",
doi = "10.1016/j.electacta.2016.09.067"
}

Vujković, M. J., Vidoeski, B. A., Jovanović, S. P., Bajuk-Bogdanović, D., Budimir, M. D., Marković, Z. M., Pavlović, V., Todorović-Marković, B.,& Holclajtner-Antunović, I.. (2016). Synthesis and characterization of electrochemically exfoliated graphene-molybdophosphate hybrid materials for charge storage devices. in Electrochimica Acta
Pergamon-Elsevier Science Ltd, Oxford., 217, 34-46.
https://doi.org/10.1016/j.electacta.2016.09.067

Vujković MJ, Vidoeski BA, Jovanović SP, Bajuk-Bogdanović D, Budimir MD, Marković ZM, Pavlović V, Todorović-Marković B, Holclajtner-Antunović I. 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 J., Vidoeski, Bojan A., Jovanović, Svetlana P., Bajuk-Bogdanović, Danica, Budimir, Milica D., Marković, Zoran M., Pavlović, Vladimir, Todorović-Marković, Biljana, Holclajtner-Antunović, Ivanka, "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  - Prekodravac, Jovana
AU  - Marković, Zoran
AU  - Jovanović, Svetlana P.
AU  - Holclajtner-Antunović, Ivanka
AU  - Pavlović, Vladimir
AU  - Todorović-Marković, Biljana
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4142
AB  - In this work, we present Raman spectroscopy study of graphene thin films obtained by rapid thermal annealing in vacuum. As a carbon source, we used spectroscopic graphite electrodes cut into small pieces on top of which we deposited copper/nickel thin films. Samples were then annealed at different annealing temperatures (600, 700, 800 and 900 degrees C) for 30 min. Raman spectroscopy study showed that annealing at lower annealing temperatures (600 and 700 degrees C) leads to formation of single layer graphene thin films with relatively high level of defects. Annealing at higher annealing temperatures (800 and 900 degrees C), on the other hand, resulted in formation of homogenous multilayer graphene thin films. From Raman spectra, we also concluded that samples annealed at higher annealing temperatures had lower level of defects compared to the samples annealed at lower annealing temperatures.
PB  - Springer, Dordrecht
T2  - Optical and Quantum Electronics
T1  - Raman spectroscopy study of graphene thin films synthesized from solid precursor
IS  - 2
VL  - 48
DO  - 10.1007/s11082-016-0385-5
ER  - 

@article{
author = "Prekodravac, Jovana and Marković, Zoran and Jovanović, Svetlana P. and Holclajtner-Antunović, Ivanka and Pavlović, Vladimir and Todorović-Marković, Biljana",
year = "2016",
abstract = "In this work, we present Raman spectroscopy study of graphene thin films obtained by rapid thermal annealing in vacuum. As a carbon source, we used spectroscopic graphite electrodes cut into small pieces on top of which we deposited copper/nickel thin films. Samples were then annealed at different annealing temperatures (600, 700, 800 and 900 degrees C) for 30 min. Raman spectroscopy study showed that annealing at lower annealing temperatures (600 and 700 degrees C) leads to formation of single layer graphene thin films with relatively high level of defects. Annealing at higher annealing temperatures (800 and 900 degrees C), on the other hand, resulted in formation of homogenous multilayer graphene thin films. From Raman spectra, we also concluded that samples annealed at higher annealing temperatures had lower level of defects compared to the samples annealed at lower annealing temperatures.",
publisher = "Springer, Dordrecht",
journal = "Optical and Quantum Electronics",
title = "Raman spectroscopy study of graphene thin films synthesized from solid precursor",
number = "2",
volume = "48",
doi = "10.1007/s11082-016-0385-5"
}

Prekodravac, J., Marković, Z., Jovanović, S. P., Holclajtner-Antunović, I., Pavlović, V.,& Todorović-Marković, B.. (2016). Raman spectroscopy study of graphene thin films synthesized from solid precursor. in Optical and Quantum Electronics
Springer, Dordrecht., 48(2).
https://doi.org/10.1007/s11082-016-0385-5

Prekodravac J, Marković Z, Jovanović SP, Holclajtner-Antunović I, Pavlović V, Todorović-Marković B. Raman spectroscopy study of graphene thin films synthesized from solid precursor. in Optical and Quantum Electronics. 2016;48(2).
doi:10.1007/s11082-016-0385-5 .

Prekodravac, Jovana, Marković, Zoran, Jovanović, Svetlana P., Holclajtner-Antunović, Ivanka, Pavlović, Vladimir, Todorović-Marković, Biljana, "Raman spectroscopy study of graphene thin films synthesized from solid precursor" in Optical and Quantum Electronics, 48, no. 2 (2016),
https://doi.org/10.1007/s11082-016-0385-5 . .

TY  - JOUR
AU  - Jovanović, Svetlana P.
AU  - Syrgiannis, Zois
AU  - Marković, Zoran M.
AU  - Bonasera, Aurelio
AU  - Kepić, Dejan P.
AU  - Budimir, Milica D.
AU  - Milivojević, Dušan D.
AU  - Spasojević, Vuk D.
AU  - Dramicanin, Miroslav D.
AU  - Pavlović, Vladimir
AU  - Todorović-Marković, Biljana
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3755
AB  - Herein, the ability of gamma irradiation to enhance the photoluminescence properties of graphene quantum dots (GQDs) was investigated. Different doses of gamma-irradiation were used on GQDs to examine the way in which their structure and optical properties can be affected. The photoluminescence quantum yield was increased six times for the GQDs irradiated with high doses compared to the nonirradiated material. Both photoluminescence lifetime and values of optical band gap were increased with the dose of applied gamma irradiation. In addition, the exploitation of the gamma-irradiated GQDs as photosensitizers was examined by monitoring the production of singlet oxygen under UV illumination. The main outcome was that the GQDs irradiated at lower doses act as better photoproducers than the ones irradiated at higher doses. These results corroborate that the structural changes caused by gamma irradiation have a direct impact on GQD ability to produce singlet oxygen and their photostability under prolonged UV illumination. This makes low-dose irradiated GQDs promising candidates for photodynamic therapy.
PB  - Amer Chemical Soc, Washington
T2  - ACS Applied Materials & Interfaces
T1  - Modification of Structural and Luminescence Properties of Graphene Quantum Dots by Gamma Irradiation and Their Application in a Photodynamic Therapy
EP  - 25874
IS  - 46
SP  - 25865
VL  - 7
DO  - 10.1021/acsami.5b08226
ER  - 

@article{
author = "Jovanović, Svetlana P. and Syrgiannis, Zois and Marković, Zoran M. and Bonasera, Aurelio and Kepić, Dejan P. and Budimir, Milica D. and Milivojević, Dušan D. and Spasojević, Vuk D. and Dramicanin, Miroslav D. and Pavlović, Vladimir and Todorović-Marković, Biljana",
year = "2015",
abstract = "Herein, the ability of gamma irradiation to enhance the photoluminescence properties of graphene quantum dots (GQDs) was investigated. Different doses of gamma-irradiation were used on GQDs to examine the way in which their structure and optical properties can be affected. The photoluminescence quantum yield was increased six times for the GQDs irradiated with high doses compared to the nonirradiated material. Both photoluminescence lifetime and values of optical band gap were increased with the dose of applied gamma irradiation. In addition, the exploitation of the gamma-irradiated GQDs as photosensitizers was examined by monitoring the production of singlet oxygen under UV illumination. The main outcome was that the GQDs irradiated at lower doses act as better photoproducers than the ones irradiated at higher doses. These results corroborate that the structural changes caused by gamma irradiation have a direct impact on GQD ability to produce singlet oxygen and their photostability under prolonged UV illumination. This makes low-dose irradiated GQDs promising candidates for photodynamic therapy.",
publisher = "Amer Chemical Soc, Washington",
journal = "ACS Applied Materials & Interfaces",
title = "Modification of Structural and Luminescence Properties of Graphene Quantum Dots by Gamma Irradiation and Their Application in a Photodynamic Therapy",
pages = "25874-25865",
number = "46",
volume = "7",
doi = "10.1021/acsami.5b08226"
}

Jovanović, S. P., Syrgiannis, Z., Marković, Z. M., Bonasera, A., Kepić, D. P., Budimir, M. D., Milivojević, D. D., Spasojević, V. D., Dramicanin, M. D., Pavlović, V.,& Todorović-Marković, B.. (2015). Modification of Structural and Luminescence Properties of Graphene Quantum Dots by Gamma Irradiation and Their Application in a Photodynamic Therapy. in ACS Applied Materials & Interfaces
Amer Chemical Soc, Washington., 7(46), 25865-25874.
https://doi.org/10.1021/acsami.5b08226

Jovanović SP, Syrgiannis Z, Marković ZM, Bonasera A, Kepić DP, Budimir MD, Milivojević DD, Spasojević VD, Dramicanin MD, Pavlović V, Todorović-Marković B. Modification of Structural and Luminescence Properties of Graphene Quantum Dots by Gamma Irradiation and Their Application in a Photodynamic Therapy. in ACS Applied Materials & Interfaces. 2015;7(46):25865-25874.
doi:10.1021/acsami.5b08226 .

Jovanović, Svetlana P., Syrgiannis, Zois, Marković, Zoran M., Bonasera, Aurelio, Kepić, Dejan P., Budimir, Milica D., Milivojević, Dušan D., Spasojević, Vuk D., Dramicanin, Miroslav D., Pavlović, Vladimir, Todorović-Marković, Biljana, "Modification of Structural and Luminescence Properties of Graphene Quantum Dots by Gamma Irradiation and Their Application in a Photodynamic Therapy" in ACS Applied Materials & Interfaces, 7, no. 46 (2015):25865-25874,
https://doi.org/10.1021/acsami.5b08226 . .

TY  - JOUR
AU  - Prekodravac, Jovana
AU  - Marković, Zoran
AU  - Jovanović, Svetlana P.
AU  - Budimir, Milica D.
AU  - Perusko, Davor
AU  - Holclajtner-Antunović, Ivanka
AU  - Pavlović, Vladimir
AU  - Syrgiannis, Zois
AU  - Bonasera, Aurelio
AU  - Todorović-Marković, Biljana
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3685
AB  - In this paper, we performed synthesis of graphene thin films by rapid thermal annealing (RTA) of thin nickel copper (Ni/Cu) layers deposited on spectroscopic graphite as a carbon source. Furthermore, we investigated the effect of annealing temperature and annealing time on formation and quality of synthesized graphene films. Raman spectroscopy study showed that annealing at lower temperatures results in formation of monolayer graphene films, while annealing at higher temperatures results in formation of multilayer graphene films. We used Raman mapping to determine the distribution of graphene sheets. Surface morphology of graphene thin films was investigated by atomic force microscopy and scanning electron microscopy with EDS probe.
PB  - Elsevier Science Sa, Lausanne
T2  - Synthetic Metals
T1  - The effect of annealing temperature and time on synthesis of graphene thin films by rapid thermal annealing
EP  - 467
SP  - 461
VL  - 209
DO  - 10.1016/j.synthmet.2015.08.015
ER  - 

@article{
author = "Prekodravac, Jovana and Marković, Zoran and Jovanović, Svetlana P. and Budimir, Milica D. and Perusko, Davor and Holclajtner-Antunović, Ivanka and Pavlović, Vladimir and Syrgiannis, Zois and Bonasera, Aurelio and Todorović-Marković, Biljana",
year = "2015",
abstract = "In this paper, we performed synthesis of graphene thin films by rapid thermal annealing (RTA) of thin nickel copper (Ni/Cu) layers deposited on spectroscopic graphite as a carbon source. Furthermore, we investigated the effect of annealing temperature and annealing time on formation and quality of synthesized graphene films. Raman spectroscopy study showed that annealing at lower temperatures results in formation of monolayer graphene films, while annealing at higher temperatures results in formation of multilayer graphene films. We used Raman mapping to determine the distribution of graphene sheets. Surface morphology of graphene thin films was investigated by atomic force microscopy and scanning electron microscopy with EDS probe.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Synthetic Metals",
title = "The effect of annealing temperature and time on synthesis of graphene thin films by rapid thermal annealing",
pages = "467-461",
volume = "209",
doi = "10.1016/j.synthmet.2015.08.015"
}

Prekodravac, J., Marković, Z., Jovanović, S. P., Budimir, M. D., Perusko, D., Holclajtner-Antunović, I., Pavlović, V., Syrgiannis, Z., Bonasera, A.,& Todorović-Marković, B.. (2015). The effect of annealing temperature and time on synthesis of graphene thin films by rapid thermal annealing. in Synthetic Metals
Elsevier Science Sa, Lausanne., 209, 461-467.
https://doi.org/10.1016/j.synthmet.2015.08.015

Prekodravac J, Marković Z, Jovanović SP, Budimir MD, Perusko D, Holclajtner-Antunović I, Pavlović V, Syrgiannis Z, Bonasera A, Todorović-Marković B. The effect of annealing temperature and time on synthesis of graphene thin films by rapid thermal annealing. in Synthetic Metals. 2015;209:461-467.
doi:10.1016/j.synthmet.2015.08.015 .

Prekodravac, Jovana, Marković, Zoran, Jovanović, Svetlana P., Budimir, Milica D., Perusko, Davor, Holclajtner-Antunović, Ivanka, Pavlović, Vladimir, Syrgiannis, Zois, Bonasera, Aurelio, Todorović-Marković, Biljana, "The effect of annealing temperature and time on synthesis of graphene thin films by rapid thermal annealing" in Synthetic Metals, 209 (2015):461-467,
https://doi.org/10.1016/j.synthmet.2015.08.015 . .

TY  - JOUR
AU  - Kepić, Dejan P.
AU  - Marković, Zoran M.
AU  - Jovanović, Svetlana P.
AU  - Perusko, Davor
AU  - Budimir, Milica D.
AU  - Holclajtner-Antunović, Ivanka
AU  - Pavlović, Vladimir
AU  - Todorović-Marković, Biljana
PY  - 2014
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3443
AB  - Enhanced conductivity, transparency and stability are the most important factors to consider in order to prepare electrodes for optoelectronic devices. In this paper, we investigated the properties of poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) films doped with graphene and graphene quantum dots. Samples were deposited by spin-coating onto glass substrates. Thin films were characterized by UV-vis and Raman spectroscopy, atomic force microscopy (AFM), scanning electron microscopy (SEM) and four-point probe measurements. It was found that both graphene and graphene quantum dots improve the conductivity of PEDOT:PSS films with only small decrease in transparency. AFM and SEM analysis showed homogenous distribution of spherical nanoparticles of graphene quantum dots and irregular shaped nanoparticles of graphene in PEDOT:PSS.
PB  - Elsevier Science Sa, Lausanne
T2  - Synthetic Metals
T1  - Preparation of PEDOT:PSS thin films doped with graphene and graphene quantum dots
EP  - 154
SP  - 150
VL  - 198
DO  - 10.1016/j.synthmet.2014.10.017
ER  - 

@article{
author = "Kepić, Dejan P. and Marković, Zoran M. and Jovanović, Svetlana P. and Perusko, Davor and Budimir, Milica D. and Holclajtner-Antunović, Ivanka and Pavlović, Vladimir and Todorović-Marković, Biljana",
year = "2014",
abstract = "Enhanced conductivity, transparency and stability are the most important factors to consider in order to prepare electrodes for optoelectronic devices. In this paper, we investigated the properties of poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) films doped with graphene and graphene quantum dots. Samples were deposited by spin-coating onto glass substrates. Thin films were characterized by UV-vis and Raman spectroscopy, atomic force microscopy (AFM), scanning electron microscopy (SEM) and four-point probe measurements. It was found that both graphene and graphene quantum dots improve the conductivity of PEDOT:PSS films with only small decrease in transparency. AFM and SEM analysis showed homogenous distribution of spherical nanoparticles of graphene quantum dots and irregular shaped nanoparticles of graphene in PEDOT:PSS.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Synthetic Metals",
title = "Preparation of PEDOT:PSS thin films doped with graphene and graphene quantum dots",
pages = "154-150",
volume = "198",
doi = "10.1016/j.synthmet.2014.10.017"
}

Kepić, D. P., Marković, Z. M., Jovanović, S. P., Perusko, D., Budimir, M. D., Holclajtner-Antunović, I., Pavlović, V.,& Todorović-Marković, B.. (2014). Preparation of PEDOT:PSS thin films doped with graphene and graphene quantum dots. in Synthetic Metals
Elsevier Science Sa, Lausanne., 198, 150-154.
https://doi.org/10.1016/j.synthmet.2014.10.017

Kepić DP, Marković ZM, Jovanović SP, Perusko D, Budimir MD, Holclajtner-Antunović I, Pavlović V, Todorović-Marković B. Preparation of PEDOT:PSS thin films doped with graphene and graphene quantum dots. in Synthetic Metals. 2014;198:150-154.
doi:10.1016/j.synthmet.2014.10.017 .

Kepić, Dejan P., Marković, Zoran M., Jovanović, Svetlana P., Perusko, Davor, Budimir, Milica D., Holclajtner-Antunović, Ivanka, Pavlović, Vladimir, Todorović-Marković, Biljana, "Preparation of PEDOT:PSS thin films doped with graphene and graphene quantum dots" in Synthetic Metals, 198 (2014):150-154,
https://doi.org/10.1016/j.synthmet.2014.10.017 . .

TY  - CONF
AU  - Prekodravac, J.R.
AU  - Jovanović, S.P.
AU  - Holclajtner-Antunović, Ivanka
AU  - Perusko, Davor
AU  - Pavlović, Vladimir
AU  - Tosić, D.D.
AU  - Todorović-Marković, Biljana
AU  - Marković, Z.M.
PY  - 2014
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3475
AB  - In this paper we present synthesis of monolayer graphene islands. These films are deposited through nickel catalyzed transformation of fullerol and graphene quantum dots. Carbon doped nickel films are produced by autocatalytic chemical deposition. Upon rapid thermal annealing, graphene films are formed. Different characterization techniques are applied: Raman spectroscopy, scanning electron and atomic force microscopy. Raman spectroscopy analysis confirmed the formation of monolayer graphene films. Microscopy analysis revealed formation of monolayer islands.
PB  - IOP Publishing Ltd, Bristol
C3  - Physica Scripta
T1  - Monolayer graphene films through nickel catalyzed transformation of fullerol and graphene quantum dots: a Raman spectroscopy study
VL  - T162
DO  - 10.1088/0031-8949/2014/T162/014030
ER  - 

@conference{
author = "Prekodravac, J.R. and Jovanović, S.P. and Holclajtner-Antunović, Ivanka and Perusko, Davor and Pavlović, Vladimir and Tosić, D.D. and Todorović-Marković, Biljana and Marković, Z.M.",
year = "2014",
abstract = "In this paper we present synthesis of monolayer graphene islands. These films are deposited through nickel catalyzed transformation of fullerol and graphene quantum dots. Carbon doped nickel films are produced by autocatalytic chemical deposition. Upon rapid thermal annealing, graphene films are formed. Different characterization techniques are applied: Raman spectroscopy, scanning electron and atomic force microscopy. Raman spectroscopy analysis confirmed the formation of monolayer graphene films. Microscopy analysis revealed formation of monolayer islands.",
publisher = "IOP Publishing Ltd, Bristol",
journal = "Physica Scripta",
title = "Monolayer graphene films through nickel catalyzed transformation of fullerol and graphene quantum dots: a Raman spectroscopy study",
volume = "T162",
doi = "10.1088/0031-8949/2014/T162/014030"
}

Prekodravac, J.R., Jovanović, S.P., Holclajtner-Antunović, I., Perusko, D., Pavlović, V., Tosić, D.D., Todorović-Marković, B.,& Marković, Z.M.. (2014). Monolayer graphene films through nickel catalyzed transformation of fullerol and graphene quantum dots: a Raman spectroscopy study. in Physica Scripta
IOP Publishing Ltd, Bristol., T162.
https://doi.org/10.1088/0031-8949/2014/T162/014030

Prekodravac J, Jovanović S, Holclajtner-Antunović I, Perusko D, Pavlović V, Tosić D, Todorović-Marković B, Marković Z. Monolayer graphene films through nickel catalyzed transformation of fullerol and graphene quantum dots: a Raman spectroscopy study. in Physica Scripta. 2014;T162.
doi:10.1088/0031-8949/2014/T162/014030 .

Prekodravac, J.R., Jovanović, S.P., Holclajtner-Antunović, Ivanka, Perusko, Davor, Pavlović, Vladimir, Tosić, D.D., Todorović-Marković, Biljana, Marković, Z.M., "Monolayer graphene films through nickel catalyzed transformation of fullerol and graphene quantum dots: a Raman spectroscopy study" in Physica Scripta, T162 (2014),
https://doi.org/10.1088/0031-8949/2014/T162/014030 . .

TY  - CHAP
AU  - Marković, Z.
AU  - Kleut, D.
AU  - Babić, Biljana M.
AU  - Holclajtner-Antunović, Ivanka
AU  - Pavlović, Vladimir
AU  - Todorović-Marković, Biljana
PY  - 2013
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3185
AB  - This chapter presents the results of structural properties of carbon-doped cryogel thin fi lms derived from resorcinol formaldehyde (RF). The RF cryogels were doped by single-wall carbon nanotubes (SWCNTs), graphene and graphene quantum dots (GQDs). Different characterization techniques were used to investigate structural properties of these fi lms: atomic force microscopy (AFM), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy. Raman spectroscopy was performed using two excitation laser energies in the visible range in order to investigate the effect of ceramic glass substrate on the Raman features of investigated carbon-doped RF cryogel thin fi lms. The particle size of these fi lms was determined by atomic force microscopy and scanning electron microscopy.
PB  - wiley
T2  - Advanced Carbon Materials and Technology
T1  - Carbon-Doped Cryogel Thin Films Derived from Resorcinol Formaldehyde
EP  - 485
SP  - 475
DO  - 10.1002/9781118895399.ch12
ER  - 

@inbook{
author = "Marković, Z. and Kleut, D. and Babić, Biljana M. and Holclajtner-Antunović, Ivanka and Pavlović, Vladimir and Todorović-Marković, Biljana",
year = "2013",
abstract = "This chapter presents the results of structural properties of carbon-doped cryogel thin fi lms derived from resorcinol formaldehyde (RF). The RF cryogels were doped by single-wall carbon nanotubes (SWCNTs), graphene and graphene quantum dots (GQDs). Different characterization techniques were used to investigate structural properties of these fi lms: atomic force microscopy (AFM), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy. Raman spectroscopy was performed using two excitation laser energies in the visible range in order to investigate the effect of ceramic glass substrate on the Raman features of investigated carbon-doped RF cryogel thin fi lms. The particle size of these fi lms was determined by atomic force microscopy and scanning electron microscopy.",
publisher = "wiley",
journal = "Advanced Carbon Materials and Technology",
booktitle = "Carbon-Doped Cryogel Thin Films Derived from Resorcinol Formaldehyde",
pages = "485-475",
doi = "10.1002/9781118895399.ch12"
}

Marković, Z., Kleut, D., Babić, B. M., Holclajtner-Antunović, I., Pavlović, V.,& Todorović-Marković, B.. (2013). Carbon-Doped Cryogel Thin Films Derived from Resorcinol Formaldehyde. in Advanced Carbon Materials and Technology
wiley., 475-485.
https://doi.org/10.1002/9781118895399.ch12

Marković Z, Kleut D, Babić BM, Holclajtner-Antunović I, Pavlović V, Todorović-Marković B. Carbon-Doped Cryogel Thin Films Derived from Resorcinol Formaldehyde. in Advanced Carbon Materials and Technology. 2013;:475-485.
doi:10.1002/9781118895399.ch12 .

Marković, Z., Kleut, D., Babić, Biljana M., Holclajtner-Antunović, Ivanka, Pavlović, Vladimir, Todorović-Marković, Biljana, "Carbon-Doped Cryogel Thin Films Derived from Resorcinol Formaldehyde" in Advanced Carbon Materials and Technology (2013):475-485,
https://doi.org/10.1002/9781118895399.ch12 . .

TY  - JOUR
AU  - Kleut, D.
AU  - Jovanović, S.
AU  - Marković, Z.
AU  - Kepić, Dejan P.
AU  - Tosić, D.
AU  - Romcević, N.
AU  - Marinović-Cincović, Milena
AU  - Dramicanin, Miroslav D.
AU  - Holclajtner-Antunović, Ivanka
AU  - Pavlović, Vladimir
AU  - Drazić, G.
AU  - Milosavljević, M.
AU  - Todorović-Marković, Biljana
PY  - 2012
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2980
AB  - A systematic study of the gamma irradiation effects on single wall carbon nanotube (SWCNT) structure was conducted. Nanotubes were exposed to different doses of gamma irradiation in three media. Irradiation was carried out in air, water and aqueous ammonia. Thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), elemental analysis (EA) and Raman spectroscopy confirmed the changes in the SWCNT structure. TGA measurements showed the highest percentage of introduced groups for the SWCNTs irradiated with 100 kGy. FTIR spectroscopy provided evidence for the attachment of hydroxyl, carboxyl and nitrile functional groups to the SWCNT sidewalls. Those groups were confirmed by EA. All irradiated SWCNTs had hydroxyl and carboxyl groups irrelevant to media used for irradiation, but nitrile functional groups were only identified in SWCNTs irradiated in aqueous ammonia. Raman spectroscopy indicated that the degree of disorder in the carbon nanotube structure correlates with the irradiation dose. For the nanotubes irradiated with the dose of 100 kGy, the Raman I-D/I-G ratio was three times higher than for the pristine ones. Atomic force microscopy showed a 50% decrease in nanotube length at a radiation dose of 100 kGy. Scanning and transmission electron microscopies showed significant changes in the morphology and structure of gamma irradiated SWCNTs.
PB  - Elsevier Science Inc, New York
T2  - Materials Characterization
T1  - Comparison of structural properties of pristine and gamma irradiated single-wall carbon nanotubes: Effects of medium and irradiation dose
EP  - 45
SP  - 37
VL  - 72
DO  - 10.1016/j.matchar.2012.07.002
ER  - 

@article{
author = "Kleut, D. and Jovanović, S. and Marković, Z. and Kepić, Dejan P. and Tosić, D. and Romcević, N. and Marinović-Cincović, Milena and Dramicanin, Miroslav D. and Holclajtner-Antunović, Ivanka and Pavlović, Vladimir and Drazić, G. and Milosavljević, M. and Todorović-Marković, Biljana",
year = "2012",
abstract = "A systematic study of the gamma irradiation effects on single wall carbon nanotube (SWCNT) structure was conducted. Nanotubes were exposed to different doses of gamma irradiation in three media. Irradiation was carried out in air, water and aqueous ammonia. Thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), elemental analysis (EA) and Raman spectroscopy confirmed the changes in the SWCNT structure. TGA measurements showed the highest percentage of introduced groups for the SWCNTs irradiated with 100 kGy. FTIR spectroscopy provided evidence for the attachment of hydroxyl, carboxyl and nitrile functional groups to the SWCNT sidewalls. Those groups were confirmed by EA. All irradiated SWCNTs had hydroxyl and carboxyl groups irrelevant to media used for irradiation, but nitrile functional groups were only identified in SWCNTs irradiated in aqueous ammonia. Raman spectroscopy indicated that the degree of disorder in the carbon nanotube structure correlates with the irradiation dose. For the nanotubes irradiated with the dose of 100 kGy, the Raman I-D/I-G ratio was three times higher than for the pristine ones. Atomic force microscopy showed a 50% decrease in nanotube length at a radiation dose of 100 kGy. Scanning and transmission electron microscopies showed significant changes in the morphology and structure of gamma irradiated SWCNTs.",
publisher = "Elsevier Science Inc, New York",
journal = "Materials Characterization",
title = "Comparison of structural properties of pristine and gamma irradiated single-wall carbon nanotubes: Effects of medium and irradiation dose",
pages = "45-37",
volume = "72",
doi = "10.1016/j.matchar.2012.07.002"
}

Kleut, D., Jovanović, S., Marković, Z., Kepić, D. P., Tosić, D., Romcević, N., Marinović-Cincović, M., Dramicanin, M. D., Holclajtner-Antunović, I., Pavlović, V., Drazić, G., Milosavljević, M.,& Todorović-Marković, B.. (2012). Comparison of structural properties of pristine and gamma irradiated single-wall carbon nanotubes: Effects of medium and irradiation dose. in Materials Characterization
Elsevier Science Inc, New York., 72, 37-45.
https://doi.org/10.1016/j.matchar.2012.07.002

Kleut D, Jovanović S, Marković Z, Kepić DP, Tosić D, Romcević N, Marinović-Cincović M, Dramicanin MD, Holclajtner-Antunović I, Pavlović V, Drazić G, Milosavljević M, Todorović-Marković B. Comparison of structural properties of pristine and gamma irradiated single-wall carbon nanotubes: Effects of medium and irradiation dose. in Materials Characterization. 2012;72:37-45.
doi:10.1016/j.matchar.2012.07.002 .

Kleut, D., Jovanović, S., Marković, Z., Kepić, Dejan P., Tosić, D., Romcević, N., Marinović-Cincović, Milena, Dramicanin, Miroslav D., Holclajtner-Antunović, Ivanka, Pavlović, Vladimir, Drazić, G., Milosavljević, M., Todorović-Marković, Biljana, "Comparison of structural properties of pristine and gamma irradiated single-wall carbon nanotubes: Effects of medium and irradiation dose" in Materials Characterization, 72 (2012):37-45,
https://doi.org/10.1016/j.matchar.2012.07.002 . .

TY  - JOUR
AU  - Marković, Z.M.
AU  - Babić, Biljana M.
AU  - Dramicanin, Miroslav D.
AU  - Holclajtner-Antunović, Ivanka
AU  - Pavlović, Vladimir
AU  - Perusko, Davor
AU  - Todorović-Marković, Biljana
PY  - 2012
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2989
AB  - In this paper we report fabrication and characterization of highly conductive carbon cryogel. The carbon cryogels were prepared by the sol-gel polymerization of resorcinol and formaldehyde in an aqueous surfactant stabilized suspension of graphene. Cryogels with varying graphene loading were fabricated and characterized by four-probe method, scanning electron microscopy, Raman and FTIR spectroscopy, XRD and nitrogen porosimetry. Several properties of carbon cryogels were highly dependent on small change of graphene loading. Carbon cryogel with smaller graphene loading has superior electrical conductivity of 133 S/m. Pore radius varies between 1.5 and 10 nm which means that samples are micro- and mesoporous. Significant transfer of charge to graphene layers was observed by Raman spectroscopy.
PB  - Elsevier Science Sa, Lausanne
T2  - Synthetic Metals
T1  - Preparation of highly conductive carbon cryogel based on pristine graphene
EP  - 747
IS  - 9-10
SP  - 743
VL  - 162
DO  - 10.1016/j.synthmet.2012.03.019
ER  - 

@article{
author = "Marković, Z.M. and Babić, Biljana M. and Dramicanin, Miroslav D. and Holclajtner-Antunović, Ivanka and Pavlović, Vladimir and Perusko, Davor and Todorović-Marković, Biljana",
year = "2012",
abstract = "In this paper we report fabrication and characterization of highly conductive carbon cryogel. The carbon cryogels were prepared by the sol-gel polymerization of resorcinol and formaldehyde in an aqueous surfactant stabilized suspension of graphene. Cryogels with varying graphene loading were fabricated and characterized by four-probe method, scanning electron microscopy, Raman and FTIR spectroscopy, XRD and nitrogen porosimetry. Several properties of carbon cryogels were highly dependent on small change of graphene loading. Carbon cryogel with smaller graphene loading has superior electrical conductivity of 133 S/m. Pore radius varies between 1.5 and 10 nm which means that samples are micro- and mesoporous. Significant transfer of charge to graphene layers was observed by Raman spectroscopy.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Synthetic Metals",
title = "Preparation of highly conductive carbon cryogel based on pristine graphene",
pages = "747-743",
number = "9-10",
volume = "162",
doi = "10.1016/j.synthmet.2012.03.019"
}

Marković, Z.M., Babić, B. M., Dramicanin, M. D., Holclajtner-Antunović, I., Pavlović, V., Perusko, D.,& Todorović-Marković, B.. (2012). Preparation of highly conductive carbon cryogel based on pristine graphene. in Synthetic Metals
Elsevier Science Sa, Lausanne., 162(9-10), 743-747.
https://doi.org/10.1016/j.synthmet.2012.03.019

Marković Z, Babić BM, Dramicanin MD, Holclajtner-Antunović I, Pavlović V, Perusko D, Todorović-Marković B. Preparation of highly conductive carbon cryogel based on pristine graphene. in Synthetic Metals. 2012;162(9-10):743-747.
doi:10.1016/j.synthmet.2012.03.019 .

Marković, Z.M., Babić, Biljana M., Dramicanin, Miroslav D., Holclajtner-Antunović, Ivanka, Pavlović, Vladimir, Perusko, Davor, Todorović-Marković, Biljana, "Preparation of highly conductive carbon cryogel based on pristine graphene" in Synthetic Metals, 162, no. 9-10 (2012):743-747,
https://doi.org/10.1016/j.synthmet.2012.03.019 . .