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  - 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 . .