Modification of graphene oxide surfaces with 12-molybdophosphoric acid: Structural and antibacterial study
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2018
Authors
Jovanović, Svetlana P.Holclajtner-Antunović, Ivanka
Uskoković-Marković, Snežana M.
Bajuk-Bogdanović, Danica
Pavlović, Vladimir
Tosić, Dragana
Milenković, Marina
Todorović-Marković, Biljana
Article (Published version)
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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: Es...cherichia 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.
Keywords:
Graphene oxide / 12-Molybdophosphoric acid / Antibacterial properties / Atomic force microscopy / Infrared spectroscopy / Raman spectroscopySource:
Materials Chemistry and Physics, 2018, 213, 157-167Publisher:
- Elsevier Science Sa, Lausanne
Funding / projects:
- Thin films of single wall carbon nanotubes and graphene for electronic application (RS-172003)
- Electroconducting and redox-active polymers and oligomers: synthesis, structure, properties and applications (RS-172043)
DOI: 10.1016/j.matchemphys.2018.04.011
ISSN: 0254-0584
WoS: 000433648600021
Scopus: 2-s2.0-85045679171
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Poljoprivredni fakultetTY - 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 . .