Modification of graphene oxide surfaces with 12-molybdophosphoric acid: Structural and antibacterial study
Samo za registrovane korisnike
2018
Autori
Jovanović, Svetlana P.Holclajtner-Antunović, Ivanka D.
Uskoković-Marković, Snežana
Bajuk-Bogdanović, Danica V.
Pavlović, Vladimir B.
Tošić, Dragana
Milenković, Marina
Todorović-Marković, Biljana
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
© 2018 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 bacte...ria: Escherichia coli, 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.
Ključne reči:
12-Molybdophosphoric acid / Antibacterial properties / Atomic force microscopy / Graphene oxide / Infrared spectroscopy / Raman spectroscopy / Bacteriology / Catalyst activity / Escherichia coli / Nanocomposites / SalmonellaIzvor:
Materials Chemistry and Physics, 2018, 213, 157-167Finansiranje / projekti:
- Elektroprovodni i redoks-aktivni polimeri i oligomeri: sinteza, struktura, svojstva i primena (RS-MESTD-Basic Research (BR or ON)-172043)
- Tanki slojevi jednoslojnih ugljeničnih nanotuba i grafena za primenu u elektronici (RS-MESTD-Basic Research (BR or ON)-172003)
DOI: 10.1016/j.matchemphys.2018.04.011
ISSN: 0254-0584
WoS: 000433648600021
Scopus: 2-s2.0-85045679171
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Jovanović, Svetlana P. AU - Holclajtner-Antunović, Ivanka D. AU - Uskoković-Marković, Snežana AU - Bajuk-Bogdanović, Danica V. AU - Pavlović, Vladimir B. AU - Tošić, Dragana AU - Milenković, Marina AU - Todorović-Marković, Biljana PY - 2018 UR - https://vinar.vin.bg.ac.rs/handle/123456789/7611 AB - © 2018 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 coli, 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. T2 - Materials Chemistry and Physics T1 - Modification of graphene oxide surfaces with 12-molybdophosphoric acid: Structural and antibacterial study VL - 213 SP - 157 EP - 167 DO - 10.1016/j.matchemphys.2018.04.011 ER -
@article{ author = "Jovanović, Svetlana P. and Holclajtner-Antunović, Ivanka D. and Uskoković-Marković, Snežana and Bajuk-Bogdanović, Danica V. and Pavlović, Vladimir B. and Tošić, Dragana and Milenković, Marina and Todorović-Marković, Biljana", year = "2018", abstract = "© 2018 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 coli, 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.", journal = "Materials Chemistry and Physics", title = "Modification of graphene oxide surfaces with 12-molybdophosphoric acid: Structural and antibacterial study", volume = "213", pages = "157-167", doi = "10.1016/j.matchemphys.2018.04.011" }
Jovanović, S. P., Holclajtner-Antunović, I. D., Uskoković-Marković, S., Bajuk-Bogdanović, D. V., Pavlović, V. B., Tošić, 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, 213, 157-167. https://doi.org/10.1016/j.matchemphys.2018.04.011
Jovanović SP, Holclajtner-Antunović ID, Uskoković-Marković S, Bajuk-Bogdanović DV, Pavlović VB, Tošić 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 D., Uskoković-Marković, Snežana, Bajuk-Bogdanović, Danica V., Pavlović, Vladimir B., Tošić, 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 . .