Antibacterial potential of electrochemically exfoliated graphene sheets
| Autor: | Dušan Milivojević, Zdenko Špitalský, Biljana M. Todorović Marković, Miroslav D. Dramićanin, Miomir Nikšić, Matej Mičušík, Ivanka Holclajtner-Antunović, Zoran Marković, Vladimir B. Pavlović, Danka Matijasevic, Svetlana Jovanovic |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Analytical chemistry 02 engineering and technology 010402 general chemistry 01 natural sciences law.invention Biomaterials Contact angle symbols.namesake Atomic force microscopy Colloid and Surface Chemistry X-ray photoelectron spectroscopy law Zeta potential Pyrolytic carbon Fourier transform infrared spectroscopy X-photoelectron spectroscopy Antibacterial tests Graphene 021001 nanoscience & nanotechnology Exfoliation joint 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Chemical engineering symbols Exfoliated graphene 0210 nano-technology Raman spectroscopy Scanning electron microscopy |
| Zdroj: | Journal of Colloid and Interface Science |
| Popis: | Electrochemically exfoliated graphene is functionalized graphene with potential application in biomedicine. Two most relevant biological features of this material are its electrical conductivity and excellent water dispersibility. In this study we have tried to establish the correlation between graphene structure and its antibacterial properties. The exfoliation process was performed in a two electrode-highly oriented pyrolytic graphite electrochemical cell. Solution of ammonium persulfate was used as an electrolyte. Exfoliated graphene sheets were dispersed in aqueous media and characterized by atomic force microscopy, scanning electron microscopy, Raman spectroscopy, Fourier transform infrared spectroscopy, X photoelectron spectroscopy, X-ray diffraction, electron paramagnetic resonance, zeta potential, contact angle measurements and surface energy. Antibacterial assays have shown lack of the significant antibacterial activity. Major effect on bacteria was slight change of bacteria morphology. Membrane remained intact despite significant change of chemical content of membrane components. (C) 2017 Elsevier Inc. All rights reserved. |
| Databáze: | OpenAIRE |
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