Abstract
Samples of reduced graphene oxide aerogels decorated with silver nanoparticles (from 1 to 15 wt %) have been obtained. The reduction of silver ions was performed in the course of the reduction of graphene oxide (GO) and self-assembly of the aerogel with the use of glucose as a green reducing agent. It has been found that all composite graphene aerogel samples GO–Ag have antibacterial properties. The minimum inhibitory concentrations (MICs) of the gram-negative bacteria E. coli and the gram-positive bacteria M. luteus were determined. It was found that the samples GO–Ag10 and GO–Ag15 for E. coli and the samples GO–Ag15 for M. luteus can exhibit both bacteriostatic and bactericidal effects. It was shown that all samples other than GO–Ag15 at MICs effectively inhibited the formation of biofilms of M. luteus bacteria. At the same time, the sample GO–Ag15 at a minimum bactericidal concentration, which is higher than the MIC by a factor of 9.5, effectively destroyed already formed biofilms of M. luteus bacteria.
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Funding
This work was supported by the Ministry of Science and Higher Education of the Russian Federation within the framework of state assignments (state registration no. AAAA-A19-119032690060-9) and the NTI Competence Center “Digital Materials Science: New Materials and Substances” (project “Development of New Functional-Oriented 2D and 3D PCM Including the Use of Graphene and Its Analogues and Methods for Their Production Using Additive Technologies”).
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Translated by V. Makhlyarchuk
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Baskakov, S.A., Mumyatova, V.A., Krasnikova, S.S. et al. Antibacterial Activity of Aerogels of Reduced Graphene Oxide Decorated with Silver Nanoparticles. High Energy Chem 57 (Suppl 2), S268–S277 (2023). https://doi.org/10.1134/S0018143923080039
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DOI: https://doi.org/10.1134/S0018143923080039