Published in Scientific Works. Series C. Veterinary Medicine, Vol. LXV, Issue 1
Written by Gabriel GAJAILA, Iuliana GAJAILA
Graphene is an allotrope of carbon consisting of a single tightly packed layer of sp2 carbon atoms arranged in a hexagonal lattice. Graphene has unique properties that could revolutionize different areas, including biology, biomedical science, environmental agriculture and biotechnology. Many studies are aimed mainly at antibacterial effect of graphene. Antibacterial properties of graphene are manifested by directly interacting with the cell membrane. In this study we aim to investigate the aspects of the role of the biochemical composition of the bacterial cell wall in the manifestation of the antibacterial activity of the monolayer graphene on metallic and non-metallic substrates. Antibacterial activity was tested on Gram-positive and Gram-negative bacteria via cell-viability test. The differences in structure and composition of the Gram-positive and Gram-negative cell wall induce different interactions with monolayer graphene. At the same time, the different substrate for the graphene film significantly influences its antibacterial properties. Our observations from this study provide new insights for future studies.
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