Abstract
In this research, we examined the toxicity of Ag-graphene oxide (GO) nanocomposites against both the Gram-negative bacterium Escherichia coli and Glioblastoma cancer cells (U87MG). Our findings reveal that Ag-GO possesses bactericidal properties, with a minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of 160 µg/mL. The antibacterial efficacy of Ag-GO is contingent on contact time and concentration, making it a potential candidate for integration into materials designed to combat microbial infections. The bactericidal effect of Ag-GO can be attributed to the release of silver ions and the physical damage inflicted by the sharp edges of GO sheets. Furthermore, our study demonstrates that Ag-GO exhibits anticancer activity against U87MG cells, with an IC50 value of 270 µg/mL. The mechanism underlying the anticancer activity of Ag-GO likely involves cell membrane disruption and apoptosis induction. These findings signify the promising medical and biological applications of Ag-graphene oxide nanocomposites.
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The authors gratefully acknowledge the financial support from the Ferdowsi University of Mashhad as well as Mashhad University of Medical Sciences.
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Dr. Marjan Moghayedi: Data curation; Formal analysis; Investigation; Methodology; Resources; Software; Validation; Visualization; Roles/Writing—original draft; Writing—review & editing. Dr. Elaheh K. Goharshadi: Conceptualization; Data curation; Formal analysis; Funding acquisition; Investigation; Methodology; Project administration; Supervision; Validation; Visualization; Writing—review & editing. Dr. Kiarash Ghazvini: Conceptualization; Data curation; Formal analysis; Methodology; Project administration; Supervision; Validation; Visualization; Writing—review & editing. Laleh Ranjbaran: Investigation; Methodology; Software; Validation; Visualization; Roles/Writing—original draft.
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Moghayedi, M., Goharshadi, E.K., Ghazvini, K. et al. Assessment of the cytotoxicity of silver-graphene oxide nanocomposites on Escherichia coli and glioblastoma cancer cells. J IRAN CHEM SOC (2024). https://doi.org/10.1007/s13738-024-03013-x
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DOI: https://doi.org/10.1007/s13738-024-03013-x