Journal
NANOMATERIALS
Volume 12, Issue 12, Pages -Publisher
MDPI
DOI: 10.3390/nano12122096
Keywords
Cu-RGO; Ag-RGO; nanocomposites; facile synthesis; antibacterial; antifungal; cytotoxicity
Categories
Funding
- Bulgarian Scientific Fund [KP-06H 27/17, KP-06-H 59/8]
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In this study, nanocomposites of reduced graphene oxide (RGO) with Cu and Ag were prepared using a facile and environmentally friendly method. The composites exhibited good antimicrobial activity and high cytotoxicity, making them potential candidates for antimicrobial and anticancer agents.
In the present study, we report on the facile prepared nanocomposites of reduced graphene oxide RGO with Cu and Ag. The synthesis was performed through an environmentally friendly and easy method by simultaneous reduction in solutions containing Cu2+ or Ag+ and graphene oxide (GO) using zinc powder as a reducing agent in aqueous acidic media. The composites are characterized by powder X-ray diffraction, low-temperature nitrogen adsorption, X-ray photoelectron and FTIR and Raman spectroscopies, as well as Scanning and Transmission electron microscopies. The antibacterial activity of the composites was tested for Staphylococcus aureus, Escherichia coli and antifungal activity for Candida albicans. The cytotoxicity of the materials was studied towards two types of eukaryotic cells-MDCK II and A549 cell lines. The composites obtained consist of homogeneously distributed Cu and Ag nanoparticles on the surface of graphene sheets and manifest good antimicrobial activity and high cytotoxicity. The results clearly show that both metal-RGO composites can be successfully used as antimicrobial and anticancer agents.
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