▎ 摘　　要

The capability to hinder microbial growth on the implant surfaces is of great interest in medical applications. This paper presents our study on the synthesis of zeolite/silver-graphene oxide (Zeo/Ag-GO) nanocomposite to enhance antibacterial activities of bone implants. Zeo/Ag-GO was synthesized using via semi-powder metallurgy and then characterized in terms of microstructure, antibacterial activities, and biocompatibility. Our microstructure results demonstrated that the Ag particles were anchored and uniformly distributed in the composite structure; assessment of antibacterial activity against the Gram-negative Escherichia coli (E. coli) and Gram-positive Staphylococcus aureus (S. aureus) revealed that Zeo/Ag-GO was better than Zeo/Ag, but Zeo has no antimicrobial activity observed; and biocompatibility assays showed that both Zeo/Ag and Zeo/Ag-GO had no negative effect on the proliferation of MG-63, while Zeo/Ag-GO promoted better cell viability. Taken together, Zeo/Ag-GO has great antimicrobial performance with suitable cytocompatibility, thus potentially being used to reduce implant-associated infections.