▎ 摘　　要

Graphene oxide nanoparticles/polythreonine polymer as a nano-coating on AZ91E Mg alloy was considered as a new temporary implant for gastrectomy applications. This coating as a novel one is decomposable and has bioviability possessions. Various electrochemical measurements were utilized for corrosion performance estimation of Mg alloy in peritoneal fluid with time of dipping. It was recognized that the nano-coating is fixed for 20 days giving unexpected high corrosion resistance. All experimental outcomes were verified by scanning electron microscope (SEM) and Energy dispersive X-ray (EDX) techniques. Moreover, in vitro antibacterial, and cytotoxicity of metal with and/or without coating utilizing MTT assay for cell viability analysis were achieved.