▎ 摘　　要

Graphene nanomaterials have rapidly developed in recent years. However, its antimicrobial activity does not achieve satisfactory effect. During the past years, it has been found that antimicrobial peptides (AMP) have a good inhibitory effect on pathogenic microbes. In this study, we synthesized AMP-grafted graphene oxide (GO) nanosheets, i.e., D28@GO, against the pathogens such as Candida albicans and Escherichia coli. Growth inhibition assays showed that D28@GO had strong inhibitory effect against the pathogens and this toxicity contributes to cell membrane damage caused by interaction between D28@GO and macrobiomolecules. In vivo experiments further showed that D28@GO severely suppressed systemic infections of pathogens. This study provides novel light on development of GO-based antimicrobial materials. (C) 2018 Elsevier B.V. All rights reserved.