Persistent infections and high medical costs resulted from increasing multi-resistance of pathogenic bacteria to antibiotics has posed a huge challenge to public health.Development and research on antimicrobial agents of the new alga-based nano-silver(AgNPs)is of great significance for the control of pathogenic bacteria.In this paper,the biosynthesis,characterization methods,antimicrobial activity of alga-based AgNPs were reviewed,with the possible mechanism of antimicrobial activity of alga-based AgNPs emphasized,and the future research direction of alga-based AgNPs was forecast,aiming to provide certain research ideas and directions for the in-depth development and application of new antimicrobial materials of alga-based AgNPs.
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