滑石
纳米材料
抗菌活性
纳米技术
纳米颗粒
集聚经济
材料科学
抗菌剂
纳米复合材料
化学工程
化学
细菌
有机化学
冶金
工程类
生物
遗传学
作者
Haiyan Wu,Yanting Meng,Menghan Yu,Huaming Yang
标识
DOI:10.1016/j.clay.2023.107024
摘要
The overuse or abuse of antibacterial drugs has led to serious health problems. At present, among various antimicrobial materials (natural, organic, inorganic, etc.), inorganic antimicrobial materials, especially ZnO, have received widespread attention. However, an important factor that influences the function of nanoparticles is agglomeration. The agglomeration-sensitive nature of ZnO compromises its antibacterial properties. Here, talc is used as a substrate to control the size and dispersion of ZnO, forming composite minerals with excellent antibacterial properties against both Escherichia coli and Staphylococcus aureus. According to transmission electron microscopy, ZnO/talc is easily adhered to bacterial cells, whereas atomic force microscopy reveals that antibacterial effects are caused by non-covalent interactions between ZnO/talc and bacterial membranes. The comprehensive investigation of antibacterial performance and interfacial interaction is conducive to our understanding of the antibacterial mechanism of inorganic compounds, and also provides new perspectives on the biological effects of inorganic nanomaterials.
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