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One-step in situ synthesis of nano silver-hydrotalcite coating for enhanced antibacterial and degradation property of magnesium alloys
Materials Letters ( IF 3 ) Pub Date : 2020-04-01 , DOI: 10.1016/j.matlet.2020.127349
Yun Zhao , Yangping Chen , Wei Wang , Zhiyu Zhou , Shuxin Shi , Wei Li , Minfang Chen , Ze Li

Abstract The nano-silver/Mg-Al hydrotalcite (Ag-LDH) functional coating was prepared onto magnesium alloy by one-step hydrothermal reaction for improving its antibacterial and degrading property. The properties of coating involving microstructure, composition, in vitro degradation, cytocompatibility and antibacterial were also studied. The results show that the nano silver particles and hydrotalcite coating were in-situ formed from the alloy surface during the reacting process. Additionally, the pH variation and antimicrobial test reveal that the fabricated Ag-LDH coating can effectively suppress the degradation of the matrix and significantly inhibit the proliferation of Escherichia coli and Staphylococcus aureus, which is with great potential to improve functionality and corrosion resistance of biomedical magnesium alloy.

中文翻译:

一步原位合成纳米银-水滑石涂层增强镁合金抗菌降解性能

摘要 通过一步水热反应在镁合金表面制备了纳米银/镁铝水滑石(Ag-LDH)功能涂层,以提高其抗菌降解性能。还研究了涂层的微观结构、组成、体外降解、细胞相容性和抗菌性等性能。结果表明,纳米银颗粒和水滑石涂层是在反应过程中从合金表面原位形成的。此外,pH变化和抗菌测试表明,制备的Ag-LDH涂层可以有效抑制基质降解,显着抑制大肠杆菌和金黄色葡萄球菌的增殖,在提高生物医用镁的功能性和耐腐蚀性方面具有巨大潜力。合金。
更新日期:2020-04-01
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