生物相容性
光子上转换
材料科学
硬脂酸
复合数
细菌纤维素
发光
荧光
纤维素
织物
化学工程
核化学
复合材料
化学
有机化学
光电子学
光学
冶金
工程类
物理
作者
Jinliu Wei,Hang Zhao,Liang Zhang,Shouning Chai,Hu Liu,Yao Wang,Juanqin Xue
标识
DOI:10.1016/j.carbpol.2022.119967
摘要
Masks are key to personal protection and their bacteriostatic properties, which are generally overlooked, should be maximized. Towards this goal, a YPS-Pr-Li/BC upconversion antibacterial composite film was prepared by mixing upconversion powder with bacterial cellulose (BC) using a vacuum assisted method. When combined with the low surface energy of stearic acid (STA), the resulting YPS-Pr-Li/BC/STA film had an improved hydrophobic surface. The developed film was characterized by FT-IR, SEM, XRD, and fluorescence spectrophotometry. The results showed that the composite film was successfully prepared and had ultraviolet, visible upconversion luminescence. The bacteriostatic experiments showed that the material had excellent bacteriostatic performance against E. coli and S. aureus under visible light, with a bacteriostatic rate reaching 99 %. The in-vitro cytotoxicity tests showed that YPS-Pr-Li/BC/STA had excellent biocompatibility and could be used in personal protective clothing with close contact with human skin.
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