One-step modification method of a superhydrophobic surface for excellent antibacterial capability
作者机构：School of Engineering and TechnologyChina University of Geosciences(Beijing)Beijing 100083China National Key Laboratory for RemanufacturingAcademy of Army Armored ForcesBeijing 100072China National Engineering Research Center for RemanufacturingArmy Academy of Armored ForcesBeijing 100072China
出 版 物：《Friction》 (摩擦（英文版）)
年 卷 期：2023年第11卷第4期
页 面：524-537页
核心收录：
学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学]
基 金：the National Natural Science Foundation of China(52175207) the National Science and Technology Fund Project of China(2020-JCJQ-JJ-378)
主 题：laser etching one-step modification polydopamine(PDA)processing silver nanoparticles(AgNPs) antibacterial superhydrophobic coating
摘 要：In this study,micro/nanostructures are fabricated on the surface of 3Cr13 stainless steel via laser etching,and a superhydrophobic coating with silver nanoparticles(AgNPs)is prepared by utilizing the reduction–adsorption properties of polydopamine(PDA).We investigate the effect of soaking time from the“one-step methodon the reduction of nano-Ag,surface wettability,and antibacterial *** electron microscopy is performed to analyze the distribution of nano-Ag on the surface,whereas X-ray energy dispersive spectroscopy and X-ray photoelectron spectroscopy are used to analyze the crystal structures and chemical compositions of different *** deposited with PDA on their surface are soaked in a 1H,1H,2H,2H-perfluorodecyltriethoxysilane water–alcohol solution containing AgNO3 for 3 ***,a“one-step methodis used to prepare low-adhesion superhydrophobic surfaces containing *** immersion progresses,more AgNPs are deposited onto the *** with the polished surface,the samples prepared via the“one-step methodshow significant antibacterial properties against both gram-negative Escherichia coli and gram-positive Staphylococcus *** antibacterial properties of the surface improve as immersion progresses.
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