The surface structure and antibacterial property of Ag-containing coating on casting cobalt chromium alloy

VernacularTitle:铸造钴铬合金含银抗菌涂层表面特性及抗菌性能研究
Author: Ruiying LIANG ; Jingdong LI ; Yanping ZHAO ; Yanli XU ; Wenhui WU ; He MENG ; Nannan LIAO
Publication Type:Journal Article
Keywords: Casting alloy; Surface characteristic; Antibacterial property; Adhesion
From: Journal of Practical Stomatology 2014;(5):637-640
CountryChina
Language:Chinese
Abstract: Objective:To study the surface structure and antibacterial property of Ag-containing coating(AgCC)on casting cobalt chromium alloy(Co-Cr).Methods:Plasma spraying technique was adopted to prepare AgCC on Co-Cr.Scanning electron microsco-py,energy dispersive analysis and X-ray diffraction analysis were used to evaluate the surface properties.The antibacterial effects of AgCC against staphylococcus aureus and candida albicans were examined by film attachment method.Fluorescence microscope was a-dopted to evaluate the bacteria adhesion property.Results:AgCC surface was uniform and compact,combined perfectly with sub-strate material.The content of the surface was mainly Ag,Cr and a small amount of Ag2 O and Cr2 O3 .The results of antibacterial as-say showed that on AgCC the number of bacterial colony was fewer(P<0.05)and bacterial adhesion was less than those on Co-Cr(P<0.05).Conclusion:AgCC surface was stable and has antibacterial property.