Effect of Cu content on the antibacterial activity of titanium-copper sintered alloys

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	Effect of Cu content on the antibacterial activity of titanium-copper sintered alloys
	J. Liu; F. B. Li; C. Liu; H. Y. Wang; B. R. Ren; K. Yang; E. L. Zhang
	2014
发表期刊	Materials Science & Engineering C-Materials for Biological Applications
ISSN	0928-4931
卷号	35 页码:392-400
摘要	The phase constitution and the microstructure Ti-x Cu (x = 2, 5, 10 and 25 wt.%) sintered alloys were investigated by XRD and SEM and the antibacterial activity was assessed in order to investigate the effect of the Cu content on the antibacterial activity. The results have shown that Ti2Cu was synthesized as a main secondary phase in all Ti-Cu alloys while Cu-rich phase was formed in the alloys with 5 wt.% or more copper. Antibacterial tests have showed that the Cu content influences the antibacterial rate seriously and only the alloys with 5 wt.% or high Cu have a strong and stable antibacterial rate, which indicates that the Cu content in Ti-Cu alloys must be at least 5 wt.% to obtain strong and stable antibacterial property. The Cu content also influenced the Cu ion release behavior. High Cu ion release concentration and high Cu ion release rate were observed for Ti-Cu alloys with high Cu content. It was concluded that the Cu content affects the Cu existence and the Cu ion release behavior, which in turn influences the antibacterial property. It was thought that the Cu-rich phase should play an important role in the strong antibacterial activity. (C) 2013 Elsevier B.V. All rights reserved.
部门归属	[liu, jie ; li, fangbing ; liu, cong ; wang, hongying ; ren, baorui ; zhang, erlin] jiamusi univ, jiamusi 154007, peoples r china. [zhang, erlin] northeastern univ, educ minist china, key lab anisotropy & texture mat, shenyang 110819, peoples r china. [liu, jie] qingdao univ, affiliated hosp, coll med, dept prosthodont, qingdao 266003, peoples r china. [yang, ke] chinese acad sci, inst met res, shenyang 110016, peoples r china. ; zhang, el (reprint author), northeastern univ, pob 350,3-11 wenhua rd, shenyang 110819, peoples r china. ; zhangel@atm.neu.edu.cn
关键词	Ti-cu Alloy Antibacterial Activity Cu-rich Phase Galvanic Corrosion Antibacterial Alloy Mechanical-properties Ion-implantation In-vitro Biocompatibility Microstructure Colonization Metals
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/72555
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Liu,F. B. Li,C. Liu,et al. Effect of Cu content on the antibacterial activity of titanium-copper sintered alloys[J]. Materials Science & Engineering C-Materials for Biological Applications,2014,35:392-400.
APA	J. Liu.,F. B. Li.,C. Liu.,H. Y. Wang.,B. R. Ren.,...&E. L. Zhang.(2014).Effect of Cu content on the antibacterial activity of titanium-copper sintered alloys.Materials Science & Engineering C-Materials for Biological Applications,35,392-400.
MLA	J. Liu,et al."Effect of Cu content on the antibacterial activity of titanium-copper sintered alloys".Materials Science & Engineering C-Materials for Biological Applications 35(2014):392-400.