Stability of passive film and antibacterial durability of Cu-bearing L605 alloy in simulated physiological solutions

doi:10.1007/s12598-020-01599-8

CORC > 金属研究所 > 中国科学院金属研究所

	Stability of passive film and antibacterial durability of Cu-bearing L605 alloy in simulated physiological solutions
	Geng, Peng-Fei 1,2; Zhao, Jin-Long 1; Xi, Tong 1; Yang, Chun-Guang 1; Yang, Ke 1
刊名	RARE METALS
	2020-10-16
页码	8
关键词	L605-Cu alloy Passive film Antibacterial rate Implant
ISSN号	1001-0521
DOI	10.1007/s12598-020-01599-8
通讯作者	Yang, Chun-Guang(cgyang@imr.ac.cn)
英文摘要	In this work, the stability of passive film for long-time immersed Cu-bearing L605 (L605-Cu) alloy in the phosphate buffer solution (PBS) was studied by potentiodynamic polarization and electrochemical impedance spectroscopy. The results showed that the impedance of passive film for L605-Cu alloy experienced an initial increase and subsequent stabilization with the increase in the immersion time. In addition, the plate count method was employed to assess the antibacterial durability of L605-Cu alloy againstEscherichia coliafter long-time immersion. The results indicated that the antibacterial rate of L605-Cu alloy presented a declining tendency with the immersion time prolonging. X-ray photoelectron spectroscopy (XPS) was used to analyze the change of the chemical composition in the passive film on L605-Cu alloy immersed in the PBS for different time. The results showed that Cu content and its compounds in the passive film gradually increased with the immersion time prolonging, hinting declined activity of Cu ions penetrating into the passive film, which resulted in a decrease in the antibacterial performance.
资助项目	National Natural Science Foundation of China[51771199] ; National Natural Science Foundation of China[51631009] ; National Natural Science Foundation of China[51501188] ; National Key Research and Development Program[2016YFB0300205]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	NONFERROUS METALS SOC CHINA
WOS记录号	WOS:000577854600001
资助机构	National Natural Science Foundation of China ; National Key Research and Development Program
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/140932]
专题	金属研究所_中国科学院金属研究所
通讯作者	Yang, Chun-Guang
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Nano Sci & Technol Inst, Suzhou 215300, Peoples R China
推荐引用方式 GB/T 7714	Geng, Peng-Fei,Zhao, Jin-Long,Xi, Tong,et al. Stability of passive film and antibacterial durability of Cu-bearing L605 alloy in simulated physiological solutions[J]. RARE METALS,2020:8.
APA	Geng, Peng-Fei,Zhao, Jin-Long,Xi, Tong,Yang, Chun-Guang,&Yang, Ke.(2020).Stability of passive film and antibacterial durability of Cu-bearing L605 alloy in simulated physiological solutions.RARE METALS,8.
MLA	Geng, Peng-Fei,et al."Stability of passive film and antibacterial durability of Cu-bearing L605 alloy in simulated physiological solutions".RARE METALS (2020):8.