Effect of the coexistence of albumin and H2O2 on the corrosion of biomedical cobalt alloys in physiological saline

doi:10.1039/c9ra05699h

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋腐蚀与防护研究发展中心

	Effect of the coexistence of albumin and H2O2 on the corrosion of biomedical cobalt alloys in physiological saline
	Xu, Weichen 1,3,4,5; Zhang, Binbin 1,3,4; Yang, Lihui 1,3,4; Ni, Qiancheng 1,3; Li, Yantao 1,3,4; Yu, Fei 2
刊名	RSC ADVANCES
	2019-10-17
卷号	9 期号:57 页码:32954-32965
DOI	10.1039/c9ra05699h
通讯作者	Yu, Fei(feiyu@qdu.edu.cn)
英文摘要	The corrosion of Co-28Cr-6Mo and Co-35Ni-20Cr-10Mo, as biomedical alloys, has been investigated for effects of typical species (albumin and H2O2) in physiological saline, with their coexistence explored for the first time. Electrochemical and long term immersion tests were carried out. It was found that Co alloys were not sensitive to the presence of albumin alone, which slightly promoted anodic dissolution of Co-35Ni-20Cr-10Mo without noticeably affecting Co-28Cr-6Mo and facilitated oxide film dissolution on both alloys. H2O2 led to a clear drop in corrosion resistance, favouring metal release and surface oxide formation and inducing much thicker but less compact oxide films for both alloys. The coexistence of both species resulted in the worst corrosion resistance and most metal release, while the amount and composition of surface oxide remained at a similar level as in the absence of both. The effect of H2O2 inducing low compactness of surface oxides should prevail on deciding the poor corrosion protection ability of passive film, while albumin simultaneously promoted dissolution or inhibited formation of oxides due to H2O2. Corrosion resistance was consistently lower for Co-35Ni-20Cr-10Mo under each condition, the only alloy where the synergistic effect of both species was clearly demonstrated. This work suggests that the complexity of the environment must be considered for corrosion resistance evaluation of biomedical alloys.
资助项目	Natural Science Foundation of Shandong Province, China[ZR2017BEM025] ; Natural Science Foundation of Shandong Province, China[ZR2019QEM011] ; National Natural Science Foundation of China[51701101] ; Applied Basic Research Program of Nantong, China[GY12017020] ; Applied Basic Research Program of Qingdao, China[17-1-1-41-jch]
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000496135200003
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/163873]
专题	海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者	Yu, Fei
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Shandong, Peoples R China 2.Qingdao Univ, Med Coll, Inst Translat Med, Qingdao 266021, Shandong, Peoples R China 3.Pilot Natl Lab Marine Sci & Technol, Open Studio Marine Corros & Protect, Qingdao 266237, Shandong, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Shandong, Peoples R China 5.Chinese Acad Sci, Res Dev Ctr Marine Sci & Technol, Inst Oceanol, Nantong 226019, Peoples R China
推荐引用方式 GB/T 7714	Xu, Weichen,Zhang, Binbin,Yang, Lihui,et al. Effect of the coexistence of albumin and H2O2 on the corrosion of biomedical cobalt alloys in physiological saline[J]. RSC ADVANCES,2019,9(57):32954-32965.
APA	Xu, Weichen,Zhang, Binbin,Yang, Lihui,Ni, Qiancheng,Li, Yantao,&Yu, Fei.(2019).Effect of the coexistence of albumin and H2O2 on the corrosion of biomedical cobalt alloys in physiological saline.RSC ADVANCES,9(57),32954-32965.
MLA	Xu, Weichen,et al."Effect of the coexistence of albumin and H2O2 on the corrosion of biomedical cobalt alloys in physiological saline".RSC ADVANCES 9.57(2019):32954-32965.