Influence of albumin and inorganic ions on electrochemical corrosion behavior of plasma electrolytic oxidation coated magnesium for surgical implants

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	Influence of albumin and inorganic ions on electrochemical corrosion behavior of plasma electrolytic oxidation coated magnesium for surgical implants
	P. Wan; X. Lin; L. L. Tan; L. G. Li; W. R. Li; K. Yang
	2013
发表期刊	Applied Surface Science
ISSN	0169-4332
卷号	282 页码:186-194
摘要	Magnesium and its alloys are of great interest for biodegradable metallic devices. However, the degradation behavior and mechanisms of magnesium treated with coating in physiological environment in the presence of organic compound such as albumin have not been elucidated. In this study, the plasma electrolytic oxidation coated magnesium immersed in four different simulated body fluids: NaCl, PBS and with the addition of albumin to investigate the influence of protein and inorganic ions on degradation behavior by electrochemical methods. The results of electrochemical tests showed that aggressive corrosion took place in 0.9 wt.% NaCl solution; whereas albumin can act as an inhibitor, its adsorption impeded further dissolution of the coating. The mechanism was attributed to the synergistic effect of protein adsorption and precipitation of insoluble salts. (C) 2013 Elsevier B. V. All rights reserved.
部门归属	[wan, peng ; lin, xiao ; tan, lili ; yang, ke] chinese acad sci, inst met res, shenyang 110016, peoples r china. [lin, xiao] chinese acad sci, grad sch, beijing 100049, peoples r china. [li, lugee ; li, weirong] dongguan eontec co ltd, dongguan 523662, guangdong, peoples r china. ; wan, p (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china. ; pwan@imr.ac.cn
关键词	Biodegradation Magnesium Plasma Electrolytic Oxidation Electrochemical Corrosion Albumin Simulated Body-fluids Rare-earth Alloy Microarc Oxidation In-vitro Coatings Resistance Degradation Phosphate Proteins
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语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/71507
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	P. Wan,X. Lin,L. L. Tan,et al. Influence of albumin and inorganic ions on electrochemical corrosion behavior of plasma electrolytic oxidation coated magnesium for surgical implants[J]. Applied Surface Science,2013,282:186-194.
APA	P. Wan,X. Lin,L. L. Tan,L. G. Li,W. R. Li,&K. Yang.(2013).Influence of albumin and inorganic ions on electrochemical corrosion behavior of plasma electrolytic oxidation coated magnesium for surgical implants.Applied Surface Science,282,186-194.
MLA	P. Wan,et al."Influence of albumin and inorganic ions on electrochemical corrosion behavior of plasma electrolytic oxidation coated magnesium for surgical implants".Applied Surface Science 282(2013):186-194.