Unveiling the effect of bovine serum albumin on the corrosion resistance of high nitrogen stainless steel for cardiac stents

doi:10.1016/j.jmrt.2024.11.074

IMR OpenIR

	Unveiling the effect of bovine serum albumin on the corrosion resistance of high nitrogen stainless steel for cardiac stents
	Du, Shiyao 1,2; Yan, Hui 1,2; Zhang, Bingchun 1; Tang, Ao 1; Li, Ying 1,3
通讯作者	Tang, Ao() ; Li, Ying(liying@imr.ac.cn)
	2024-11-01
发表期刊	JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
ISSN	2238-7854
卷号	33 页码:7113-7122
摘要	Herein, the effect of bovine serum albumin (BSA) on the corrosion resistance of high nitrogen stainless steel (HNS) is systematically investigated based on experimental characterizations and first-principle calculations. Electrochemical measurements firstly prove that the anodic dissolution rate of HNS has significantly increased due to BSA adsorption and the potential deterioration of the passive film. By subsequent morphology and composition characterizations, it is demonstrated that BSA forms a 1.9 mu m porous adsorption layer on HNS surface via the peptide bond mostly in alpha-helix and beta-turn structure. Furthermore, Mott-Schottky tests confirm that the carrier (cation vacancy) density in the passive film has dramatically risen from 6.29 x 10(21) cm(-3) to 1.97 x 10(22) cm(-3) after BSA adsorption, which could be ascribed to the detachment of Cr atom from its original lattice due to the preference interaction between BSA molecule and Cr atom. Most importantly, such an increased defects will further promote the dissolution process of both the passive film and HNS matrix according to point defect model (PDM), which will definitely undermine the protective ability of the passive film and eventually result in the declined corrosion resistance of HNS in BSA-contained solution.
关键词	High nitrogen stainless steel Bovine serum albumin Adsorption Passive film
资助者	National Natural Science Foun-dation of China
DOI	10.1016/j.jmrt.2024.11.074
收录类别	SCI
语种	英语
资助项目	National Natural Science Foun-dation of China[52271079] ; National Natural Science Foun-dation of China[51871227]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001358463100001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/191751
专题	中国科学院金属研究所
通讯作者	Tang, Ao; Li, Ying
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Northeastern Univ, Shenyang Natl Lab Mat Sci, 3-11 Wenhua Rd, Shenyang 110819, Peoples R China
推荐引用方式 GB/T 7714	Du, Shiyao,Yan, Hui,Zhang, Bingchun,et al. Unveiling the effect of bovine serum albumin on the corrosion resistance of high nitrogen stainless steel for cardiac stents[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2024,33:7113-7122.
APA	Du, Shiyao,Yan, Hui,Zhang, Bingchun,Tang, Ao,&Li, Ying.(2024).Unveiling the effect of bovine serum albumin on the corrosion resistance of high nitrogen stainless steel for cardiac stents.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,33,7113-7122.
MLA	Du, Shiyao,et al."Unveiling the effect of bovine serum albumin on the corrosion resistance of high nitrogen stainless steel for cardiac stents".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 33(2024):7113-7122.