Influence of bovine serum albumin on corrosion behaviour of pure Zn in phosphate buffered saline
Abstract Zinc (Zn) and its alloys have received increasing attention as new alternative biodegradable metals. However, consensus has not been reached on the corrosion behaviour of Zn. As cardiovascular artery stent material, Zn is supposed to contact with plasma that contains inorganic salts and org...
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doaj-d3a7fa8a7c45402983c66ac24839b8e52021-08-22T11:33:13ZengSpringerJournal of Materials Science: Materials in Medicine0957-45301573-48382021-08-0132911610.1007/s10856-021-06567-xInfluence of bovine serum albumin on corrosion behaviour of pure Zn in phosphate buffered salineLijun Liu0Lili Lu1Hai-Jun Zhang2Lu-Ning Wang3Beijing Advanced Innovation Centre for Materials Genome Engineering, School of Materials Science and Engineering, University of Science and Technology BeijingBeijing Advanced Innovation Centre for Materials Genome Engineering, School of Materials Science and Engineering, University of Science and Technology BeijingNational United Engineering Laboratory for Biomedical Material ModificationBeijing Advanced Innovation Centre for Materials Genome Engineering, School of Materials Science and Engineering, University of Science and Technology BeijingAbstract Zinc (Zn) and its alloys have received increasing attention as new alternative biodegradable metals. However, consensus has not been reached on the corrosion behaviour of Zn. As cardiovascular artery stent material, Zn is supposed to contact with plasma that contains inorganic salts and organic components. Protein is one of the most important constitute in the plasma and could adsorb on the material surface. In this paper, bovine serum albumin (BSA) was used as a typical protein. Influences of BSA on pure Zn corrosion in phosphate buffered saline is investigated as a function of BSA concentrations and immersion durations by electrochemical techniques and surface analysis. Results showed that pure Zn corrosion was progressively accelerated with BSA concentrations (ranging from 0.05 to 5 g L−1) at 0.5 h. With time evolves, formation of phosphates as corrosion product was delayed by BSA adsorption, especially at concentration of 2 g L−1. Within 48 h, the corrosion of pure Zn was alleviated by BSA at concentration of 0.1 g L−1, whereas the corrosion was enhanced after 168 h. Addition of 2 g L−1 BSA has opposite influence on the pure Zn corrosion. Furthermore, schematic corrosion behaviour at protein/Zn interfaces was proposed. This work encourages us to think more about the influence of protein on the material corrosion and helps us to better understand the corrosion behaviour of pure Zn.https://doi.org/10.1007/s10856-021-06567-x |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Lijun Liu Lili Lu Hai-Jun Zhang Lu-Ning Wang |
spellingShingle |
Lijun Liu Lili Lu Hai-Jun Zhang Lu-Ning Wang Influence of bovine serum albumin on corrosion behaviour of pure Zn in phosphate buffered saline Journal of Materials Science: Materials in Medicine |
author_facet |
Lijun Liu Lili Lu Hai-Jun Zhang Lu-Ning Wang |
author_sort |
Lijun Liu |
title |
Influence of bovine serum albumin on corrosion behaviour of pure Zn in phosphate buffered saline |
title_short |
Influence of bovine serum albumin on corrosion behaviour of pure Zn in phosphate buffered saline |
title_full |
Influence of bovine serum albumin on corrosion behaviour of pure Zn in phosphate buffered saline |
title_fullStr |
Influence of bovine serum albumin on corrosion behaviour of pure Zn in phosphate buffered saline |
title_full_unstemmed |
Influence of bovine serum albumin on corrosion behaviour of pure Zn in phosphate buffered saline |
title_sort |
influence of bovine serum albumin on corrosion behaviour of pure zn in phosphate buffered saline |
publisher |
Springer |
series |
Journal of Materials Science: Materials in Medicine |
issn |
0957-4530 1573-4838 |
publishDate |
2021-08-01 |
description |
Abstract Zinc (Zn) and its alloys have received increasing attention as new alternative biodegradable metals. However, consensus has not been reached on the corrosion behaviour of Zn. As cardiovascular artery stent material, Zn is supposed to contact with plasma that contains inorganic salts and organic components. Protein is one of the most important constitute in the plasma and could adsorb on the material surface. In this paper, bovine serum albumin (BSA) was used as a typical protein. Influences of BSA on pure Zn corrosion in phosphate buffered saline is investigated as a function of BSA concentrations and immersion durations by electrochemical techniques and surface analysis. Results showed that pure Zn corrosion was progressively accelerated with BSA concentrations (ranging from 0.05 to 5 g L−1) at 0.5 h. With time evolves, formation of phosphates as corrosion product was delayed by BSA adsorption, especially at concentration of 2 g L−1. Within 48 h, the corrosion of pure Zn was alleviated by BSA at concentration of 0.1 g L−1, whereas the corrosion was enhanced after 168 h. Addition of 2 g L−1 BSA has opposite influence on the pure Zn corrosion. Furthermore, schematic corrosion behaviour at protein/Zn interfaces was proposed. This work encourages us to think more about the influence of protein on the material corrosion and helps us to better understand the corrosion behaviour of pure Zn. |
url |
https://doi.org/10.1007/s10856-021-06567-x |
work_keys_str_mv |
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