Surface modification of an Mg-1Ca alloy to slow down its biocorrosion by chitosan

The surface morphologies before and after immersion corrosion test of various chitosan-coated Mg-1Ca alloy samples were studied to investigate the effect of chitosan dip coating on the slowdown of biocorrosion. It showed that the corrosion resistance of the Mg-Ca alloy increased after coating with c...

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Published inBiomedical materials (Bristol) Vol. 4; no. 4; p. 044109
Main Authors Gu, X N, Zheng, Y F, Lan, Q X, Cheng, Y, Zhang, Z X, Xi, T F, Zhang, D Y
Format Journal Article
LanguageEnglish
Published England IOP Publishing 01.08.2009
Subjects
Alloys - chemistry
Body Fluids - chemistry
Chitosan
Corrosion
Hair
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Summary:The surface morphologies before and after immersion corrosion test of various chitosan-coated Mg-1Ca alloy samples were studied to investigate the effect of chitosan dip coating on the slowdown of biocorrosion. It showed that the corrosion resistance of the Mg-Ca alloy increased after coating with chitosan, and depended on both the chitosan molecular weight and layer numbers of coating. The Mg-Ca alloy coated by chitosan with a molecular weight of 2.7 x 10(5) for six layers has smooth and intact surface morphology, and exhibits the highest corrosion resistance in a simulated body fluid.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1748-605X
1748-6041
1748-605X
DOI:10.1088/1748-6041/4/4/044109