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Study of Biodegradation of Pure Magnesium

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Abstract:

Magnesium and its alloys are possible to develop new type of biodegradable medical magnesium alloys by using their active corrosion potential. The bio-corrosion properties of the high pure magnesium in the Hank’s solution were investigated in this paper, the results showed that high pure magnesium had a low corrosion rate and hydrogen release in Hank’s solution, when the pH value of solution was controlled at 7.5, the corrosion rate was under 0.2mm/year, the production of hydrogen was about 0.15ml/cm2, and if the solution wasn’t controlled on pH value, the corrosion rate was about 0.02 mm/year, production of hydrogen was about 0.1ml/cm2 . Result of in vitro Kinetic clotting time test and animal implant prep-test showed that High pure magnesium had good thromboresistant property and tissue compatibility, pure magnesium can biodegrade lowly in animal body and formed surface apatite, which proportion of Ca/P was similar with bone tissue.

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Advanced Biomaterials VII View Preview

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Periodical:

Key Engineering Materials (Volumes 342-343)

Pages:

601-604

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.342-343.601

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Online since:

July 2007

Authors:

Yi Bin Ren, Hao Wang, Jing Jing Huang, Bing Chun Zhang, Ke Yang

Keywords:

Biocompatibility, Biodegradation, Biomaterial, Corrosion, Magnesium

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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