NDLI: Interactions between aggressive ions and the surface of a magnesium-yttrium alloy

Content Provider	IEEE Xplore Digital Library
Author	Johnson, I. Perchy, D. Huinan Liu
Copyright Year	2012
Description	Author affiliation: Dept. of Biol., Univ. of Pittsburgh, Pittsburgh, PA, USA (Perchy, D.) \|\| Dept. of Bioeng., Univ. of California at Riverside, Riverside, CA, USA (Johnson, I.; Huinan Liu)
Abstract	Magnesium alloys possess many desirable properties for biodegradable orthopedic implants. Unfortunately, magnesium degrades too rapidly in vivo. This rapid degradation reduces the alloys' mechanical properties and increases the alkalinity of the local environment. Controlling the degradation rate and mode is an essential step in the development of magnesium based biomaterials. Accomplishing this essential step will require an improved understanding of magnesium alloy degradation. Herein, three interacting factors controlling magnesium degradation were investigated; (1) alloy composition, (2) alloy surface, (3) presence of aggressive ions in the immersion media. The magnesium-yttrium alloy was more susceptible to degradation in water than the high purity magnesium alloy. However, the polished surface magnesium-yttrium alloy had the least susceptibility to degradation in phosphate buffered saline (PBS) among all the sample compositions and surfaces.
Sponsorship	IEEE Eng. Medicine Biol. Soc.
Starting Page	5670
Ending Page	5673
File Size	939232
Page Count	4
File Format	PDF
ISBN	9781424441198
ISSN	1557170X
e-ISBN	9781457717871
DOI	10.1109/EMBC.2012.6347281
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-08-28
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Degradation Magnesium Yttrium Ions Media Surface treatment orthopedic implant magnesiun yttrium PBS degradation aggressive ions polished surface oxidized surface
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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