The Effect of Exposure to Simulated Body Fluids on Breakdown Potentials
Current methods to evaluate the corrosion resistance of small medical implants are typically based on short-term in vitro tests. While the duration of these tests is kept to a minimum to make it feasible to evaluate a large number of samples in a reasonable time, these methods do not account for the...
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Published in | Journal of materials engineering and performance Vol. 18; no. 5-6; pp. 754 - 759 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
New York
Springer US
01.08.2009
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | Current methods to evaluate the corrosion resistance of small medical implants are typically based on short-term in vitro tests. While the duration of these tests is kept to a minimum to make it feasible to evaluate a large number of samples in a reasonable time, these methods do not account for the long-term changes that can occur in the oxides of metals exposed to biological fluids. Given other electrochemical changes to these materials with time in solution, it is a reasonable question to consider whether breakdown potentials are a fundamental parameter of a material and surface condition. Data on 316L and nitinol wire samples, and nitinol stents, show that breakdown potentials increase with time in solution up to 28 days. The difference between the breakdown potential and rest potentials either increased or exhibited no change. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 1059-9495 1544-1024 |
DOI: | 10.1007/s11665-009-9404-z |