| Arsenic contamination of coarse-grained and nanostructured nitinol surfaces induced by chemical treatment in hydrofluoric acid. | |
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MedLine Citation:
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PMID: 22807469 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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XPS measurements of coarse-grained and nanostructured nitinol (Ni(50.2) Ti(49.8) ) before and after chemical treatment in hydrofluoric acid (40% HF, 1 min) are presented. The nanostructured state, providing the excellent mechanical properties of nitinol, is achieved by severe plastic deformation. The near-surface layers of nitinol were studied by XPS depth profiling. According to the obtained results, a chemical treatment in hydrofluoric acid reduces the thickness of the protective TiO(2) oxide layer and induces a nickel release from the nitinol surface and an arsenic contamination, and can therefore not be recommended as conditioning to increase the roughness of NiTi-implants. A detailed evaluation of the resulting toxicological risks is given. © 2012 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2012. |
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Authors:
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D M Korotin; S Bartkowski; E Z Kurmaev; C Borchers; M Müller; M Neumann; D V Gunderov; R Z Valiev; S O Cholakh |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-7-18 |
Journal Detail:
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Title: Journal of biomedical materials research. Part B, Applied biomaterials Volume: - ISSN: 1552-4981 ISO Abbreviation: - Publication Date: 2012 Jul |
Date Detail:
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Created Date: 2012-7-18 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101234238 Medline TA: J Biomed Mater Res B Appl Biomater Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2012 Wiley Periodicals, Inc. |
Affiliation:
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Institute of Metal Physics, Russian Academy of Sciences-Ural Division, 620990 Yekaterinburg, Russia. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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