Document Detail

Arsenic contamination of coarse-grained and nanostructured nitinol surfaces induced by chemical treatment in hydrofluoric acid.
MedLine Citation:
PMID:  22807469     Owner:  NLM     Status:  MEDLINE    
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.
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:
Type:  Journal Article     Date:  2012-07-18
Journal Detail:
Title:  Journal of biomedical materials research. Part B, Applied biomaterials     Volume:  100     ISSN:  1552-4981     ISO Abbreviation:  J. Biomed. Mater. Res. Part B Appl. Biomater.     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-09-05     Completed Date:  2013-01-15     Revised Date:  2013-06-10    
Medline Journal Info:
Nlm Unique ID:  101234238     Medline TA:  J Biomed Mater Res B Appl Biomater     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1812-6     Citation Subset:  IM    
Copyright Information:
Copyright © 2012 Wiley Periodicals, Inc.
Institute of Metal Physics, Russian Academy of Sciences-Ural Division, 620990 Yekaterinburg, Russia.
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MeSH Terms
Alloys / chemistry*
Arsenic / analysis*,  chemistry
Hydrofluoric Acid / chemistry*
Nanostructures / chemistry*
Titanium / chemistry*
Reg. No./Substance:
0/Alloys; 15FIX9V2JP/titanium dioxide; 52013-44-2/nitinol; 7440-32-6/Titanium; 7440-38-2/Arsenic; 7664-39-3/Hydrofluoric Acid

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