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|Title:||Arsenic contamination of coarse-grained and nanostructured nitinol surfaces induced by chemical treatment in hydrofluoric acid|
|Authors:||Korotin, D. M.|
Kurmaev, E. Z.
Gunderov, D. V.
Valiev, R. Z.
Cholakh, S. O.
|Citation:||Arsenic contamination of coarse-grained and nanostructured nitinol surfaces induced by chemical treatment in hydrofluoric acid / D. M. Korotin, S. Bartkowski, E. Z. Kurmaev, C. Borchers, M. Müller, M. Neumann, D. V. Gunderov, R. Z. Valiev, S. O. Cholakh // Journal of Biomedical Materials Research - Part B Applied Biomaterials. — 2012. — Vol. 100 B. — № 7. — P. 1812-1816.|
|Abstract:||XPS measurements of coarse-grained and nanostructured nitinol (Ni 50.2Ti49.8) 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 TiO2 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. Copyright © 2012 Wiley Periodicals, Inc.|
|Appears in Collections:||Научные публикации, проиндексированные в SCOPUS и WoS CC|
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