Arsenic contamination of coarse-grained and nanostructured nitinol surfaces induced by chemical treatment in hydrofluoric acid / Korotin D. M.,Bartkowski S.,Kurmaev E. Z.,Borchers C.,Mueller M.,Neumann M.,Gunderov D. V.,Valiev R. Z.,Cholakh S. O. // JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS. - 2012. - V. 100B, l. 7. - P. 1812-1816.

ISSN/EISSN:

1552-4973 / 1552-4981

Type:

Article

Abstract:

XPS measurements of coarse-grained and nanostructured nitinol (Ni50.2Ti49.8) 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. (C) 2012 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2012.

Author keywords:

nitinol; XPS; arsenic contamination; TiO2

DOI:

10.1002/jbm.b.32748

Web of Science ID:

ISI:000308403200011

Соавторы в МНС:

Другие поля

Поле	Значение
Month	OCT
Publisher	WILEY-BLACKWELL
Address	111 RIVER ST, HOBOKEN 07030-5774, NJ USA
Language	English
EISSN	1552-4981
Research-Areas	Engineering; Materials Science
Web-of-Science-Categories	Engineering, Biomedical; Materials Science, Biomaterials
Author-Email	chris@ump.gwdg.de
ResearcherID-Numbers	Gunderov , Dmitry/G-6262-2013 Borchers, Christine/K-4295-2015 Korotin, Danila/J-4263-2013 Kurmaev, Ernst/J-4254-2013 Cholakh, Seif/M-8221-2016
ORCID-Numbers	Gunderov , Dmitry/0000-0001-5925-4513 Borchers, Christine/0000-0002-4805-7597 Korotin, Danila/0000-0002-9800-6552 Kurmaev, Ernst/0000-0003-4625-4930 Cholakh, Seif/0000-0002-9313-6614
Number-of-Cited-References	21
Usage-Count-Since-2013	11
Journal-ISO	J. Biomed. Mater. Res. Part B
Doc-Delivery-Number	000QU