Author
Şimşek, Görkem Muttalip, Barthes, J., Muller, C., McGuinness, G. B., Vrana, N. E., Yapıcı, Güney Güven
Publication Date
2021-05
Publication Place
-
Springer
Subject
Shape memory alloys, NiTi, Coating, Hydrogel, Biocompatibility, Corrosion
Type
Periodical
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
0947-8396
Record ID
6fe1eff7-9540-4bb9-9e94-64cb80d36b81
Library Location
Mechanical Engineering
Date
2021-05
Notes
TÜBİTAK ; European Union’s Horizon Europe
Sample Text
Nickel-titanium shape memory alloys have attracted notable interest for biomedical applications due to their unique properties. However, there are still some concerns on the potential release of nickel ions causing adverse reactions in-vivo at high concentrations. In this work, samples were coated with a polyvinyl alcohol/gelatin hydrogel. Coating stability, corrosion resistance and biocompatibility were investigated. Coated samples exhibited similar shape memory response to that of the uncoated substrates in wire form. Additionally, the hydrogel coating led to a decrease in the surface temperature and significantly improved the corrosion resistance of the shape memory substrate. The presence of the hydrogel layer does not affect the biocompatibility of the alloy while providing a semi-degradable, hydrophilic surface that forms a cushion at the tissue-implant interfaces.
DOI
10.1007/s00339-021-04542-5
Cilt
127
