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- Title
Polydopamine-assisted immobilization of arginine molecules to improve hemocompatibility.
- Authors
Sun, Jiamao; Fu, Tao; Sun, Jianmin; Wu, Feng; Liu, Yun
- Abstract
TiO2 film containing 20 at% Ta (TaTiO2 film) was sol-gel coated on NiTi alloy, and polydopamine film was used to immobilize arginine molecules onto the TaTiO2 film surface to improve hemocompatibility of NiTi alloy. X-ray photoelectron spectroscopy analysis indicated that polydopamine film was formed and then arginine was immobilized onto the surface of TaTiO2-coated sample. Contact angle measurement showed that the polydopamine film and the arginine molecule layer decreased surface energy and interface tension of the TaTiO2-coated NiTi sample. The hemocompatibility tests demonstrated that immobilization of arginine molecules improved anti-thrombogenic activity and anti-aggregating function of the TaTiO2-coated NiTi sample. Copyright © 2016 John Wiley & Sons, Ltd.
- Subjects
DOPAMINE; THERAPEUTIC immobilization; ARGININE; PHOTOELECTRON spectroscopy; SURFACE energy
- Publication
Surface & Interface Analysis: SIA, 2016, Vol 48, Issue 9, p1007
- ISSN
0142-2421
- Publication type
Article
- DOI
10.1002/sia.6012