In vitro corrosion inhibition on biomedical shape memory alloy by plasma-polymerized allylamine film

Penghui Li; Guosong Wu; Ruizhen Xu; Wenhao Wang; Shuilin Wu; Kelvin W.K. Yeung; Paul K. Chu

doi:10.1016/j.matlet.2012.08.054

Author(s)

Penghui Li
Guosong Wu
Ruizhen Xu
Wenhao Wang
Shuilin Wu
Kelvin W.K. Yeung

Detail(s)

Original language	English
Pages (from-to)	51-54
Journal / Publication	Materials Letters
Volume	89
Publication status	Published - 15 Dec 2012

Link(s)

DOI	DOI https://doi.org/10.1016/j.matlet.2012.08.054 Final Published version
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Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84867533309&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(65b7ff44-00e5-4f4d-9c1f-660b825bf810).html

Abstract

To improve the corrosion resistance of biomedical nickel titanium (NiTi) alloy, a polymeric allylamine film is deposited by plasma polymerization. The chemical composition, surface morphology, and thickness of the polymer film are investigated with X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), and scanning electron microscopy (SEM). The corrosion behavior of the coated NiTi and bare NiTi samples is compared by polarization test and electrochemical impedance spectroscopy (EIS) in simulated body fluid. The results show that the polymeric film lowers the corrosion current density and increases the polarization resistance, indicating improved corrosion resistance. The plasma polymerized coating is expected to reduce corrosion risks of biomedical NiTi alloy in clinical use. © 2012 Elsevier B.V.

Research Area(s)

Corrosion, NiTi, Plasma polymerization, Polymer film

Citation Format(s)

[ RIS ] [ BibTeX ]

In vitro corrosion inhibition on biomedical shape memory alloy by plasma-polymerized allylamine film. / Li, Penghui; Wu, Guosong; Xu, Ruizhen et al.
In: Materials Letters, Vol. 89, 15.12.2012, p. 51-54.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

Li, P, Wu, G, Xu, R, Wang, W, Wu, S, Yeung, KWK & Chu, PK 2012, 'In vitro corrosion inhibition on biomedical shape memory alloy by plasma-polymerized allylamine film', Materials Letters, vol. 89, pp. 51-54. https://doi.org/10.1016/j.matlet.2012.08.054

Li, P., Wu, G., Xu, R., Wang, W., Wu, S., Yeung, K. W. K., & Chu, P. K. (2012). In vitro corrosion inhibition on biomedical shape memory alloy by plasma-polymerized allylamine film. Materials Letters, 89, 51-54. https://doi.org/10.1016/j.matlet.2012.08.054

Li P, Wu G, Xu R, Wang W, Wu S, Yeung KWK et al. In vitro corrosion inhibition on biomedical shape memory alloy by plasma-polymerized allylamine film. Materials Letters. 2012 Dec 15;89:51-54. doi: 10.1016/j.matlet.2012.08.054

Li, Penghui ; Wu, Guosong ; Xu, Ruizhen et al. / In vitro corrosion inhibition on biomedical shape memory alloy by plasma-polymerized allylamine film. In: Materials Letters. 2012 ; Vol. 89. pp. 51-54.