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

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

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

18 Citations (Scopus)

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.

Original language	English
Pages (from-to)	51-54
Journal	Materials Letters
Volume	89
DOIs	https://doi.org/10.1016/j.matlet.2012.08.054
Publication status	Published - 15 Dec 2012

Research Keywords

Corrosion
NiTi
Plasma polymerization
Polymer film

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10.1016/j.matlet.2012.08.054

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title = "In vitro corrosion inhibition on biomedical shape memory alloy by plasma-polymerized allylamine film",

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. {\textcopyright} 2012 Elsevier B.V.",

keywords = "Corrosion, NiTi, Plasma polymerization, Polymer film",

author = "Penghui Li and Guosong Wu and Ruizhen Xu and Wenhao Wang and Shuilin Wu and Yeung, \{Kelvin W.K.\} and Chu, \{Paul K.\}",

year = "2012",

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doi = "10.1016/j.matlet.2012.08.054",

language = "English",

volume = "89",

pages = "51--54",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - In vitro corrosion inhibition on biomedical shape memory alloy by plasma-polymerized allylamine film

AU - Li, Penghui

AU - Wu, Guosong

AU - Xu, Ruizhen

AU - Wang, Wenhao

AU - Wu, Shuilin

AU - Yeung, Kelvin W.K.

AU - Chu, Paul K.

PY - 2012/12/15

Y1 - 2012/12/15

N2 - 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.

AB - 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.

KW - Corrosion

KW - NiTi

KW - Plasma polymerization

KW - Polymer film

UR - https://www.scopus.com/pages/publications/84867533309

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84867533309&origin=recordpage

U2 - 10.1016/j.matlet.2012.08.054

DO - 10.1016/j.matlet.2012.08.054

M3 - RGC 21 - Publication in refereed journal

SN - 0167-577X

VL - 89

SP - 51

EP - 54

JO - Materials Letters

JF - Materials Letters

ER -

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

Abstract

Research Keywords

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