Effects of H2O2 pretreatment on surface characteristics and bioactivity of NaOH-treated NiTi shape memory alloy

Cheng-Lin Chu; Tao Hu; Jun Zhou; Yue-Pu Pu; Li-Hong Yin; Yin-Sheng Dong; Ping-Hua Lin; Jonathan-Cy Chung; Paul-K Chu

doi:10.1016/S1003-6326(07)60009-0

Author(s)

Cheng-Lin Chu
Tao Hu
Jun Zhou
Yue-Pu Pu
Li-Hong Yin
Yin-Sheng Dong
Ping-Hua Lin

Detail(s)

Original language	English
Pages (from-to)	1295-1300
Journal / Publication	Transactions of Nonferrous Metals Society of China (English Edition)
Volume	16
Issue number	6
Publication status	Published - Dec 2006

Link(s)

DOI	DOI https://doi.org/10.1016/S1003-6326(07)60009-0 Final Published version
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Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-33847268601&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(d5bb2338-4155-4157-aa56-3e10a55f30ad).html

Abstract

The effects of H₂O₂ pretreatment on the surface characteristics and bioactivity of NaOH-treated NiTi shape memory alloy (SMA) were investigated by scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, Raman spectra, Fourier transform infrared spectroscopy as well as a simulated body fluid (SBF) soaking test. It is found that the H₂O₂ pretreatment can lead to the direct creation of more Ti-OH groups and the decrease in the amount of Ni₂O₃, Na₂TiO₃ and remnant NiTi phases on the surfaces of bioactive NiTi SMA prepared by NaOH treatment. As a result, the induction period of apatite formation is shortened by dispensing with the slow kinetic formation process of Ti-OH groups via an exchange of Na⁺ ions from Na₂TiO₃ phase with H₃O⁺ ions in SBF, which indicates that the bioactivity of NaOH-treated NiTi SMA can be further improved by the H₂O₂ pretreatment.

Research Area(s)

Bioactivity, H2O2 pretreatment, NaOH treatment, NiTi, Shape memory alloy (SMA), Surface structure

Citation Format(s)

[ RIS ] [ BibTeX ]

Effects of H₂O₂ pretreatment on surface characteristics and bioactivity of NaOH-treated NiTi shape memory alloy. / Chu, Cheng-Lin; Hu, Tao; Zhou, Jun; Pu, Yue-Pu; Yin, Li-Hong; Dong, Yin-Sheng; Lin, Ping-Hua; Chung, Jonathan-Cy ; Chu, Paul-K.

In: Transactions of Nonferrous Metals Society of China (English Edition), Vol. 16, No. 6, 12.2006, p. 1295-1300.

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

Chu, C-L, Hu, T, Zhou, J, Pu, Y-P, Yin, L-H, Dong, Y-S, Lin, P-H, Chung, J-C & Chu, P-K 2006, 'Effects of H₂O₂ pretreatment on surface characteristics and bioactivity of NaOH-treated NiTi shape memory alloy', Transactions of Nonferrous Metals Society of China (English Edition), vol. 16, no. 6, pp. 1295-1300. https://doi.org/10.1016/S1003-6326(07)60009-0

Chu, C-L., Hu, T., Zhou, J., Pu, Y-P., Yin, L-H., Dong, Y-S., Lin, P-H., Chung, J-C., & Chu, P-K. (2006). Effects of H₂O₂ pretreatment on surface characteristics and bioactivity of NaOH-treated NiTi shape memory alloy. Transactions of Nonferrous Metals Society of China (English Edition), 16(6), 1295-1300. https://doi.org/10.1016/S1003-6326(07)60009-0

Chu C-L, Hu T, Zhou J, Pu Y-P, Yin L-H, Dong Y-S et al. Effects of H₂O₂ pretreatment on surface characteristics and bioactivity of NaOH-treated NiTi shape memory alloy. Transactions of Nonferrous Metals Society of China (English Edition). 2006 Dec;16(6):1295-1300. https://doi.org/10.1016/S1003-6326(07)60009-0

Chu, Cheng-Lin ; Hu, Tao ; Zhou, Jun ; Pu, Yue-Pu ; Yin, Li-Hong ; Dong, Yin-Sheng ; Lin, Ping-Hua ; Chung, Jonathan-Cy ; Chu, Paul-K. / Effects of H₂O₂ pretreatment on surface characteristics and bioactivity of NaOH-treated NiTi shape memory alloy. In: Transactions of Nonferrous Metals Society of China (English Edition). 2006 ; Vol. 16, No. 6. pp. 1295-1300.