Surface treatments of titanium anodized in phosphoric acid solution and in vitro cell responses

Zhao Xiang Chen, Wen Xue Wang, Yoshihiro Takao, Terutake Matsubara, Li Mei Ren

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

TiO2 layer was fabricated on commercially pure titanium using an anodic spark oxidation technique with 1M phosphoric acid solution. Subsequent heat or wfater treatment was performed to improve the biocompatibility of oxide layers. Surface characteristics of oxide layers before and after subsequent treatments and their influence on the cell response were investigated. It was found that the oxide layer without subsequent treatments exhibited a porous surface structure with few nanometer features. Thin film X-ray diffraction analysis and electron probe microanalysis indicated that the oxide layer consisted of amorphous or poorly crystallized oxides with the incorporation of phosphorus. After heat treatment (500 °C, 3 h), the crystallinity degree of oxide layer increased, but only slight change in the surface morphology was observed. In contrast, water treatment (80 °C, 48 h) not only can significantly transform the amorphous oxides into crystalline anatase, but also result in a nanostructured surface. In vitro biocompatibility study of oxide layers demonstrated better cell response to water treated oxide layer than untreated one.

Original languageEnglish
Pages (from-to)306-313
Number of pages8
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume57
Issue number5
DOIs
Publication statusPublished - May 1 2010

Fingerprint

Phosphoric acid
Titanium
Oxides
Surface treatment
Biocompatibility
phosphoric acid
Electron probe microanalysis
Electric sparks
Water treatment
Surface structure
Titanium dioxide
Phosphorus
X ray diffraction analysis
Surface morphology
Heat treatment
Crystalline materials
Thin films
Oxidation
Water

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Surface treatments of titanium anodized in phosphoric acid solution and in vitro cell responses. / Chen, Zhao Xiang; Wang, Wen Xue; Takao, Yoshihiro; Matsubara, Terutake; Ren, Li Mei.

In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, Vol. 57, No. 5, 01.05.2010, p. 306-313.

Research output: Contribution to journalArticle

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