Enhancement of biocompatibility on bioactive Ti-Nb-based alloy by high-density plasma modification

En Yu Wu, Keng Liang Ou, Yung Ning Pan

研究成果: 雜誌貢獻文章

2 引文 斯高帕斯(Scopus)

摘要

The formations and characteristics of oxides on the surfaces of the plasma-treated Ti-Nb-Hf alloys were investigated by employing X-ray photoelectron spectroscopy, X-ray powder diffractometer and scanning electron microscopy. Further, the non-treated and plasma-treated specimens were incubated in phosphate-buffered saline (PBS) containing albumin to evaluate their biocompatibility. The results indicate that through 02-plasma treatment, the thickness of the oxide layer increases, and the surface roughness improves, exhibiting little protuberances and numerous micropores and cavities on the treated surface. The compositions of the oxide layers in the specimen without O2-plasma treatment consist of TiO, Ti2O3 and TiO2, and the oxides transform to mainly TiO2 as the specimen is treated with O2-plasma. In addition, the formation of nitrides by allylamine plasma treatment can provide amino-group linkings for the attachment of albumin. Plasma oxidation and polymerization are believed to improve biocompatibility and therefore promote osseointegration.

原文英語
頁(從 - 到)3164-3169
頁數6
期刊Materials Transactions
48
發行號12
DOIs
出版狀態已發佈 - 十二月 2007

ASJC Scopus subject areas

  • Materials Science(all)
  • Metals and Alloys

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