Formation of an anti-bacterial oxide film on Ti-Ta alloy by anodic oxidation

Hao Jan Lin, Shih Fu Ou, Ta Sen Huang, Fang-Yu Fan, Keng-Liang Ou, Li-Hsiang Lin

Research output: Contribution to journalArticle

Abstract

Recently, Ti-Ta alloys have been expected to be as candidates for dental or orthopedic implants because of their low elastic modulus and high corrosion resistance. However, Ti-Ta alloys do not have the properties to protect against bacterial infection. An anti-bacterial coating was fabricated on the Ti-Ta alloy surface by anodic oxidation (AO) and its surface properties were investigated. The anodic oxidized (AOed) film exhibited a roughened surface dotted with micropores. In addition, the AOed surface is more hydrophilic than the Ti-Ta alloy. The results of an anti-bacterial test revealed that the AOed surface possessed excellent antibacterial rate against Staphylococcus aureus (98.5%).

Original languageEnglish
Pages (from-to)1-8
Number of pages8
JournalECS Transactions
Volume58
Issue number38
DOIs
Publication statusPublished - 2013

ASJC Scopus subject areas

  • Engineering(all)

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