Investigation of antibacterial effect of copper introduced titanium surface by electrochemical treatment against facultative anaerobic bacteria

Masaya Shimabukuro, Yusuke Tsutsumi, Kosuke Nozaki, Peng Chen, Risa Yamada, Maki Ashida, Hisashi Doi, Akiko Nagai, Takao Hanawa

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

This study investigated the efficacy of copper (Cu) as an antibacterial element incorporated on titanium (Ti) surface by electrochemical treatment. Cu was incorporated onto Ti surface by micro-arc oxidation (MAO). A small amount of Cu was incorporated into the oxide layer and was found to be in oxidized states. Cu-incorporated samples exhibited no-harmful effect on the proliferation of osteoblast-like cells. Moreover, the difference in antibacterial property between fresh and incubated samples was evaluated using gram-positive and gram-negative facultative anaerobic bacteria. The specific antibacterial property of Cu incorporated into the Ti surface were confirmed. The antibacterial property prolonged upon immersion in physiological saline for 28 days. In other words, MAO-treated Ti containing Cu in this study is expected to achieve long-term antibacterial property in practical usage.

Original languageEnglish
Pages (from-to)639-647
Number of pages9
Journaldental materials journal
Volume39
Issue number4
DOIs
Publication statusPublished - 2020

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Dentistry(all)

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