TY - JOUR
T1 - Enhancement of antibacterial property of titanium by two-step micro arc oxidation treatment
AU - Shimabukuro, Masaya
AU - Tsutsumi, Harumi
AU - Tsutsumi, Yusuke
AU - Manaka, Tomoyo
AU - Chen, Peng
AU - Ashida, Maki
AU - Ishikawa, Kunio
AU - Katayama, Hideki
AU - Hanawa, Takao
N1 - Funding Information:
This work was supported by a Grant-in-Aid for JSPS Research Fellow JP201940065. Part of this study was supported by the Research Center for Biomedical Engineering.
Publisher Copyright:
© 2021, Japanese Society for Dental Materials and Devices. All rights reserved.
PY - 2021
Y1 - 2021
N2 - A customized micro arc oxidation (MAO) treatment technique was developed to obtain desirable antibacterial properties on titanium surfaces. The two-step MAO treatment was applied to fabricate a specimen containing both Ag and Zn in its surface oxide layer. Surface analyses and metal-ion release tests were performed to evaluate the presence of Ag and Zn and the ion release behavior for simulating practical usage, respectively. Additionally, the antibacterial properties of the specimens were also evaluated using gram-negative facultative anaerobic bacteria. The MAO-treated specimens containing both Ag and Zn showed excellent antibacterial properties against Escherichia coli, and the properties were sustained even after 28 days of immersion in physiological saline to simulate the living environment.
AB - A customized micro arc oxidation (MAO) treatment technique was developed to obtain desirable antibacterial properties on titanium surfaces. The two-step MAO treatment was applied to fabricate a specimen containing both Ag and Zn in its surface oxide layer. Surface analyses and metal-ion release tests were performed to evaluate the presence of Ag and Zn and the ion release behavior for simulating practical usage, respectively. Additionally, the antibacterial properties of the specimens were also evaluated using gram-negative facultative anaerobic bacteria. The MAO-treated specimens containing both Ag and Zn showed excellent antibacterial properties against Escherichia coli, and the properties were sustained even after 28 days of immersion in physiological saline to simulate the living environment.
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U2 - 10.4012/dmj.2020-188
DO - 10.4012/dmj.2020-188
M3 - Article
C2 - 33361664
AN - SCOPUS:85107319055
SN - 0287-4547
VL - 40
SP - 592
EP - 598
JO - dental materials journal
JF - dental materials journal
IS - 3
M1 - dmj/2020-188
ER -