Enhancement of antibacterial property of titanium by two-step micro arc oxidation treatment

Masaya Shimabukuro; Harumi Tsutsumi; Yusuke Tsutsumi; Tomoyo Manaka; Peng Chen; Maki Ashida; Kunio Ishikawa; Hideki Katayama; Takao Hanawa

doi:10.4012/dmj.2020-188

Enhancement of antibacterial property of titanium by two-step micro arc oxidation treatment

Masaya Shimabukuro, Harumi Tsutsumi, Yusuke Tsutsumi^*, Tomoyo Manaka, Peng Chen, Maki Ashida, Kunio Ishikawa, Hideki Katayama, Takao Hanawa

^*Corresponding author for this work

Center for Aluminum and advanced Materials Research and International Collaboration, Institute of Light Metals

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

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.

Original language	English
Article number	dmj/2020-188
Pages (from-to)	592-598
Number of pages	7
Journal	Dental Materials Journal
Volume	40
Issue number	3
DOIs	https://doi.org/10.4012/dmj.2020-188
State	Published - 2021

Keywords

Antibacterial property
Escherichia coli
Micro arc oxidation
Silver
Zinc

ASJC Scopus subject areas

Ceramics and Composites
General Dentistry

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10.4012/dmj.2020-188

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title = "Enhancement of antibacterial property of titanium by two-step micro arc oxidation treatment",

abstract = "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.",

keywords = "Antibacterial property, Escherichia coli, Micro arc oxidation, Silver, Zinc",

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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

PY - 2021

Y1 - 2021

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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.

KW - Antibacterial property

KW - Escherichia coli

KW - Micro arc oxidation

KW - Silver

KW - Zinc

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Enhancement of antibacterial property of titanium by two-step micro arc oxidation treatment

Abstract

Keywords

ASJC Scopus subject areas

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