Light irradiation is a factor in the bactericidal activity of silver-loaded zeolite |
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| Authors: | Inoue Yoshihiro Kogure Makoto Matsumoto Ken-ichiro Hamashima Hajime Tsukada Masamichi Endo Kazutoyo Tanaka Tatsuo |
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| Affiliation: | Department of Microbiology, Showa Pharmaceutical University, Machida, Tokyo, Japan. inoue@ac.shoyaku.ac.jp |
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| Abstract: | Silver loaded zeolite (Ag-Z) was previously found to have effective bactericidal activity against Escherichia coli. To understand the mechanisms of bactericidal activity of Ag-Z, role of light irradiation was focused and investigated in this study. In this study, we focused on light irradiation. Antibacterial assay and spectroscopic study revealed that light irradiation enabled Ag-Z to reduce dioxygen to form a reactive oxygen species, which led to bactericidal activity. These results indicate that the onset of bactericidal activity can be controlled by light irradiation. |
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