The effects of peptidoglycan on the photocatalytic bactericidal activity of titanium dioxide

被引：0
|
作者：
Takao A. [1 ,2 ]
Suzuki T. [1 ,2 ]
机构：
[1] Department of Applied Biological Science, Tokyo University of Science, 2641, Yamazaki, Noda, Chiba
[2] Photocatalysis International Research Center, Tokyo University of Science, 2641, Yamazaki, Noda, Chiba
来源：
Suzuki, Tomonori (chijun@rs.noda.tus.ac.jp) | 1600年 / Society for Antibacterial and Antifungal Agents Japan卷 / 25期
关键词：
Bactericidal effect; Peptidoglycan; Photocatalysis; Protoplast; TiO[!sub]2[!/sub;
D O I：
10.4265/BIO.25.167
中图分类号：
学科分类号：
摘要：
For the elucidation of the mechanism underlying the photocatalytic bactericidal activity of titanium dioxide (TiO2), we focused on the peptidoglycan layer, a component of the bacterial cell wall. The effect of this layer on the photocatalytic bactericidal activity of TiO2was evaluated by determining the survival rates of Lactobacillus plantarum(intact cells) and its protoplast cells. Mesoplasma florum, which does not originally possess the peptidoglycan layer, was also used. Our results revealed that the survival rates of the intact cells were lower than those of the protoplast cells. In addition, there was no significance between the survival rates of M. florum cells and the protoplast cells of L. plantarum. It was suggested that the presence of the peptidoglycan layer increases the bactericidal effect by the photocatalysis. © 2020 Society for Antibacterial and Antifungal Agents Japan. All rights reserved.
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页码：167 / 171
页数：4
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