Photoelectrochemical sterilization of microbial cells by semiconductor powders

Tadashi Matsunaga; Ryozo Tomoda; Toshiaki Nakajima; Hitoshi Wake

Photoelectrochemical sterilization of microbial cells by semiconductor powders

Tadashi Matsunaga^*, Ryozo Tomoda, Toshiaki Nakajima, Hitoshi Wake

^*この研究の対応する著者

研究成果: Article › 査読

1299 被引用数 (Scopus)

抄録

We report the novel concept of photochemical sterilization. Microbial cells were killed photoelectrochemically with semiconductor powder (platinum-loaded titanium oxide, TiO₂/Pt). Coenzyme A, (CoA) in the whole cells was photo-electrochemically oxidized and, as a result, the respiration of cells was inhibited. Inhibition of respiratory activity caused death of the cells. Lactobacillus acidophilus, Saccharomyces cerevisiae and Escherichia coli (10³ cells/ml respectively) were completely sterilized when they were incubated with TiO₂/Pt particles under metal halide lamp irradiation for 60-120 min.

本文言語	English
ページ（範囲）	211-214
ページ数	4
ジャーナル	FEMS Microbiology Letters
巻	29
号	1-2
出版ステータス	Published - 1985
外部発表	はい

ASJC Scopus subject areas

微生物学
医学（全般）
分子生物学
遺伝学

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引用スタイル

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title = "Photoelectrochemical sterilization of microbial cells by semiconductor powders",

abstract = "We report the novel concept of photochemical sterilization. Microbial cells were killed photoelectrochemically with semiconductor powder (platinum-loaded titanium oxide, TiO2/Pt). Coenzyme A, (CoA) in the whole cells was photo-electrochemically oxidized and, as a result, the respiration of cells was inhibited. Inhibition of respiratory activity caused death of the cells. Lactobacillus acidophilus, Saccharomyces cerevisiae and Escherichia coli (103 cells/ml respectively) were completely sterilized when they were incubated with TiO2/Pt particles under metal halide lamp irradiation for 60-120 min.",

keywords = "coenzyme A, Saccharomyces cerevisiae, semiconductor, Sterilization",

author = "Tadashi Matsunaga and Ryozo Tomoda and Toshiaki Nakajima and Hitoshi Wake",

year = "1985",

language = "English",

volume = "29",

pages = "211--214",

journal = "FEMS Microbiology Letters",

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T1 - Photoelectrochemical sterilization of microbial cells by semiconductor powders

AU - Matsunaga, Tadashi

AU - Tomoda, Ryozo

AU - Nakajima, Toshiaki

AU - Wake, Hitoshi

PY - 1985

Y1 - 1985

N2 - We report the novel concept of photochemical sterilization. Microbial cells were killed photoelectrochemically with semiconductor powder (platinum-loaded titanium oxide, TiO2/Pt). Coenzyme A, (CoA) in the whole cells was photo-electrochemically oxidized and, as a result, the respiration of cells was inhibited. Inhibition of respiratory activity caused death of the cells. Lactobacillus acidophilus, Saccharomyces cerevisiae and Escherichia coli (103 cells/ml respectively) were completely sterilized when they were incubated with TiO2/Pt particles under metal halide lamp irradiation for 60-120 min.

AB - We report the novel concept of photochemical sterilization. Microbial cells were killed photoelectrochemically with semiconductor powder (platinum-loaded titanium oxide, TiO2/Pt). Coenzyme A, (CoA) in the whole cells was photo-electrochemically oxidized and, as a result, the respiration of cells was inhibited. Inhibition of respiratory activity caused death of the cells. Lactobacillus acidophilus, Saccharomyces cerevisiae and Escherichia coli (103 cells/ml respectively) were completely sterilized when they were incubated with TiO2/Pt particles under metal halide lamp irradiation for 60-120 min.

KW - coenzyme A

KW - Saccharomyces cerevisiae

KW - semiconductor

KW - Sterilization

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M3 - Article

AN - SCOPUS:0022380522

SN - 0378-1097

VL - 29

SP - 211

EP - 214

JO - FEMS Microbiology Letters

JF - FEMS Microbiology Letters

IS - 1-2

ER -

Photoelectrochemical sterilization of microbial cells by semiconductor powders

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