Photoelectrochemical sterilization of microbial cells by semiconductor powders
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The concept of photochemical sterilization was introduced in this article, where microorganisms were killed photoelectrochemically with semiconductor powder (platinum-loaded titanium oxide, TiO2/Pt).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.read more
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References
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Electrochemical Photolysis of Water at a Semiconductor Electrode
Akira Fujishima,Kenichi Honda +1 more
TL;DR: Water photolysis is investigated by exploiting the fact that water is transparent to visible light and cannot be decomposed directly, but only by radiation with wavelengths shorter than 190 nm.
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Photolysis of water and photoreduction of nitrogen on titanium dioxide
G. N. Schrauzer,T. D. Guth +1 more
TL;DR: The photolysis of chemisorbed water on incompletely outgassed TiO/sub 2/ powder yields H 2 and O 2 in the molar ratio of 2 : 1 if conducted under argon in the presence of molecular nitrogen as mentioned in this paper.
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Heterogeneous photocatalytic oxidation of cyanide and sulfite in aqueous solutions at semiconductor powders
Steven N. Frank,Allen J. Bard +1 more
TL;DR: In this paper, it was shown that there are at least two kinds of metal-C0 bonds involved which undoubtedly have different bond energies and that their approximate ratio is 5/1, the type of site greatest in quantity being that which bonds most strongly with CO.
Journal ArticleDOI
Coenzyme A function in and acetyl transfer by the phosphotransacetylase system.
TL;DR: Attempts to identify this “activator” function of microbial extracts led to the proposition that the phosphate exchange and arsenolysis system may be responsible for the acetyl transfer from acetyl phosphate.
Journal ArticleDOI
Detection of microbial cells by cyclic voltammetry.
Tadashi Matsunaga,Yoichi Namba +1 more