Rapid sterilization of Escherichia coli by solution plasma process

Nina Andreeva, Takahiro Ishizaki, Pavel Baroch, Nagahiro Saito

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Solution plasma (SP), which is a discharge in the liquid phase, has the potential for rapid sterilization of water without chemical agents. The discharge showed a strong sterilization performance against Escherichia coli bacteria. The decimal value (D value) of the reduction time for E. coli by this system with an electrode distance of 1.0mm was estimated to be approximately 1.0 min. Our discharge system in the liquid phase caused no physical damage to the E. coli and only a small increase in the temperature of the aqueous solution. The UV light generated by the discharge was an important factor in the sterilization of E. coli.

Original languageEnglish
Article number126201
JournalJapanese Journal of Applied Physics
Issue number12
Publication statusPublished - 2012 Dec

ASJC Scopus subject areas

  • General Engineering
  • General Physics and Astronomy


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