Sterilization mechanism for Escherichia coli by plasma flow at atmospheric pressure

Takehiko Sato, Takashi Miyahara, Akiko Doi, Shiroh Ochiai, Takuya Urayama, Tatsuyuki Nakatani

Research output: Contribution to journalArticlepeer-review

78 Citations (Scopus)


A mechanism for sterilizing Escherichia coli by a flowing postdischarge and UV radiation of argon plasma at atmospheric pressure was investigated by analyzing the surviving cells and the potassium leakage of cytoplasmic material and by morphological observation. Inactivation of E. coli results from the destruction of the cytoplasmic membrane and the outer membrane under plasma exposure and the destruction of nucleic acids by exposure to ultraviolet radiation from the plasma source.

Original languageEnglish
Article number073902
JournalApplied Physics Letters
Issue number7
Publication statusPublished - 2006

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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