Destruction of Bacillus subtilis cells using an atmospheric-pressure capillary plasma electrode discharge

N. S. Panikov, S. Paduraru, R. Crowe, P. J. Ricatto, C. Christodoulatos, K. Becker

Research output: Contribution to journalArticle

Abstract

We report the results of experiments aimed at the investigation of the destruction of spore-forming bacteria, which are believed to be among the most resistant micro-organisms, using a novel atmospheric-pressure capillary plasma electrode discharge plasma. Various well-characterized cultures of Bacillus subtilis were prepared, subjected to atmospheric-pressure plasma jets emanating from a plasma-shower reactor operated either in He or in air (N2/O2 mixture) at various power levels and exposure times, and analyzed after plasma treatment. Reductions in colony-forming units ranged from 104 (He plasma) to 108 (air plasma) for plasma exposure times of less than 10 min.

Original languageEnglish (US)
Pages (from-to)1424-1428
Number of pages5
JournalIEEE Transactions on Plasma Science
Volume30
Issue number4 I
DOIs
StatePublished - Aug 2002

Keywords

  • Atmospheric-pressure plasmas
  • Decontamination
  • Plasma physics

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

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