TITLE

Atmospheric pressure air-plasma jet evolved from microdischarges: Eradication of E. coli with the jet

AUTHOR(S)
Yong Cheol Hong; Won Seok Kang; Yoo Beom Hong; Won Ju Yi; Han Sup Uhm
PUB. DATE
December 2009
SOURCE
Physics of Plasmas;Dec2009, Vol. 16 Issue 12, p123502
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
An atmospheric-pressure air-plasma jet operating at 60 Hz ac is presented. A plasma jet with a length of 23 mm was produced by feeding air through a porous alumina dielectric installed between an outer electrode and a hollow inner electrode. Microdischarges in the porous alumina are ejected as a plasma jet from the outer electrode through a 1 mm hole, showing that the temperature of the jet decreases to a value close to the room temperature. The jet disinfects E. coli cells very effectively, eradicating them with an exposure of a few seconds to the jet flame.
ACCESSION #
47244167

 

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