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http://dx.doi.org/10.14478/ace.2011.22.3.261

Treatment of Ar/O2 Atmospheric Pressure Plasma for Sterilization  

Son, Hyang Ho (Department of Chemical Engineering, Kangwon National University)
Lee, Won Gyu (Department of Chemical Engineering, Kangwon National University)
Publication Information
Applied Chemistry for Engineering / v.22, no.3, 2011 , pp. 261-265 More about this Journal
Abstract
The sterilization effects of atmospheric pressure plasma with the mixture of argon and oxygen were analyzed. The plasma reactor with the shape of dielectric barrier discharge produced the uniform distribution of glow discharge and generated ozone gas effectively according to the various process parameters. The sterilization for E. coli was affected by power, oxygen ratio in the mixture gas, treatment time and distance between reactor and sample. The concentration of ozone was a major source for the sterilization of E. coli, which was enhanced by the increase of power and oxygen ratio. In this study, the effect of atmospheric pressure plasma treatment for the sterilization was confirmed and its result can deliver the atmospheric pressure plasma treatment as the novel sterilization method instead of conventional methods.
Keywords
atmospheric pressure plasma; sterilization; dielectric barrier discharge; E. coli;
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