Title: Plasma Sterilization of Geobacillus Stearothermophilus by O :N RF Inductively Coupled Plasma
Authors: KYLIAN OndrejSASAKI TAKAOROSSI FRANCOIS
Citation: EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS vol. 34 no. 2 p. 139-142
Publisher: E D P SCIENCES
Publication Year: 2006
JRC N°: JRC33585
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC33585
Type: Articles in Journals
Abstract: The aim of this work is to identify the main process responsible for sterilization of Geobacillus Stearothermophilus spores in O2:N2 RF inductively coupled plasma. In order to meet this objective the sterilization efficiencies of discharges in mixtures differing in the initial O2/N2 ratios are compared with plasma properties and with scanning electron microscopy images of treated spores. According to the obtained results it can be concluded that under our experimental conditions the time needed to reach complete sterilization is more related to O atom density than UV radiation intensity, i.e. complete sterilization is not related only to DNA damage as in UV sterilization but more likely to the etching of the spore.
JRC Institute:Institute for Health and Consumer Protection

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