Study of low temperature inactivation of spores using microwave excited air plasma

• Autorzy: Nagatsu M. , Singh M. K. , Zhao Y. , Fujioka Y. , Ogino A.
• Konferencja: 8th International Conference on Global Research and Education – Inter-Academia 2009
• Języki publikacji: EN

Abstrakty

EN

In the present study, we investigated the inactivation characteristics and contribution of different inactivating factors generated in a low temperature and low pressure nitrogen, oxygen and air-simulated plasma for the inactivation of Geobacillus stearothermophilus spores. We used three optical filters i.e. thin quartz (lambda>180 nm), lithium fluorine (LiF, lambda>120 nm) and Pyrex glass (lambda>300 nm) plates to identify the most efficient wavelength range. The effect of optical radiations alone was studied through placing a small isolated and evacuated chamber with spore sample inside the plasma chamber.

Słowa kluczowe

EN

plasma sterilization; low temperature plasma; microwave plasma; air plasma; VUV; radicals

• Wydawca: Łukasiewicz Industrial Research Institute for Automation and Measurements PIAP
• Czasopismo: Journal of Automation Mobile Robotics and Intelligent Systems
• Rocznik: 2009
• Tom: Vol. 3, No. 4
• Strony: 108--111
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Nagatsu M.

autor

Singh M. K.

autor

Zhao Y.

autor

Fujioka Y.

autor

Ogino A.

• Graduate School of Science and Technology, Shizuoka University, Hamamatsu, 432-8561, Japan,

Bibliografia

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• [8] Philip N., Saoudi B., Crevier M.-Ch., Moisan M., Barbeau J., Pelletier J., “The respective roles of UV photons and oxygen atoms in plasma sterilization at reduced gas pressure: the case of N -O mixtures”, IEEE Trans., vol. 30, 2002 pp. 1429-1436.
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