Abstract
Plasma sterilization has a potential as an alternative method against conventional sterilization methods because it enables to operate at low temperature and the cost is low. In this study, we developed a small size sterilization device using a contact lens case. The sterilization performance and plasma characteristics were investigated in air and water. Bacteria spores were sterilized in 20 min in air and in 120 min in water. The plasma generated NO_X which is considered as a main factor for the sterilization. The reason why the sterilization time was long is probably caused by that reactive species were transported by mainly diffusion.
