Characteristics of surface sterilization using electron cyclotron resonance plasma
Abstract
<jats:title>Abstract</jats:title> <jats:p>The characteristics of surface sterilization using electron cyclotron resonance (ECR) plasma were investigated. High-energy electrons and oxygen radicals were observed in the ECR zone using electric probe and optical emission spectroscopic methods. A biological indicator (BI), <jats:italic>Geobacillus stearothermophilus</jats:italic>, containing 1 × 10<jats:sup>6</jats:sup> spores was sterilized in 120 s by exposure to oxygen discharges while maintaining a temperature of approximately 55 °C at the BI installation position. Oxygen radicals and high-energy electrons were found to be the sterilizing species in the ECR region. It was demonstrated that the ECR plasma could be produced in narrow tubes with an inner diameter of 5 mm. Moreover, sterilization tests confirmed that the spores present inside the narrow tube were successfully inactivated by ECR plasma irradiation.</jats:p>
Journal
-
- Japanese Journal of Applied Physics
-
Japanese Journal of Applied Physics 55 (7S2), 07LG08-, 2016-06-27
IOP Publishing
- Tweet
Details 詳細情報について
-
- CRID
- 1360284924867387648
-
- NII Article ID
- 210000146892
-
- ISSN
- 13474065
- 00214922
-
- Data Source
-
- Crossref
- CiNii Articles
- KAKEN