Bactericidal characteristics and material conformity of atmospheric-pressure glow discharge

摘要

We studied the inactivation of microorganisms using glow discharge plasma in a mixture gas of helium and oxygen at normal atmospheric pressure. Combinations of parameters such as frequency and discharge gap are varied among a variety of solutions. We demonstrate inactivation using active species generated in the discharge space. Process compatibility was checked on the package of biological indicators, and dental impression molds in complex shapes were made of the hydrophilic polymer used in dental surgery.