Comparison of Direct and Indirect Effects of Non-Thermal Atmospheric-Pressure Plasma on Bacteria (original) (raw)

Effectiveness of non-thermal atmospheric pressure Floating Electrode Dielectric Barrier Discharge plasma in interaction with living organisms is investigated. Two regimes are analyzed: where this plasma comes in direct contact with the organism and where this plasma in separated for the treatment target by a grounded mesh. Direct plasma contact is found to be more efficient at sterilization and the mechanism is hypothesized to be due to charged species delivered by plasma to the surface of the organism.