[25p-E105-1~14] 8.4 Plasma life sciences

△ [25p-E105-9] Development of Selective Plasma-Generated Liquid-Phase Ozone Spraying Device
for Plant Pathogen Control

〇Takafumi Sekine¹, Keisuke Takashima¹, Toshiro Kaneko¹ (1.Grad. Sch. of Eng., Tohoku University)

Keywords:Atmospheric-pressure plasma, Liquid-phase ozone, Pathogen inactivation

The aim of this work is to realize plant disease control via pathogen inactivation by reactive species, generated by atmospheric pressure plasma. A liquid-phase ozone spraying device has been developed, which realizes the gas-phase ozone dissolution followed by isolation of the gas-phase ozone to avoid the gas-phase ozone exposure to plant, which is a cause of plant damages. The pathogen inactivation effect was experimentally achieved by improved liquid phase ozone transport with minimized the gas-phase ozone exposure to target, thus selective liquid-phase ozone transport shows the potential to achieve pathogen inactivation with reduced plant damage caused by gas-phase ozone.