[11p-Z05-1~15] 8.5 Plasma phenomena, emerging area of plasmas and their new applications

△ [11p-Z05-10] Surface-localized Liquid-phase OH Radical Revealed High-speed Liquid Flow Passing through Atmospheric-pressure Plasma

〇Kazuki Takeda¹, Shota Sasaki¹, Ryosuke Honda¹, Keisuke Takashima¹, Toshiro Kaneko¹ (1.Grad. Sch. of Eng., Tohoku Univ)

Keywords:Atmospheric-pressure Plasma, Plasma-liquid interface, OH Radical

Plasma in contact with liquids is often applied in life sciences. The short-lived reactive species generated in the liquid are important factors for living tissues. Although short-lived reactive species are difficult to measure, many reports have shown their significant contribution. In this study, we have attempted higher temporal resolution (~0.1 ms) of ^•OH by using a high-speed liquid flow (~10 m/s) into atmospheric pressure plasma. In addition, a reaction-diffusion model was built that exhibits a spatiotemporal distribution consistent with the measured ^•OH decay.