[8p-Z07-1~17] 8.4 Plasma life sciences

[8p-Z07-1] Application of PVA-KI chemical probe to ROS research in the flexible tubes

〇Hiroto Matsuura^1,2, Bounyang Ouanthavinsak², Tung Nguyen Tran², Min Hu², Ryoko Asada^1,2 (1.OPU RRC, 2.OPU Eng.)

Keywords:chemical probe, reactive oxygen spices, atmospheric pressure plasma

Escherichia coli samples set inside a long flexible tube was found to be inactivated by atmospheric plasma jet treatment, not only at plasma flame contacting point, but also at the tube exit.According to this research, roll of reactive oxygen radical(ROS) was confirmed biologically, although direct radical detection has been difficult. Polyvinyl Alcohol (PVA) - Potassium Iodine (KI) reaction was recently proposed to use as chemical dosemeter of proton beam or X-ray. We introduced this chemical sample to study ROS and the first preliminary result was already reported. In this work, importance of sample and irradiation condition is reported. By considering it, ROS research in the flexible tube has been improved.