[9a-E308-1~11] 8.1 Plasma production and diagnostics

10:15 AM - 10:30 AM JST(1:15 AM - 1:30 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[9a-E308-6] Absorption spectra of plasma-treated carboxy-PTIO aqueous solution

〇Hiroto Mori¹, Hirofumi Kurita², Tatsuru Shirafuji¹, Jun-Seok Oh¹ (1.Osaka Metropol. Univ., 2.Toyohashi Univ. of Tech)

Keywords:

atmospheric-pressure plasma,ultraviolet absorption spectroscopy

In this presentation, we focus on nitric oxide (•NO), an important biological signaling molecule among reactive oxygen and nitrogen species generated by low-temperature atmospheric-pressure plasma, whose evaluation remains challenging. Using Carboxy-PTIO, which reacts with •NO, and UV-vis spectroscopy, we attempted to identify and quantitatively evaluate •NO based on changes in the absorption spectra before and after plasma irradiation. In particular, the effect of irradiation conditions on the amount of •NO supplied is discussed based on the decrease in absorbance around 358.5 nm.