Reactive Oxygen Species in a Non-thermal Plasma Microjet and Water System: Generation, Conversion, and Contributions to Bacteria Inactivation-An Analysis by Electron Spin Resonance Spectroscopy

• Published in: Plasma processes and polymers Vol. 9; no. 4; pp. 417 - 424
• Main Authors: Wu, Haiyan, Sun, Peng, Feng, Hongqing, Zhou, Haixia, Wang, Ruexue, Liang, Yongdong, Lu, Jingfen, Zhu, Weidong, Zhang, Jue, Fang, Jing
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 01.04.2012; WILEY‐VCH Verlag; Wiley-VCH
• Subjects: electron spin resonance; Exact sciences and technology; non-thermal plasma; Physics; Physics of gases, plasmas and electric discharges; Physics of plasmas and electric discharges; Plasma applications; radicals; reactive oxygen species; Plasma applications; Oxygen; radicals; Singlet state; Non thermal plasma; Inactivation; Concentration measurement; electron spin resonance; Direct current; reactive oxygen species; Bacteria; EPR spectroscopy; non-thermal plasma

Hydroxyl radical (•OH) and singlet oxygen (1O2) were detected by electron spin resonance (ESR) spectroscopy in a direct current He/O2 (2%) non‐thermal plasma microjet‐water system. ^{ \bullet }{\rm O}_{{\rm 2}}^{- } $ is shown to be the precursor of •OH. The concentrations of 1O2 and •OH are evaluat...