The bactericidal mechanism of plasma activated water (PAW) is an important issue that needs to be addressed in plasma medicine. In this paper, the pH value and the concentrations of RONS (H 2 O 2 , ##IMG## [http://ej.iop.org/images/0022-3727/53/18/185207/dab703aieqn001.gif] , ##IMG## [http://ej.iop.org/images/0022-3727/53/18/185207/dab703aieqn002.gif] , OH·, ONOOH and 1 O 2 ) in PAW were measured by chemical and optical methods. The bacteria E. coli was used as a microbial model to study the bactericidal effects of PAW. It was found that the concentration of peroxynitrous acid (ONOOH) in PAW was too low to directly realize complete bactericidal effects of PAW. Actually, ONOOH further interacted with H 2 O 2 to generate peroxynitric acid (O 2 NOOH), which eventually decomposed into superoxide anion radical ( ##IMG## [http://ej.iop.org/image...]

中文翻译：

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血浆活化水杀菌过程中的关键反应物种

血浆活化水（PAW）的杀菌机理是血浆医学中需要解决的重要问题。本文介绍了pH值和RONS（H 2 O 2，## IMG ## [http://ej.iop.org/images/0022-3727/53/18/185207/dab703aieqn001.gif] ，PAW中的## IMG ## [http://ej.iop.org/images/0022-3727/53/18/185207/dab703aieqn002.gif]、OH·、ONOOH和1 O 2）通过化学方法进行测量，光学方法。细菌大肠杆菌被用作微生物模型来研究PAW的杀菌作用。发现PAW中过氧亚硝酸（ONOOH）的浓度太低，不能直接实现PAW的完全杀菌作用。实际上，ONOOH进一步与H 2 O 2相互作用生成过硝酸（O 2 NOOH），最终分解为超氧阴离子自由基（## IMG ## [http：//ej.iop.org/image ...]