Effect of chloride on bacterial inactivation by discharge plasma at the gas-solution interface: Potentiation or attenuation?
Effect of chloride on bacterial inactivation by discharge plasma at the gas-solution interface: Potentiation or attenuation?
复制标题
氯化物对气-溶液界面放电等离子体灭活细菌的影响：增强还是减弱？
DOI：
10.1002/ppap.201700153
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发表时间：
2018-03-01
影响因子：
3.5
通讯作者：
Huang, Qing
中科院分区：
文献类型：
--
作者：
Ke, Zhigang;Chen, Zhu;Huang, Qing
气体-溶液界面放电等离子体杀菌受多种因素影响。氯化物对所有生命都是必不可少的，但氯化物是否可以调节等离子体产生的活性物质的组成和水平，从而影响杀菌效率仍然不确定。本文研究了等离子体对革兰氏阴性大肠杆菌和革兰氏阳性枯草芽孢杆菌的灭活行为。氯离子对O-2等离子体的杀菌效果有增强作用，而对N-2和空气等离子体的杀菌效果有减弱作用。为了揭示潜在的机制，氯化物对反应物种包括氯，羟基自由基，过氧化氢和亚硝酸盐的产生的影响进行了研究。[图形]。
Bacterial inactivation by discharge plasma at the gas-solution interface is affected by many factors. Chloride is essential for all life, but whether chloride can modulate the compositions and levels of plasma-produced reactive species and consequently influence the bactericidal efficiency is still undefined. In this work, the plasma-induced inactivation behavior of Gram-negative Escherichia coli and Gram-positive Bacillus subtilis without or with the presence of chloride were investigated. Potentiation effect of chloride on bacterial inactivation was observed for O-2 plasma, but attenuation effect was discovered for N-2 and air plasmas. For unveiling the underlying mechanisms, the influence of chloride on the production of reactive species including chlorine, hydroxyl radical, hydrogen peroxide and nitrite was examined.[GRAPHICS].