SPARK(编程语言)
等离子体
火花放电
抗菌剂
放电等离子烧结
材料科学
化学
物理
纳米技术
冶金
核物理学
陶瓷
物理化学
电极
有机化学
计算机科学
程序设计语言
作者
Matthew J. Pavlovich,Taizo Ono,Connor Galleher,Brandon Curtis,Douglas S. Clark,Zdenko Machala,David B. Graves
标识
DOI:10.1088/0022-3727/47/50/505202
摘要
We demonstrate and analyse the generation of nitrogen oxides and their antimicrobial efficacy using atmospheric air spark-like plasmas. Spark-like discharges in air in a 1 L confined volume are shown to generate NOx at an initial rate of about 1.5 × 1016 NOx molecules/J dissipated in the plasma. Such a discharge operating in this confined volume generates on the order of 6000 ppm NOx in 10 min. Around 90% of the NOx is in the form of NO2 after several minutes of operation in the confined volume, suggesting that NO2 is the dominant antimicrobial component. The strong antimicrobial action of the NOx mixture after several minutes of plasma operation is demonstrated by measuring rates of E. coli disinfection on surfaces and in water exposed to the NOx mixture. Some possible applications of plasma generation of NOx (perhaps followed by dissolution in water) include disinfection of surfaces, skin or wound antisepsis, and sterilization of medical instruments at or near room temperature.
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