论文标题
低功率柔性介电屏障排放消毒表面并改善过氧化氢的作用
A low power flexible dielectric barrier discharge disinfects surfaces and improves the action of hydrogen peroxide
论文作者
论文摘要
迫切需要公众使用消毒和灭菌设备，可以通过使用冷大气压力等离子体来实现的创新策略来实现。在这里，我们探索并评估一种方法，结合了介电屏障放电（DBD）的柔性印刷电路设计以及一种环境安全的化学试剂，可从细菌污染物中进行表面净化。该设备在环境空气中运行，没有任何额外的气流，其功率密度约为0.5 w/cm^2。使用3％的过氧化氢溶液作为模型试剂，我们证明，与单独的过氧化氢和单独的柔性DBD相比，在90秒内，表面污染物的细菌负荷降低> 60秒，大约3LOG10和2LOG10的降低。血浆生物活性特性和过氧化氢的协同作用导致表面消毒的显着改善。这为使用低功率柔性DBD等离子体源进行表面消毒和净化开辟了新的可能性。
There is an urgent need for disinfection and sterilization devices accessible to the public that can be fulfilled by innovative strategies for using cold atmospheric pressure plasmas. Here we explore and evaluate an approach combining a flexible printed circuit design of a dielectric barrier discharge (DBD) with an environmentally safe chemical reagent for surface decontamination from bacterial contaminants. The device operates in ambient air without any additional gas flow at a power density of about 0.5 W/cm^2. Using a 3% hydrogen peroxide solution as a model reagent we demonstrate improved reduction in the bacterial load of a surface contaminant of >6log10 in 90 seconds, about 3log10 and 2log10 faster compared to hydrogen peroxide alone and the flexible DBD alone, respectively, for the same treatment time. The synergistic action of the plasma bioactive properties and hydrogen peroxide result in a dramatic improvement of surface disinfection. This opens new possibilities for using the low power flexible DBD plasma sources for surface disinfection and decontamination.
