Verlackt C C W, Van Boxem W, Bogaerts A
Research group PLASMANT, University of Antwerp, Department of Chemistry, Universiteitsplein 1, 2610 Wilrijk, Belgium.
Phys Chem Chem Phys. 2018 Mar 7;20(10):6845-6859. doi: 10.1039/c7cp07593f.
The interaction between cold atmospheric pressure plasma and liquids is receiving increasing attention for various applications. In particular, the use of plasma-treated liquids (PTL) for biomedical applications is of growing importance, in particular for sterilization and cancer treatment. However, insight into the underlying mechanisms of plasma-liquid interactions is still scarce. Here, we present a 2D fluid dynamics model for the interaction between a plasma jet and liquid water. Our results indicate that the formed reactive species originate from either the gas phase (with further solvation) or are formed at the liquid interface. A clear increase in the aqueous density of HO, HNO/NO and NO is observed as a function of time, while the densities of O, HO/O and ONOOH/ONOO are found to quickly reach a maximum due to chemical reactions in solution. The trends observed in our model correlate well with experimental observations from the literature.
冷大气压等离子体与液体之间的相互作用在各种应用中受到越来越多的关注。特别是，经等离子体处理的液体（PTL）在生物医学应用中的使用变得越来越重要，尤其是在灭菌和癌症治疗方面。然而，对等离子体 - 液体相互作用的潜在机制的了解仍然很少。在这里，我们提出了一个用于等离子体射流与液态水相互作用的二维流体动力学模型。我们的结果表明，形成的反应性物种要么起源于气相（并进一步溶剂化），要么在液体界面处形成。观察到HO、HNO/NO和NO的水溶液密度随时间明显增加，而由于溶液中的化学反应，O、HO/O和ONOOH/ONOO的密度很快达到最大值。我们模型中观察到的趋势与文献中的实验观察结果很好地相关。
