The effect of different cold atmospheric plasma sources and treatment modalities on the generation of reactive oxygen and nitrogen species in water

Reactive oxygen and nitrogen species (RONS) can be generated in liquids by different cold plasma processes. These species can influence cell biology and pathological states, and trigger wound healing, disinfection, and cancer treatments. The optimization of plasma sources' configurations and experimental conditions is fundamental to dose-produced RONS in liquids. This research is a case study comparing RONS generation (H2O2 and NO2-) in water, after exposure to two different atmospheric pressure cold dielectric barrier discharge (DBD) plasma sources: a plasma jet-DBD and a planar-DBD operating in contact with the liquid and in remote, respectively. The data demonstrate that the reactor geometry and the treatment modality strongly impact the generation of the active species in water.