Evaluation of the Interaction of Cold Atmospheric Plasma of a Dielectric Barrier Discharge with the Surface of Various Materials and Biological Objects

The application of plasma technologies in engineering, and particularly in healthcare, requires assessing the impact and interaction of plasma with material surfaces. This article presents developed methods for reliably monitoring the plasma state and its interaction with the surface of objects, ensuring the reproducibility of technological processes for surface treatment of materials and therapeutic procedures, as well as expanded opportunities for increasing the efficiency of plasma technologies in healthcare. An assessment of the impact of plasma on the surface of various organic and inorganic materials, biological tissues, and an assessment of the interaction with them was carried out. For a qualitative and quantitative assessment, it is proposed to use the volt-ampere characteristics and the power released inthe “plasma-object” load. It has been established that the power released at the load during interaction with cold plasma depends on the material being exposed to the plasma. This parameter must be monitored when processing materials and biological tissues. It is shown that there are differences in the values of active power released at the electrodes of the discharge system for biological tissue samples (subcutaneous fat and muscle tissue). Moreover, this difference increases with increasing output voltage.