The purpose of this article is to provide a sustainable dielectric barrier discharge for the treatment of living biological tissue. The investigation aims at the innocuousness of plasma treatment by DBD with biological tissue as counterelectrode on biomaterial. Instead of human tissue, pork and in vitro living epidermal human cells are used for the plasma treatment. Potential detrimental effects like current conduction, temperature, ozone and UV‐irradiation are investigated. All the levels are below the danger threshold. After plasma treatment of human cells, no cell damage could be detected. Hence applications on human beings with a DBD plasma source seems to be possible.

No abstract

Summary Design and manufacturing of UHV chambers The selection of materials, the finish of the surfaces, the design of the construction: What influence do these factors have in the area of ultra‐high vacuum? Which pumping power is actually required for the respective application? Why can it be difficult to achieve a suitable end pressure? The author gives an overview of the key points to be considered when designing and manufacturing chambers for the UHV. The article is not just about manufacturing, it also touches product safety and risk assessment issues.