A plasma forming device includes a housing unit and an electrode unit. The housing unit includes an inner housing having a first gas inlet, a reaction channel that spatially communicates with the first gas inlet, and an inner housing opening that spatially communicates with the reaction channel. The first gas inlet is adapted for entrance of a first gas therethrough into the reaction channel. The electrode unit includes an inner dielectric tube extending in the reaction channel, an inner electrode sleeved on the inner dielectric tube, an outer dielectric tube disposed in the reaction channel, and surrounding the inner electrode and a portion of the inner dielectric tube, and an outer electrode sleeved on the outer dielectric tube and aligned with the inner electrode. The inner electrode and the outer dielectric tube cooperatively define a curved passage that is adapted for passage of the first gas therethrough.

Plasma jet assemblies utilizing dielectric substrates, and methods of making the same and using the same, are described.

There is provided a dielectric barrier electrical discharge apparatus, system and method. The apparatus comprises at least two electrodes arranged in use to provide at least one anode and at least one cathode an electric field thereby being establishable therebetween, the at least two electrodes being separated to allow a fluid to be present between the electrodes in use. At least one of the electrodes has a dielectric portion connected to at least part of said electrode, and a sub-macroscopic structure is connected to at least one of the electrodes or dielectric portion.

A system is provided for generating plasma within narrow diameter tubes, e.g., tubes with an inner diameter of less than 1 millimeter. The system may comprise the tube, a nozzle connected to at least one end of the tube configured to supply a gas into the interior of the tube at atmospheric pressure, at least one ring-shaped anode electrode and configured to surround an outer surface of the tube, at least one ring-shaped cathode electrode spaced apart from the anode electrode along the longitudinal axis and configured to surround the outer surface of the tube, and a voltage source connected to the at least one anode electrode. When activated, the system is configured to generate an electric field between the electrodes which ignites a plasma within the gas in the interior of the tube.

A dielectric barrier discharge device includes a dielectric nozzle that circumscribes an interior cavity. The dielectric nozzle has a first end, a second end opposite the first end, an interior side, and an exterior side opposite the interior side. The interior cavity spans from the first end to the second end, and the interior cavity has an open end at the second end of the dielectric nozzle. There is a first electrode on the exterior side, and a second electrode in the interior cavity. A gas inlet is fluidly connected with the interior cavity, and there is a gap that runs between the second electrode and the interior side. The gap may vary in size along the second electrode. A power supply is electrically coupled with the first electrode and the second electrode.

This disclosure relates to stabilized anti-cancer atmospheric plasma (CAP)-stimulated media, to methods for preparing such media, and to methods of treatment using such media.