A method for ionizing gaseous samples by dielectric barrier discharge and for subsequently analyzing the produced sample ions in an analysis appliance, in particular a mass spectrometer or an ion mobility spectrometer, produces the sample ions by a plasma caused by a dielectric barrier discharge, wherein the dielectric barrier discharge is produced by virtue of a plasma gas being supplied through a capillary made of a dielectric material, wherein a wire-shaped electrode is arranged within the capillary, the electrode being connected to an AC voltage source, wherein the gaseous sample is supplied to the exit region of the capillary, wherein the wire-shaped electrode is connected to the AC voltage source on the high-voltage side.

The plasma application therapeutic apparatus of the present invention includes: a plasma generating unit, a nozzle for discharging at least one of plasma generated by the plasma generating unit and a reactive gas generated by the plasma, a supply source for supplying a plasma generating gas to the plasma generating unit, an operation unit which is configured to be activated by a user to allow the supply source to supply a predetermined amount of the plasma generating gas to the plasma generating unit, and a reporting unit which is configured to report a remaining gas information in terms of remaining number of times allowed for the supply source to supply the plasma generating gas to the plasma generating unit, based on the plasma generating gas remaining in the supply source.

A system for generating cold plasma is presented, suitable for use in in-vivo treatment of biological tissue. The system comprising: a control unit connectable to an elongated member at a first proximal end of the elongated member. The elongated member comprises a plasma generating unit at a second distal end thereof and gas and electricity transmission channels extending from said first proximal end towards said plasma generating unit. The control unit comprises a gas supply unit configured to provide predetermined flow rate of selected gas composition through said gas transmission channel and a power supply unit configured to generate selected sequence of high-frequency electrical pulses, typically in mega Hertz range, directed through said electricity transmission channel, thereby providing power and gas of said selected composition to the plasma generating unit for generating cold plasma.

Systems and methods for highly reproducible and focused plasma jet printing and patterning of materials using appropriate ink containing aerosol through nozzles with narrow orifice and tubes with controlled dielectric constant connected to high voltage power supply, in the presence of electric field and plasma, that enables morphological and/or bulk chemical modification and/or surface chemical modification of the material in the aerosol and/or the substrate prior to printing, during printing and post printing.

Described herein are apparatus and methods of printing in the presence of plasma. The apparatus includes a modular print head comprising an inlet module, a plasma module with movable electrode configurations, and a nozzle module. The modular design of the print head allows for printing on and treatment of surfaces in many different applications.

A pathogen and pest exterminating device that can efficiently exterminate pathogens and pests in a shorter time. One electrode includes a part to be inserted into a reaction vessel, and other electrode is arranged in a position that opposes the insertion part. A water supply unit is provided to supply water to the reaction vessel through the insertion part, and a gas supply unit provided of supplying gas, which will become plasma, to the reaction vessel. A power supply unit is provided to be capable of applying voltage between the insertion part and the other electrode such that OH radicals are generated inside the reaction vessel to which the water and the gas are supplied. The insertion part is formed in a shape that restricts, between itself and the other electrode, a flow rate of water from the water supply unit such as a coil, waveform, or mesh shape.

The inventive concept provides a nozzle for dispensing a treatment liquid in which plasma is generated. The nozzle includes a body having an interior space, a liquid supply unit that supplies the treatment liquid into the interior space, and electrodes that generate the plasma in the interior space. The liquid supply unit supplies the treatment liquid in a bubbling state into the interior space, or causes the treatment liquid to bubble in the interior space.

A plasma application apparatus including: an application instrument which has a plasma generation unit, and is configured to discharge at least one of plasma generated by the plasma generation unit and a reactive gas generated by the plasma; and a supply unit for supplying electric power and a plasma generating gas to the application instrument, a supporting part extending upward from the supply unit, a power/gas supply line connecting the application instrument to the supply unit, and a connecting part connecting at least one of the application instrument and the power/gas supply line to the supporting part,

Described are a low temperature plasma reaction device and a hydrogen sulfide decomposition method. The reaction device includes: a first cavity; a second cavity, the second cavity being embedded inside or outside the first cavity; an inner electrode, the inner electrode being arranged in the first cavity; an outer electrode; and a barrier dielectric arranged between the outer electrode and the inner electrode. The hydrogen sulfide decomposition method includes: implementing dielectric barrier discharge at the outer electrode and the inner electrode of the low temperature plasma reaction device, introducing a raw material gas containing hydrogen sulfide into the first cavity to implement a hydrogen sulfide decomposition method, and continuously introducing a thermally conductive medium into the second cavity in order to control the temperature of the first cavity of the low temperature plasma reaction device.

An apparatus configured to reduce drag is provided. The apparatus includes a plasma actuator including a hollow cylinder with two open bases, a first electrode disposed inside the cylinder, a second electrode disposed outside the cylinder, and a plasma layer disposed inside the cylinder next to the first electrode, a surface including the plasma actuator disposed on the surface, and a motion actuator configured to move the plasma actuator in a sweeping motion across a face of the surface.