Abstract:
Methods of increasing the total power of non-thermal plasma power systems are described. Various embodiments of the present invention provide non-thermal plasma reactor assemblies and methods of operating said assemblies, each assembly comprising: (a) at least two non-thermal plasma reactors, each reactor comprising at least one inlet circumferential gas flow inlet apparatus, an electrode, and a flow restricted exit portal, said reactor configured to eject a jet of non-thermal plasma external to said reactor; (b) said at least two non-thermal plasma reactors configured to work in tandem with one another such that a first reactor electrode can be maintained at a high voltage electric potential relative to a second reactor electrode, said first and second reactor electrodes forming an electrode pair able to maintain a non-thermal plasma discharge between the first and second reactor electrodes.
Abstract:
Disclosed is a device and method for contacting a biological substrate. A non-thermal plasma device delivers a non-thermal plasma discharge using a dielectric conduit, an igniter electrode and a RF electrode. The dielectric conduit fluidicly communicates a gas therethrough and an igniter electrode ionizes at least a portion of the gas. The RF electrode, disposed circumferentially proximate to the exterior of the dielectric conduit, generates non-thermal plasma from the ionized gas. The non-thermal plasma is discharged from the dielectric conduit and contacts a biological substrate. The non-thermal plasma discharge may be suitable for tissue bonding and sterilization applications.
Abstract:
Methods of increasing the total power of non-thermal plasma power systems are described. Various embodiments of the present invention provide non-thermal plasma reactor assemblies and methods of operating said assemblies, each assembly comprising: (a) at least two non-thermal plasma reactors, each reactor comprising at least one inlet circumferential gas flow inlet apparatus, an electrode, and a flow restricted exit portal, said reactor configured to eject a jet of non-thermal plasma external to said reactor; (b) said at least two non-thermal plasma reactors configured to work in tandem with one another such that a first reactor electrode can be maintained at a high voltage electric potential relative to a second reactor electrode, said first and second reactor electrodes forming an electrode pair able to maintain a non-thermal plasma discharge between the first and second reactor electrodes.
Abstract:
The invention is directed to apparatus for treating water by exposing the water to a pulsed plasma discharge. The pulsed plasma discharge is generated using a suitable electrode configuration to generate the plasma discharge in the fluid. Apparatus useful in the method may include a vessel, at least two electrodes for generating a plasma discharge in water, and a flow inlet and a flow outlet to allow water to be passed through the vessel. Also described is an in-line water treatment, where a pulsed plasma discharge is used in a pipe carrying moving water. Plasma based fluid treatment system may have many advantages in comparison to other treatment methods, such as very minimal maintenance, low operating power, and minimal pressure loss through the device.
Abstract:
The present invention is direct to a nano-probe corona tool and uses thereof A nano-probe corona tool is disclosed having a tip with a diameter in the nano-scale, typically around 100 nm. The nano-probe corona tool is constructed of electrically conductive material. On the other end of the tool, a pulsed voltage source outputs a pulsed voltage to generate a pulsed electrical potential at the tip. The pulsed electrical potential at the tip causes a plasma discharge corona to occur. Uses of the corona discharge include, but are not limited to, optical emission spectroscopy, in the enhancement of deposition of coatings and nanoscale welding, e.g., nanotube or nanowires to a contact pad and welding two nanowires together, and in nanoscale surgery. For example, a nano-probe comprising CNTs may be inserted into cell membranes. The resulting corona discharge may be used to destroy tumors within the cell.
Abstract:
The present invention consists of a method of pre-treatment of adulterated water for distillation, including adulterated water produced during hydraulic fracturing (“fracking”) of shale rock during natural gas drilling. In particular, the invention is directed to a method of treating adulterated water, said adulterated water having an initial level of bicarbonate ion in a range of about 250 ppm to about 5000 ppm and an initial level of calcium ion in a range of about 500 ppm to about 50,000 ppm, said method comprising contacting the adulterated water with a non-thermal arc discharge plasma to produce plasma treated water having a level of bicarbonate ion of less than about 100 ppm. Optionally, the plasma treated water may be further distilled.
Abstract:
Disclosed is a device and method for contacting a biological substrate. A non-thermal plasma device delivers a non-thermal plasma discharge using a dielectric conduit, an igniter electrode and a RF electrode. The dielectric conduit fluidicly communicates a gas therethrough and an igniter electrode ionizes at least a portion of the gas. The RF electrode, disposed circumferentially proximate to the exterior of the dielectric conduit, generates non-thermal plasma from the ionized gas. The non-thermal plasma is discharged from the dielectric conduit and contacts a biological substrate. The non-thermal plasma discharge may be suitable for tissue bonding and sterilization applications.
Abstract:
Method for the non-thermal treatment of human or animal tissue with high-voltage electrical discharge plasma is disclosed. The disclosed method employs current through plasma and through tissue not for the purpose of heating the tissue, but instead to maintain the plasma proximate to the tissue being treated. Also disclosed is a method of limiting the current through plasma and through tissue to minimize tissue heating by placement of an insulator or semiconductor between an electrode and tissue resulting in generation of a high-voltage discharge similar to a dielectric barrier discharge. The disclosed non-thermal plasma treatment can be employed to promote coagulation of blood, sterilization, disinfection, re-connection of tissue, and treatment of tissue disorders without causing significant thermal tissue damage.
Abstract:
Aspects of the present subject matter are directed to a method comprising contacting an fluid, optionally containing an added organic material, with a non-thermal plasma to form a disinfection composition, wherein the disinfection composition is a liquid, and contacting a surface with the disinfection composition, wherein the surface is at least partially disinfected upon contact with the disinfection composition. Additional aspects of the present subject matter are directed to a method comprising forming a disinfection composition by contacting an organic material with a non-thermal plasma, wherein the disinfection composition is a liquid. A further aspect of the present subject matter is directed to a disinfection composition comprising an organic material contacted by a non-thermal plasma, wherein the disinfection composition is a liquid.
Abstract:
Methods and devices for treating surfaces of objects using a non-thermal plasma are disclosed herein. The non-thermal plasma is generated through the use of an apparatus configured to generate a non-thermal plasma on its surface. The apparatus is comprised of a substrate that contains one or more electrodes of different polarity. The electrodes are placed within a layer of the substrate acting as a dielectric layer. The apparatus may also have additional layers to contain the dielectric layer. When an appropriate potential, being either an alternating current or pulsed high voltage potential, is applied and removed from the one or more electrodes, the gas on at least one surface of the apparatus becomes ionized and forms a non-thermal plasma. The electrodes can be configured to be of various shapes and sizes to modify or tune the plasma.