9 results about "Liquid plasma" patented technology

The invention relates to the technical field of biomedical materials, in particular to plasma matrix gel as well as a preparation method and application thereof. The preparation method comprises the following steps: centrifuging a whole blood sample in an environment containing negative oxygen ions to obtain the plasma matrix gel; or, the preparation method comprises the following steps: incubating the liquid plasma matrix in an environment containing negative oxygen ions to obtain the plasma matrix gel. According to the preparation method provided by the invention, the whole blood or liquid plasma matrix is treated in the negative oxygen ion environment, a platelet surface receptor mediated calcium signal channel can be efficiently activated, an endogenous blood coagulation cascade reaction is triggered to form the stable three-dimensional fibrin gel, the preparation method is simple and convenient to operate, and the preparation method is suitable for industrial production. The preparation method has the advantages that the addition of exogenous thrombin is completely avoided, the immunogenicity risk is avoided, the requirement on the material of the tube for preparing the plasma matrix is reduced, and a new solution is provided for the preparation of the plasma matrix gel.

The utility model relates to a liquid plasma activating treatment device which mainly comprises a containing cavity and a plasma discharging structure, and the containing cavity is of a hollow cylindrical structure and is used for containing a liquid container; the plasma discharge structure is arranged on the inner wall of the accommodating cavity; the high-voltage line interface connects the plasma discharge structure and the high-voltage pulse power supply. The device adopts a non-contact activation design, takes the tube wall of a liquid container as a dielectric barrier layer, and generates plasma through dielectric barrier discharge, so that active components penetrate through the tube wall to act on internal liquid, and direct contact between an electrode and the liquid is avoided. A limiter is arranged at the bottom of the containing cavity and can adjust the position of the liquid container to control the liquid level. The device can further comprise a liquid level sensor, a temperature sensor, a temperature control component, a gas circulation path and a control system, and accurate control over the liquid level height, the treatment temperature and the gas environment is achieved. And by arranging a plurality of parallel containing cavities, the device can also realize high-throughput treatment.

A composition comprising a liquid plasma according to the present invention can induce growth inhibition and death of brain tumor cells through the combined effect of radicals, ionic species, and pH effect, and thus can be effectively used for preventing or treating brain tumors. In addition, the present invention is a non-invasive physical and chemical treatment approach with low drug dependence, can exhibit a synergistic effect when used in combination with existing anticancer drugs, and has a high potential for application to the treatment of various nervous system tumors or metastatic brain diseases including glioblastoma and auditory nerve tumors.

The present application relates to terephthalic acid hydrorefining catalyst preparation technical field, specifically to a kind of preparation and application of supported palladium catalyst of plasma cooperation.This application overcomes the problems that active component of supported palladium catalyst is easy to agglomerate, poor in anti-poisoning ability and metal is easy to peel off and deactivate under high temperature environment.By liquid plasma, surface energy excitation is carried out on non-carbon carrier, and nano-defects with quantum trap effect are constructed;Then, using polyethyleneimine or phytic acid and other bifunctional organic ligand chelate palladium precursor solution, combined with ultrafast joule heat pulse flash process, ligand is induced to carbonize in situ on metal surface;Finally, assisted by plasma directional crystal face induced reduction;The dispersion of active center is effectively improved, the space confinement and shape selection shielding of active site are realized, the metal loss rate and the residual amount of carboxybenzaldehyde are reduced, and the anti-poisoning performance and service life of the catalyst under industrial conditions are enhanced.

The application relates to the technical field of liquid-phase plasma sterilization, and particularly discloses a liquid-phase plasma sterilization system, a control method thereof and a cleaning device.The sterilization system comprises a disinfectant water preparation device, a liquid level detection device and a control module.The disinfectant water preparation device comprises a liquid storage structure and a plasma generation unit.The liquid level detection device comprises a float and a first liquid level detection mechanism.The first liquid level detection mechanism comprises multiple first sensing components arranged in sequence along the height direction of the liquid storage structure.The multiple first sensing components are distributed on the upper and lower sides of a preset water inlet level.When the water in the liquid storage structure reaches the water inlet level, the multiple first sensing components can all trigger the float and generate sensing signals.The application can judge whether the liquid storage structure reaches the preset water inlet level through the sensing signals of the multiple first sensing components during the water inlet process, can reduce errors, improve the detection accuracy, and can effectively avoid the problems of large detection errors and low precision of a single sensing component.

The application discloses a kind of plasma device and its use method for processing liquid, it is related to plasma processing equipment technical field, the processing liquid plasma device of the present application includes reactor, micro-bubble generating unit and gas compression assembly, reactor is equipped with the reaction cavity for liquid flow;Micro-bubble generating unit is below the reactor, and is communicated reaction cavity, micro-bubble generating unit is used to provide bubble to reaction cavity;Gas compression assembly includes gas compression disc and drive mechanism connected with gas compression disc, gas compression disc is movably arranged in reaction cavity, and drive mechanism is used to drive gas compression disc to move along the height direction of reactor, to control the flow speed of bubble.The application can control the up-moving speed of bubble, make bubble evenly distributed in liquid, guarantee the processing effect of subsequent plasma discharge processing to liquid.

The invention relates to a liquid plasma activating treatment method and device. The method comprises the steps that liquid to be treated is sealed in a container, gas containing oxygen and nitrogen is introduced, the liquid level is controlled to be located below the plasma discharge structure by adjusting the limiting stopper, and activation treatment is conducted by means of plasma generated through dielectric barrier discharge. The device adopts a multi-accommodating-cavity parallel processing structure, is equipped with a limiter to accurately adjust the liquid level position, and integrates a power supply module, a control module and a temperature control system to realize high-flux and non-contact activation. The method is suitable for treating platelet-rich plasma, promotes platelet to release growth factors by increasing the concentration of active oxygen and active nitrogen components, and enhances the biological activity of the platelet. According to the scheme, the problems of complicated operation, pollution risk and low automation degree in the prior art are solved.

An apparatus for treating a substrate includes a support unit that supports the substrate and a nozzle that dispenses liquid plasma to etch a film formed on the substrate supported on the support unit.

The in-liquid plasma processing apparatus includes a processing space and an active species supply unit capable of supplying in-liquid plasma to the processing space. The active species supply unit includes: a generation space into which a liquid can be introduced; a shower plate capable of introducing an active species contained in the plasma in the liquid generated in the generation space into the processing space, the shower plate having a plurality of shower holes arranged so as to be dispersed along the processing space; and a microwave supply unit including a radial line slot antenna having a plurality of slots arranged so as to be dispersed along the generation space. The microwave supply unit can supply microwaves to the liquid in the generation space via the radial line slot antenna.