80results about "Electrostatic separators" patented technology

The present invention pertains to a system and method for a medical research instrument device consisting of instrument equipment and computer controls. The instrument equipment consists of electronic boards that are used to control and monitor the various actuators and sensors within the instrument. Software is executed on the computer to drive the human interface and control assay methods. The present invention uses dielectrophoresis ("DEP") to preferentially collect specific particles from a biological sample. The type of particles collected are driven by the parameters used to define the electric field used in DEP. The device passes the samples and various reagents across a patterned silicon die capable of creating the electric fields used within the DEP process.

This development corresponds to a system with electronic components for the treatment of high-concentration fluids or solutions or suspensions with solutes, such as wastewater treatment, obtaining valuable elements that are part of a fluid, seawater desalination, among other processes. The system comprises electrodes, tank, solid-state electronic device, a system management algorithm, and an optional solids removal device. This development also intends to protect a fluid or solution treatment procedure that generally involves two joint or sequential stages, whereby a dynamic electro-coagulation takes places first, followed by dynamic electro-flocculation, in order to separate liquids from dissolved solids or solutes from a solution.

The application discloses a voltage calculation method and device of a filtering device, equipment and a storage medium, relates to the technical field of liquid purification, and discloses a voltage calculation method of a filtering device, which comprises the following steps: acquiring the type of impurities in a liquid to be filtered; determining a theoretical voltage required for destroying an electrical double layer of the impurities based on the type; simulating the process of destroying the electrical double layer based on the theoretical voltage, and the aggregation process of separated impurities obtained after the electrical double layer is destroyed, to obtain a predicted minimum voltage required for aggregating the impurities. That is, the use of high-voltage polarization impurities is avoided, the voltage applied to the liquid to be filtered is just enough to aggregate the impurities, the waste of electric power is avoided, and thus the energy consumption is reduced.

The present disclosure describes a method, a system, and a computer program product of performing a separation on a field flow fractionator. In an embodiment, the method, the system, and the computer program product include executing, by a computer system, a set of logical operations measuring a mass flow control valve position of a control valve connected to a mass flow controller coupled to a field flow fractionator and a pressure control valve position of a control valve connected to a pressure controller coupled to the field fold fractionator in an optimal stability state, storing, by the computer system, the valve positions to a data store as preset values, and executing, by the computer system, a set of logical operations retrieving the preset values from the data store and setting initial conditions for the controllers corresponding to the preset values, resulting in a switch mode of the field flow fractionator.

Disclosed in the present invention are a particle accommodating device, and a particle contactless processing apparatus and a light sensing structure thereof. The particle accommodating device is used for accommodating a liquid specimen that contains a plurality of particles. The accommodating device comprises a light sensing structure and a mating structure spaced apart from the light sensing structure. The light sensing structure comprises a substrate, an electrode layer and a photoelectric layer which are formed on the substrate, and an insulator formed on the photoelectric layer. The insulator comprises a charge-type track protruding from the photoelectric layer. The photoelectric layer is operable to generate a plurality of charges that are concentrated on the charge-type track, so that the charge density of the charge-type track is greater than that of the outer surface of the photoelectric layer, and thus the charge-type track can position at least one of the particles thereon by electrostatic adsorption. Thus, the particles are moved and positioned by means of the electrostatic adsorption, thereby achieving precise positioning of the particles.

To provide a seawater desalination system and a seawater desalination method.SOLUTION: A seawater desalination system 1000 includes a seawater desalination apparatus 70 assembled with, as one unit, a first pretreatment apparatus 1001, a second pretreatment apparatus 1002 provided in a rear flow of the first pretreatment apparatus 1001, a first ion separation apparatus 10A that penetrates cations in the seawater and blocks anions, and a second ion separation apparatus 10B that is provided in the subsequent stage side of the first ion separation apparatus 10A, penetrates anions in the penetration liquid with cations having been penetrated and blocks cations, wherein seawater with a salinity concentration of, e.g., 3.5%, is converted to a salinity concentration of 0.05% to be usable as drinking water.SELECTED DRAWING: Figure 23

A method for removing noxious, hazardous, toxic, mutagenic, and / or carcinogenic compounds and / or precursor compounds from a comingled gas, liquid, and / or solid stream is described. In one embodiment, the method is used to prepare the stream for feeding to an oxidizer, such as a thermal oxidizer, to reduce the amount of particulate matter discharged by the oxidizer and includes passing the stream through an ambient or chilled temperature condenser followed by an optional gas / solid separator, and one or more gas scrubbers prior to feeding to the oxidizer.

The invention relates to the technical field of membrane separation, and discloses a high-protein milk concentration process based on a membrane filtration technology, the process adopts an electric response membrane grafted with an electric response polymer brush on the surface, and an electric control zymogen modified by genetic engineering is added into milk feed liquid to be treated. The zymogen is modified with an electric field responsive anchoring group and an electric signal activated ferrocene protecting group. In the filtering stage, a first electric field is applied to stretch the polymer brush, so that anti-pollution filtering is realized; and in the cleaning stage, switching to a second electric field to enable the polymer brush to shrink and drive the zymogen to be anchored on the surface of the membrane, and applying an activation pulse to trigger the activity of the zymogen so as to degrade pollutants in situ. On the premise of not interrupting production, not adding chemical cleaning agents and not damaging target product protein, milk concentration is efficiently and continuously carried out, and long-term stable high permeation flux is maintained.

The present invention is directed to a system and method for a research instrument device. A method of purifying extracellular vesicles (“EVs”) is disclosed wherein a biological sample including EVs is obtained and applied to a fluidic cell in an array of fluidic cells of a multistage dielectrophoretic (“DEP”) filter system. The DEP filter system comprises a semiconductor array comprising a plurality of electrodes. The DEP filter system is disposed within a fluidics system; wherein the fluidics system is configured to move at least one fluid across the semiconductor array of the DEP filter system.

An exemplary method and system is disclosed that facilitate the integration of multiplexed single-cell impedance cytometry in a high throughput format, which can be deployed upstream from microfluidic sample preparation and / or downstream to microfluidic cell separation. In exemplary method and system may employ impedance-based quantification of cell electrophysiology on the same microfluidic chip (i.e., “on-chip”) to provide distinguishing phenotypic information on the sample, without the need for additional sample handling, preparation or dilution steps as would be needed for other flow cytometry techniques.

Provided are microfluidic devices. The devices comprise a chamber configured to contain a liquid medium. The devices further comprise a substrate comprising: i) a photoconductive layer forming a first wall of the chamber; and ii) first and second electrodes disposed in a planar arrangement within or adjacent to the photoconductive layer. The devices further comprise a microfluidic inlet channel connected to the chamber, and a microfluidic droplet generator connected to the chamber. Systems comprising the microfluidic devices of the present disclosure are also provided. The systems comprise a light pattern generator optically coupled to the photoconductive layer; and a voltage source electrically coupled to the first and second electrodes. Methods of engulfing a particle into a droplet implemented using a system of the present disclosure are also provided.

An electrode apparatus and method remove a polarized molecule in a fluid. In another aspect, a non-uniform electric field is created between an anode and a cathode, the fluid flows within a gap between the cathode and the anode, and the polarized molecule is driven by an electrostatic force to and adsorbed on the anode without experiencing a chemical reaction.

A dielectrophoretic detection device including a chip, with a flow channel having at least one inlet and one outlet, and at least a detection area configured to detect analytes trapped on functionalised beads flowing within the flow channel, first and second electrode assemblies shaped as rows of parallel pillars extending a the height of the flow channel, and configured to generate under electric tension an electric field to form an electrical barrier, and preventing the beads to cross the barrier and drawing the beads to the detection area by dielectrophoretic forces where they are clustered and concentrated. The device may be provided with multiple rows of parallel pillars of electrode assemblies extending over the height of the flow channel, forming multiple concentration lines. The flow channel may be provided with further rows of parallel pillars of electrode assemblies crossing the flow channel in a transverse direction, forming further incubation lines.

The invention provides a micro-fluidic chip and an intelligent particle sorting system and equipment. The micro-fluidic chip comprises a channel layer and a substrate layer which are arranged from top to bottom, the channel layer comprises an inlet flow channel, a shunting flow channel, a sorting flow channel, an outlet flow channel and an electrode flow channel; one end of the inlet runner is connected with the sample inlet and the sheath fluid inlet, and the other end of the inlet runner is connected with the shunt runner; a sample and sheath fluid flow through the inlet flow channel, flow into the shunting flow channel and then flow through the sorting channel for sample particle sorting, and the sorted sample particles flow out through the outlet flow channel; the electrode flow channel enables the side wall of the sorting flow channel to form a side wall electrode, and the side wall electrode enables the sample to deflect due to dielectrophoretic force when flowing through the sorting channel so as to sort sample particles. According to the invention, the particles can be sorted efficiently and intelligently in a high-throughput manner.

The present disclosure describes a field flow fractionator including (a) a top plate assembly including a top electrically conductive electrode, (b) an o-ring, (c) an electrically insulating frit, (d) an electrically insulating spacer between a bottom surface of the top electrode and the o-ring and the frit, (e) a membrane between the spacer and the frit, and (f) a bottom plate assembly including a bottom electrically conductive electrode.

The invention discloses a mineral electrokinetic potential-based ultra-micro-fine particle sorting device and sorting system, and belongs to the technical field of mineral sorting. The technical problem that the separation effect of ultra-fine particle minerals is poor by adopting a traditional separation mode is solved. The ultra-fine particle sorting device comprises a sorting unit and a transmission unit, the sorting unit comprises a pair of parallel electrode plates, and a sorting region is formed by a region between a positive electrode plate and a negative electrode plate in the parallel electrode plates; the transmission unit is arranged on the outer surfaces of the positive electrode plate and the negative electrode plate; and concentrate and tailings are obtained after the ultra-fine particle minerals are sorted through the sorting area and discharged out of the sorting unit through the transmission unit. According to the invention, efficient separation of ultra-fine particle minerals is realized.

A method for detecting a nanoplastic using a vertical nanogap electrode and a Raman spectroscopic device, includes, in a state where a vertical nanogap electrode is provided in aquatic environment in which a nanoplastic exists, forming a nanoplastic aggregate having a size of 1 μm or more by applying an alternating voltage of a specific frequency to the vertical nanogap electrode, and collecting and concentrating the nanoplastic in a collector of the vertical nanogap electrode, and performing Raman spectroscopy on the nanoplastic aggregate concentrated in the collector of the vertical nanogap electrode to detect the nanoplastic constituting the nanoplastic aggregate.

The utility model belongs to the technical field of electrostatic oil purifiers, and particularly relates to a pressure-boosting and pressure-reducing electrostatic oil purifier which comprises an oil purifier body, a second mounting groove is formed in the side surface of the oil purifier body, a second limiting column is fixedly connected to the inner bottom of the second mounting groove, and a second compression spring and a sliding plate are arranged outside the second limiting column in a sleeving mode. A connecting plate is rotatably connected to the interior of the sliding plate, a limiting plate is fixedly connected to the side surface of the connecting plate, a baffle is fixedly connected to the side surface of the connecting plate, an operation plate is rotatably connected to the circumferential surface of the first fixing column, a limiting frame is fixedly connected to the inner side wall of the oil purifier body, and an electrostatic oil purifying barrel is fixedly connected to the inner bottom of the oil purifier body; the top of the operation plate is fixedly connected with a pressure pointer. According to the oil purifier, the operation plate and the baffle are arranged, so that the interior of the oil purifier main body is convenient to overhaul; and by arranging a limiting ring, a connecting column, a first compression spring and a limiting rod, the mounting stability of the operation panel is improved.

Provided are a nanoparticle generating device and a desalination device using same, the nanoparticle generating device comprising: a raw material supply unit that provides seawater or wastewater; a gas supply unit that provides a gas; an electrode positioned opposite to the raw material supply unit; a voltage application unit that applies a voltage between a needle portion of the raw material supply unit and the electrode to form an electric field in a space therebetween; and a spray nozzle which has one side connected to the raw material supply unit and the gas supply unit, and which uses the flow of the gas, provided via the gas supply unit, to mix the gas with the seawater or wastewater and spray same outward from the other side. The needle portion of the raw material supply unit is electrically grounded, and the seawater or wastewater charged by the grounding state is provided to the spray nozzle. The seawater or wastewater, charged with electrostatically induced charges, is mixed with the gas to generate an electrostatic explosion and nanoparticulated to produce fine particles, and the produced fine particles are sprayed outward.

A filtration device according to the present invention includes: a filter chamber 3 to which slurry 40 containing a particle and a liquid having different electric charges is supplied through a supply line; a first electrode group 10A or a second electrode group 10B including cathode electrodes 11, 12 or anode electrodes 13, 14 provided on both side surfaces of the filter chamber to face each other and configured to separate the particle 42 and the liquid 41 in the slurry 40 into separated substances by an electric field action; and a first discharge chamber 4 and a second discharge chamber 5 provided for the first electrode group 10A and the second electrode group 10B to face the filter chamber 3 and configured to allow discharging of the separated substances.

The invention relates to a system for characterizing, separating, multiplying and / or cryopreserved at least one biological cell, comprising at least one device consisting of at least one biological cell and a dielectric support, at least one container with an open mouth region and a bottom region, wherein the device is arranged in the container, wherein the bottom region has at least one first electrode and at least one second electrode for generating an alternating electric field within the container, wherein the dielectric support exhibits a weaker negative dielectrophoretic force in an alternating electric field with a first alternating frequency than in an alternating electric field with a second alternating frequency that is higher than the first alternating frequency.and exhibits, at least in the alternating electric field with the second frequency, a stronger negative dielectrophoretic force than an absolute value of a dielectrophoretic force exerted by a single biological cell in the alternating electric field with the second frequency.

The present invention relates to a water purifier provided with a composite filter, and more particularly, to a water purifier provided with a composite filter, which enables the implementation of an additional function using an external treatment member in a process in which raw water passes through a composite filter as the water purifier cannot only receive raw water, discharge second purified water, receive externally treated water, discharge third purified water, but also discharge residential water.

The microfluidic chip and the microfluidic system of the present invention provides a unique integration of a microfluidic chip and a label-free quantification process. The microfluidic chip uses well arrays and dielectrophoresis (DEP) to capture a polarizable agent in a well. Once the polarizable agents have been captured, non-faradaic electrochemical impedance spectroscopy (nF-EIS) measurements can be performed to quantify the polarizable agent.

A system, apparatus and method for magnetically separating a fluid flow passing through a pipeline are provided. A magnetic separator assembly having a plurality of elongate magnetic members is provided. Each magnetic member can have a first end and a second end. A cleaner plate can be provided that can move along the magnetic members. After the magnetic separator assembly is used to collect magnetic particles from a fluid flow in a pipeline, the magnetic separator assembly can be cleaned by sliding the cleaning plate along the magnetic members.

A chemical liquid purification apparatus for semiconductor manufacturing includes a first tank configured to store a chemical liquid for semiconductor manufacturing containing impurities; a first line configured to supply the chemical liquid for semiconductor manufacturing to the first tank; a first electrode and a second electrode provided inside the first tank; a DC power supply connected to each of the first electrode and the second electrode; a second line configured to supply the chemical liquid for semiconductor manufacturing processed in the first tank to outside of the first tank; and a first centrifuge which selectively separates the impurities inside the chemical liquid for semiconductor manufacturing moving along the second line.

The invention provides a particle containing device, non-contact type particle processing equipment and a light sensing structure of the non-contact type particle processing equipment. The particle accommodating device is used for accommodating a liquid specimen and comprises a plurality of particles. The accommodating device comprises a light sensing structure and a matching structure spaced from the light sensing structure. The light sensing structure comprises a substrate, an electrode layer and a photoelectric layer which are formed on the substrate, and an insulator formed on the photoelectric layer. The insulator includes a charge-type track protruding from the photoelectric layer. The optoelectronic layer is operable to generate a plurality of charges concentrated on the charge-type track such that the charge density of the charge-type track is greater than the charge density of the outer surface of the optoelectronic layer, so that the charge-type track positions at least one of the particles thereon through electrostatic adsorption. Therefore, the particles are moved and positioned in an electrostatic adsorption manner, so that the positioning of the particles is accurately realized.

A particle accommodating device (1) is configured to accommodate a liquid specimen (S) having a plurality of particles (P) therein. The particle accommodating device (1) includes a light sensing structure (11) and a mating structure (12) spaced apart from the light sensing structure (11). The light sensing structure (11) includes a substrate, an electrode layer formed on the substrate, a photoelectric layer (113) formed on the substrate, and an insulating body (114) that is formed on the photoelectric layer (113). The insulating body (114) includes a charge track (T). The photoelectric layer (113) is operable to generate charges concentrated on the charge track (T), such that a density of the charges concentrated on the charge track (T) is greater than a density of the charges on an outer surface of the photoelectric layer (113) for enabling at least one of the particles (P) to be moved and held onto the charge track (T) through electrostatic adsorption.

The utility model relates to the field of oil product processing equipment, and discloses anti-pollution electrostatic adsorption equipment for industrial oil processing, which comprises a tank body, and a partition plate is fixedly arranged in the tank body and divides the tank body into a filter cavity and an adsorption cavity; a filter screen is fixedly arranged in the filter cavity, and a rotating shaft is vertically arranged in the filter cavity; the bottom end of the rotating shaft is coaxially and rotatably connected with the filter screen, and the top end of the rotating shaft is coaxially and rotatably connected with the tank body; a scraping plate is fixedly arranged on the rotating shaft in the radial direction, and a brush is fixedly arranged at the bottom of the scraping plate and slidably abuts against the filter screen; a push plate is slidably mounted at the bottom of the scraper and is in sliding contact with the filter screen; a transmission assembly is arranged between the scraping plate and the tank body and is in transmission connection with the push plate to drive the push plate to slide in the radial direction of the rotating shaft; a collecting box for collecting particulate mechanical impurities on the filter screen is fixedly arranged on the tank body, and the collecting box is communicated with the filter cavity. The hairbrush can prevent filter holes in the filter screen from being blocked, and meanwhile, the push plate can push particulate mechanical impurities away from the filter screen.