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WO2000000293A9 |
The invention relates to an electrode arrangement in a microsystem which is installed in a channel for dielectrophoretically manipulating particles in a suspension liquid. At least one microelectrode is located on a side wall of the chan...
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WO/2000/000292A1 |
The invention relates to an electrode arrangement (10) in a microsystem which is installed in a channel (21) for dielectrophoretically manipulating particles (30) in a suspension liquid. At least one electrode (11, 11a, 11b, 12) is locat...
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WO/2000/000816A1 |
The invention relates to a method and a device for manipulating particles in a fluidic microsystem (15). The particles are moved in a predetermined reference direction in a suspension liquid. According to the invention, the microsystem (...
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WO/1999/063332A1 |
Provided is an apparatus for separating, in a medium, a component from a composition comprising: an array of three or more electrodes (1) arrayed along a pathway (2) along which molecules of the composition are transported; and a power s...
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WO/1999/062611A1 |
A compact device (50) for coalescing finely dispersed droplets of a conductive fluid emulsified in a stream of nonconductive fluid by the use of a high intensity electric field acting on the emulsion (51) as it flows through a narrow flo...
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WO/1999/062622A1 |
A method for concentrating and/or positioning and/or separating particles or cells comprises placing a liquid medium containing the particles and/or cells over a surface having an electrode array associated with the surface, applying an ...
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WO/1999/058245A1 |
A microfluidic device adapted such that the flow of fluids within the device is controlled by different surfaces of the device having different surface characteristics. Preferably the device comprises a substrate not formed from a hydrat...
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WO/1999/052640A1 |
The invention relates to a method and a device for manipulating microparticles in a fluid passing through one first channel or several first channels as a flow. One or more microparticles (14) are subjected to a change of direction under...
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WO/1999/047255A1 |
A sample-processing device (150) comprises a unitary body (152), preferably a molded polymeric part, having formed therein a reaction chamber (154) for chemically reacting a sample, a separation region (158) for separating components of ...
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WO/1999/045377A1 |
The present invention is directed to a method for controlling electroosmotic flow by treating a surface with an organosilane having a single leaving group and optionally a ceramic oxide. This protective coating allows increased control a...
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WO/1999/043617A1 |
An electrocoagulation treatment device includes a plurality of spaced reaction plates disposed within a reaction chamber. A voltage is applied to selected reaction plates to create an electrical field within the electrocoagulation chambe...
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WO/1999/038874A2 |
An electrophoretic method for purifying a nucleic acid sample is disclosed. The method generally comprises the steps of (1) providing a nucleic acid sample comprising a desired nucleic acid and one more contaminants, (2) providing an ele...
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WO/1999/038612A1 |
The present invention comprises devices and methods for performing channel-less separation of cell particles by dielectrophoresis, DC high voltage-pulsed electronic lysis of separated cells, separation of desired components from crude mi...
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WO/1999/033550A1 |
An electrophoresis apparatus for the simultaneous electrophoretic separation of a plurality of component mixtures comprises, includes a disposable tray defining a plurality of substantially parallel troughs. Each trough is shaped to reta...
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WO/1999/033548A1 |
The invention relates to an exhaust-gas cleaning device of an internal combustion engine with more than one cylinder, comprising an NOx storage catalytic converter positioned downstream from the internal combustion engine. The exhaust ga...
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WO/1999/017883A1 |
Methods and apparatus implementing a technique for electrostatically transporting a particle (130) through a medium. In general, one implementation includes a substrate (130); a first insulation layer (120) formed on the substrate (130);...
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WO/1999/003591A1 |
The invention relates to installations having metallic reaction vessels for separating substances from electrically nonconductive liquids, in particular vegetable oils, by electrostatic separation. In accordance with the invention, an el...
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WO/1998/053895A1 |
Apparatus and method for separating a charged substance from a conductive fluid in which the conductive fluid is transported to a charged substance separation assembly (8) where an electrostatic field is imposed to separate the charged s...
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WO/1998/028405A1 |
An electrode array for field cages, specially in microsystems, comprising multiple electrodes in which each terminal area can be subjected to an electric potential via a supply line area. The terminal area is designed to form a respectiv...
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WO/1998/023379A1 |
The invention concerns a method for separating particles or molecules whereby these particles or molecules are introduced in a separating medium and a moving force is applied to them in said medium. The method is characterised in that th...
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WO/1998/013689A1 |
In order to isoelectrically separate particles with a pH-dependent net charge, the particles are exposed in a guiding liquid to electric field forces. The pH value of the guiding liquid is set in such a way that at least one predetermine...
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WO/1998/010869A1 |
Particles are separated according to their dielectrophoretic characteristics and electrorotation characteristics by the use of a travelling wave separation in which they flow from a departure point at an inlet (18) towards at least two d...
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WO/1998/010277A1 |
Systems and methods for the electronic sample preparation of biological materials utilize the differential charge-to-mass ratio and/or the differential affinity of sample constituents to separation materials for sample preparation. An in...
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WO/1998/010267A1 |
A micro flow system is provided for separating particles, comprising a microfabricated member having a flow channel (5) defined therein for guiding a flow of a fluid containing the particles through the flow channel, first inlet means (2...
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WO/1998/004355A1 |
The behaviour of particles is tested by placing a suspension of the particles in a chamber in which an electrode array is arranged to generate a spectrum of different frequency dielectrophoretic fields. The behaviour of the particles at ...
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WO/1998/002226A1 |
The present invention relates to a device for purifying dielectric liquids, wherein said device comprises a body (1) having an electrostatic filter (2) mounted therein. This filter consists of a set of flat electrodes which are separated...
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WO/1998/002399A1 |
The invention concerns a method for cleaning and enriching first molecules (9) carrying charged particles such as proteins, nucleic acids and the like, comprising the following steps: a) preparing a solution containing the first molecule...
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WO/1997/047969A1 |
A fine substance hold-back carrier, a suspension system for the same, a fine substance manipulating apparatus, and a method of controlling the position of a fine substance, which are used to carry out the examination of various kinds of ...
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WO/1997/040078A1 |
Thermoreversible hydrogels comprising nonionic, uncrosslinked copolymers, and methods of their use in electrophoresis, are provided. The subject copolymers comprise polyacrylamide backbones, where a portion of the acrylamide monomeric un...
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WO/1997/034689A1 |
Apparatus is described for carrying out chemical, physical or physico-chemical reactions between particles suspended in a liquid medium. The liquid medium is present in channels (1-8, 10, 40, 41, 42, 52, 72) on a generally planar substra...
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WO/1997/031026A1 |
A polyhydroxy polymer substituted with covalently linked alkene groups, characterized in that the alkene groups are styryl ether groups. A gel obtained by polymerisation of a styryl ether substituted polyhydroxy polymer. A surface that h...
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WO/1997/027933A1 |
The present disclosure is directed to a novel apparatus and novel methods for the separation, characterization, and manipulation of matter. The invention combines the use of frequency-dependent dielectric and conductive properties of par...
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WO/1997/026288A1 |
Thermoreversible hydrogels comprising non-ionic, linear copolymers, and methods of their use in electrophoresis, are provided. The subject copolymers comprise polyacrylamide backbones, where a portion of the acrylamide monomeric units co...
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WO/1997/026071A1 |
The use of a gel produced by polymerization of a dextran derivative which exhibits groups that contain an alkene structure, for separating nucleic acid by electrophoresis.
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WO/1997/020633A1 |
An apparatus for separating different components of a mixture of material includes a separation chamber having a structure definin g confronting electrode surfaces (10, 12) having a gap (15) between the confronting electrode surfaces and...
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WO/1997/020210A1 |
A process and control device is disclosed for the location-selective and/or type-selective control of the position and/or position modification of suspended particles in a multi-electrode system using polarisation forces induced in the p...
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WO/1996/032524A1 |
A electrokinetic system (10) and method are provided for removing charged species from a sample (9) in which said charged species is commingled with at least one radionuclide. The apparatus comprises an anode compartment (11) comprising ...
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WO/1996/031282A1 |
Travelling wave particle separation apparatus is provided having a flat spiral of electrodes (1, 2, 3, 4) or a helix of similar electrodes on a cylindrical former. Only four electrical connections need to be made.
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WO/1996/025998A1 |
Methods and apparatus for the concentration of microorganisms, particularly bacteria, from sample material, particularly from complex sample material and more particularly from foodstuff derived materials, comprise use of desalting means...
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WO/1996/024438A1 |
A device, of which one embodiment is shown diagrammatically in the figure, is provided for purifying organic liquids of plant, animal or synthetic origin that have been contaminated by particulate impurities, colloidal impurities or impu...
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WO/1996/012564A1 |
A method for treating petroleum with anaerobic microorganisms acting as biocatalysts that can remove sulfur atoms from hydrocarbon molecules, under anaerobic conditions, and then convert the sulfur atoms to hydrogen sulfide. Because the ...
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WO/1996/004999A2 |
The invention relates to a wafer rinsing system for rinsing chemicals and particles off of wafers without introducing contaminants. The system reduces the particle count on wafers by filtering the water and the gas used during rinsing at...
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WO/1995/026827A2 |
Apparatus and method for removing a charged substance from a condcutive fluid by imposing an electrostatic field on the conductive fluid, the charged substance being drawn to and retained by a charged substance receiving member having a ...
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WO/1995/026829A1 |
The invention relates to a process and a device for separating components, especially species which are dissolved molecularly, ionogenously or colloidally or are micro-organisms, from liquid homogenous or heterogeneous systems. According...
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WO/1995/019227A1 |
The present invention are dielectric black particles (22) for use in electrophoretic images displays (10), electrostatic toner or the like, and the corresponding method of manufacturing the same. The present invention black particles (22...
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WO/1995/017258A1 |
In order to prevent or to selectively increase particle adsorption or adhesion on flexible or rigid materials, extremely miniaturised (in the sub-micrometric range) planar electrode strips (22; 42, 44; 52) are applied on a surface (21; 4...
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WO/1995/016358A1 |
A decaffeinating device (2) includes a receiver (4) for the caffeine-containing liquid, a conduit (6), and a reservoir (8) for temporarily receiving the caffeine-containing liquid. There is also provided a caffeine separator (10) which i...
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WO/1995/005231A1 |
An electrostatic filter (10) utilizes two separate filter cartridges (42, 44) in a parallel flow configuration with respect to incoming dielectric fluid containing particulates. Each cartridge is connected to opposite sides of a high vol...
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WO/1994/022583A1 |
The invention relates to a separator, which is particularly useful for separating cellular matter. The separator utilises the phenomenon known as dielectrophoresis (DEP). A DEP force effects a particle suspended in a medium. The particle...
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WO/1994/016821A1 |
Particles are subjected to travelling wave field migration (TWFM) to migrate the particles over an array of microelectrodes. Altered particles are produced by treating original particles in such a way so as to alter their TWFM characteri...
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