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Chemistry: Electrical And Wave Energy > Non-distilling Bottoms Treatment > Electrophoresis Or Electro-osmosis Processes And Electrolyte Compositions Therefor When Not Provided For Elsewhere Electrophoresis Or Electro-osmosis Processes And Electrolyte Compositions Therefor When Not Provided For ElsewhereElectrophoresis Or Electro-osmosis Processes And Electrolyte Compositions Therefor When Not Provided For Elsewhere patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.01/31/08 - 20080023330 - Device for manipulation of packets in micro-containers, in particular in microchannels The present invention concerns a microfluidic device (1) for performing physical, chemical or biological treatment to at least one packet without contamination. ... 01/10/08 - 20080006533 - Prevention of precipitate blockage in microfluidic channels The present invention provides novel microfluidic devices and methods for preventing/ameliorating formation of precipitate blockages in microfluidic devices. In particular, the devices and methods of the invention utilize microchannels of specific cross-sectional configuration and of specific arrangement as well as application of AC current orthogonal to the direction of fluid ... 01/03/08 - 20080000772 - Induced-charge electro-osmotic microfluidic devices This invention provides devices and apparatuses comprising the same, for efficient pumping and/or mixing of relatively small volumes of fluid. Such devices utilize nonlinear electrokinetics as a primary mechanism for driving fluid flow. Methods of cellular analysis and high-throughput, multi-step product formation using devices of this invention are described. ... 11/22/07 - 20070267292 - Bridges for electroosmotic flow systems In accordance with the present invention, stable electroosmotic flow systems and methods for designing the same are disclosed. The invention provides electroosmotic flow systems comprising electroosmotic flow elements, including bridge elements, that have matching flux ratios, i.e., when two or more elements of an electroosmotic flow system are in fluidic ... 10/18/07 - 20070240988 - Method for controlling concentration of electrophoresis solution of carbon nano tube A method for controlling concentration of electrophoresis solution of field emission display cathode substrate carbon nano tubes includes: (1) preparing an index electrophoresis solution and setting the electrophoresis conditions, wherein the concentration is 0.025% for magnesium nitrate and 0.0125% for the carbon nano tube of ethanol as an index solution; ... 10/11/07 - 20070235333 - Patterned chip with adjustable surface and method for manufacturing the same The invention is to provide a method for fabricating a patterned chip with adjustable surface including of a basic layer, an insulating layer and a layer of biomolecules or cells. The method comprises of the following steps: pre-patterning a basic layer by photolithography; coating the pre-patterned basic layer with an ... 08/16/07 - 20070187243 - Planar electrochromatography/thin layer chromatography separations systems A method for separating a sample comprising a plurality of compounds includes loading a sample onto a planar stationary phase, said sample comprising a plurality of compounds to be separated; and, while retaining the sample on the planar stationary phase, subjecting the sample to planar electrochromatographic separation in a selected ... 08/16/07 - 20070187242 - Electro-optical modulating display devices The present invention relates to electro-optical modulating display devices and, specifically, to such displays containing oil-in-oil emulsions as the imaging material. Also disclosed is a method of forming an image by movement of liquid droplets through a continuous liquid phase, the method comprising providing an array of pixel elements, each ... 08/09/07 - 20070181427 - Procedure for the fractionation of proteins by using sequential ion exchange and hydrophobic interaction chromatography as prefractionation steps before analysis by two dimensional electrophoresis After the sequencing of the human genome, great interest has developed in trying to discern the complementary proteome of humans and other species. The present disclosure provides devices, systems, and methods for proteomic fractionation that may increase the number of protein spots visualized by 2DE analysis, and may allow enrichment ... 08/02/07 - 20070175755 - Dynamic equilibrium separation, concentration, and mixing apparatus and methods Particles are separated, concentrated, or mixed within a fluid by means of a fluid-containing cell having a longitudinal axis, a cross-sectional area generally perpendicular to the longitudinal axis, and at least one particle motivating force directionally interacting with at least one recurrent circulating fluid flow generally aligned with the longitudinal ... 07/26/07 - 20070170059 - Method for controlling the contact angle of a droplet in electrowetting and an apparatus using the droplet formed thereby A method for controlling the hydrophilic droplet using the electrowetting principle is disclosed. More specifically, the present invention provides a method for increasing the change of the contact angle in the interface that is formed between the hydrophilic droplet and the nonpolar fluid by adding a constant concentration of two-element ... 07/12/07 - 20070158192 - Apparatus and method for coupling microfluidic systems with a mass spectrometer utilizing rapid voltage switching The invention relates to an apparatus for coupling microfluidic systems with electrospray ionization mass spectrometry utilizing a hydrodynamic flow. The invention also relates to a method of preventing a sample in a main channel of a microfluidic device from migrating down either a first side channel or a second side ... 05/17/07 - 20070108054 - Devices with a passageway for electroosmotic flow and method of making same A device has a passageway (14) for electroosmotic flow therealong. The passageway (14) is bordered by an internal surface (12). A porous plug (16,18) is located in the passageway (14) so that there are no gaps between the porous plug (16, 18) and the internal surface (12). The plug (16,18) ... 05/03/07 - 20070095667 - Optoelectronic separation of biomolecules The present teachings relate to systems and methods for separation of substances such as cells, nucleic acids, and carbon nanotubes. The substances are combined with a separation medium in a liquid sample cavity, for example a microchannel, and transit through the separation by optically activated dielectrophoretic forces. The substances are ... 05/03/07 - 20070095666 - Surface modification in a manipulation chamber A device for manipulating biological material, the device including at least one electrode and a photoconductive material configured to receive the biological material; and a light source configured to illuminate the photoconductive material so as to modulate an electric field, wherein the electric field is configured to manipulate the biological ... 05/03/07 - 20070095665 - Method for enhancing life span and adhesion of electrophoresis deposited electron emission source A method for enhancing the adhesion and life span of the electrophoresis deposited electron emission source. The method can form a siloxane film on the surface of carbon nanotubes during a one-time electrophoresis deposition process. The siloxane film is then sintered to form a silicon dioxide film on the surface ... 04/12/07 - 20070080062 - Coated metal structures and methods of making and using thereof Disclosed herein are methods and devices for applying two or more mobilization fields in a microchannel using a multifunctional structure and manipulating particles and fluids based on more than one characteristic. Specifically, a fluidic channel comprising at least one metal structure having a coat comprising a conductive material, an insulative ... 03/29/07 - 20070068812 - Microfluidic device for electrochemically regulating the ph of a fluid therein using semiconductor doped with impurity and method of regulating the ph of a fluid in a microfluidic device using the same Provided is a microfluidic device for electrochemically regulating the pH of a fluid comprising: a cathode substrate; an anode substrate facing the cathode substrate and forming a reaction chamber with the cathode substrate; and a nonconductor which forms a boundary between the portions of the cathode substrate and the anode ... 03/22/07 - 20070062813 - Electrophoresis standards, methods and kits Electrophoresis Compositions, methods and kits useful for, among other things, detecting, quantifying and/or characterizing analytes are provided. The compositions are useful as electrophoresis standards for determine the isoelectric point and molecular weight of an analyte. The electrophoresis standards generally comprise at least one label moiety and one or more reactive ... 02/15/07 - 20070034513 - Electrochemical deblocking solution for electrochemical oligomer synthesis on an electrode array There is disclosed an electrochemical deblocking solution for use on an electrode microarray. There is further disclosed a method for electrochemical synthesis on an electrode array using the electrochemical deblocking solution. The solution and method are for removing acid-labile protecting groups for synthesis of oligonucleotides, peptides, small molecules, or polymers ... 02/08/07 - 20070029198 - Thermoresponsive sensor comprising a polymer solution Methods and apparatus for measuring and/or controlling the temperature on the surface or inside of microchips are provided, including using thermally responsive polymers. ... 02/08/07 - 20070029197 - Downhole uses of electroactive polymers A downhole actuator comprising a electroactive polymer, an advancement device, and an electrical source for stimulating the electroactive polymer. The advancement device is motivated by stimulation of the electroactive polymer. The electroactive polymer can be stimulated by the electrical source. The embodiments of the actuator can be utilized in subterranean ... 01/25/07 - 20070017808 - Linear valve-coupled two-dimensional separation device and separation matrix and method A two-dimensional separation apparatus includes first and second modules operating respectively to separate a sample amount in a first dimension and a second dimension. A valve structure controllably isolates the first separation module from the second separation module. ... 01/11/07 - 20070007137 - Ionic conducting gels, preparation method thereof and use of same A method of preparing an ionic conducting gel in solid form, known as ionogel. The method includes a step of mixing an ionic liquid with at least one molecular precursor containing at least one hydrolyzable group, if necessary in the presence of an acid, such as a carboxylic acid. The ... 11/23/06 - 20060260942 - Electrocapturing flow cell A flow cell for electrophoretically-assisted capturing analytes from a flow. The flow cell includes a specimen chamber, a first membrane, a second membrane, a first electrode chamber, and a second electrode chamber. The specimen chamber may have a sample inlet and a sample outlet. A first portion of the first ... 11/23/06 - 20060260941 - Ruggedized apparatus for analysis of nucleic acid and proteins The invention provides methods and systems for ruggedizing a nucleic acid analyzing apparatus. The ruggedized apparatus can be used reliably and effectively in uncontrolled environments, such as, for example at a crime scene to collect and analyze forensic data, as well as in semi-controlled environments, such as, for example at ... 11/16/06 - 20060254913 - Orientation independent electroosmotic pump According to some embodiments, a method, system, and apparatus for providing an orientation independent electroosmotic pump. In some embodiments, the method includes an anode and a cathode at different electrical potentials, the anode and cathode are each sealed in an ion-exchange membrane and at least partially immersed in an electrolyte ... 11/16/06 - 20060254912 - System and method for treating biological tissue usiing curret electrical field The present invention relates to a method for treating biological organic tissue, particularly plant tissue, by applying a direct current preferably of low voltage electrical field for short duration, with minimal detrimental influence on the treated tissue and to further beneficial uses of the residual tissue mass. The system and ... 10/19/06 - 20060231399 - Single-wall carbon nanotube compositions The invention relates to a process for sorting and separating a mixture of (n, m) type single-wall carbon nanotubes according to (n, m) type. A mixture of (n, m) type single-wall carbon nanotubes is suspended such that the single-wall carbon nanotubes are individually dispersed. The nanotube suspension can be done ... 10/19/06 - 20060231398 - Microfluidic method and device for transferring mass between two immiscible phases A method of transferring mass of at least one solute between a liquid first phase and a fluid second phase that is immiscible with the first phase, the method comprising moving at least one droplet of said liquid first phase in a microfluidic device by using electric-type forces (electrowetting or ... 10/05/06 - 20060219556 - Vortex-stabilized electrophoretic devices and methods A vortex-stabilized electrophoretic processor comprises an annular processing chamber at least partly defined by concentric first and second processing chamber surfaces. At least one of the processing chamber surfaces is rotatable relative to the other processing chamber surface. The electrophoretic processor further comprises an electric field generator operative to be ... 08/03/06 - 20060169586 - Production line and treatment for organic product A fluid from a fermentation process or the like is passed or circulated through chambers of a bipolar membrane electrodialysis unit to separate an ionizable organic acid stream and at least one co-ion or residual stream. The organic acid stream is preferably concentrated (e.g., by recirculation, dewatering or both), and ... 07/27/06 - 20060163066 - Cerium dioxide-based electrode-electrolyte pair (variants), method for the production thereof (variants) and organogel This invention relates to the field of electric power generation by direct transformation of the chemical energy of gaseous fuel to electric power by means of high-temperature solid oxide fuel cells. The invention can be used for the fabrication of miniaturized thin filmed oxygen sensors, in electrochemical devices for oxygen ... 06/29/06 - 20060137982 - Polymers for separation of biomolecules by capillary electrophoresis The invention provides uncharged water-soluble silica-adsorbing polymers for suppressing electroendoosmotic flow and to reduce analyte-wall interactions in capillary electrophoresis. In one aspect of the invention, one or more of such polymers are employed as components of a separation medium for the separation of biomolecules, such as polynucleotides, polysaccharides, proteins, and ... 06/29/06 - 20060137981 - Nanoelectrode device for chemical analysis A device is provided with tunable affinity for molecules such as in particular macromlecues including proteins and peptides. The device comprises a substrate with a surface; a plurality of locally substantially parallel electrodes along said surface, wherein adjacent electrodes are separated by a distance in the range of about 0.1 ... 06/22/06 - 20060131172 - Method of vertically aligning carbon nanotubes using electrophoresis A method of vertically aligning carbon nanotubes, whereby carbon nanotubes are grown on a substrate on which a catalyst metallic layer is formed, the grown carbon nanotubes are separated from the substrate in a bundle shape, the separated carbon nanotube bundles is put in an electrolyte having a charger, the ... 06/15/06 - 20060124459 - Devices and methods for focusing analytes in an electric field gradient ii Devices are provided for separating and focusing analytes, comprising a separation chamber and electrodes separated from the separation chamber by a membrane. The electrodes are operative to generate an electric field in the separation chamber. Molecular sieve in the separation chamber is operative to shift the location at which a ... 06/08/06 - 20060118417 - Nucleic acid purification method using hydrogen bonding and electric field Provided is a method of purifying nucleic acids using hydrogen bonding and an electric field, including: bringing a sample containing target nucleic acids into contact with an electrode coated with a material capable of forming hydrogen bonds with the target nucleic acids; applying a positive voltage to the electrode to ... 06/01/06 - 20060113189 - Method for separating substances An objective of the present invention is to provide electrophoretic separation methods and devices that enable the various features of a substrate surface that comes in contact with an electrophoresis medium to be controlled. The present invention provides methods for electrophoresing substances, which comprises the steps of: (a) adding a ... 05/25/06 - 20060108224 - Rapid flow fractionation of particles combining liquid and particulate dielectrophoresis Rapid, size-based, deposition of particles from liquid suspension is accomplished using a nonuniform electric field created by coplanar microelectrode strips patterned on an insulating substrate. The scheme uses the dielectrophoretic force both to distribute aqueous liquid containing particles and, simultaneously, to separate the particles. Size-based separation is found within nanoliter ... 05/18/06 - 20060102477 - Electrowetting dispensing devices and related methods A method for dispensing liquid for use in biological analysis may comprise positioning liquid to be dispensed via electrowetting. The positioning may comprise aligning the liquid with a plurality of predetermined locations. The method may further comprise dispensing the aligned liquid from the plurality of predetermined locations through a plurality ... 05/04/06 - 20060091011 - Automated parallel capillary electrophoresis system with hydrodynamic sample injection An automated capillary zone electrophoretic system is disclosed. The system employs a capillary cartridge having a plurality of capillary tubes. The cartridge has a first array of capillary ends projecting from one side of a plate. The first array of capillary ends are spaced apart in substantially the same manner ... 04/13/06 - 20060076237 - Coated hydrophilic membrances for electrophoresis applications The present invention is directed to an electrophoresis gel plate for analysing or separating macromolecules in a mixture comprising a polymerised gel matrix supported by a hydrophilic microporous membrane. ... 04/06/06 - 20060070880 - Methods and apparatus for manipulating separation media Methods and apparatus for manipulating separation media in the context of filling one or more capillaries with a separation medium for electrophoresis. A polymer-displacement pump system and method for reciprocating a pump piston in a first direction to draw fresh fluid into a chamber, and reciprocating the pump piston in ... 04/06/06 - 20060070879 - Method and apparatus for programmable fluidic processing A method and apparatus for microfluidic processing by programmably manipulating a packet. A material is introduced onto a reaction surface and compartmentalized to form a packet. A position of the packet is sensed with a position sensor. A programmable manipulation force is applied to the packet at the position. The ... 03/30/06 - 20060065531 - Methods and materials for optimization of electronic transportation and hybridization reactions Methods for the transport and hybridization of a nucleic acid on an electrode device by providing a low conductivity buffer with a reducing agent to the device. The low conductivity buffer may also contain a zwitterion. A current and voltage is applied to a location of the device to effect ... 03/30/06 - 20060065530 - Capillary electrophoresis probes and method A novel class of capillary electrophoresis probes and a method of employing the same are described. The novel class of capillary electrophoresis probes are comprised of one or more vinylogous carboxylic acid compounds or their derivatives. In another aspect of the present invention, a method of detecting ions in water ... 03/30/06 - 20060065529 - Variable charge films for controlling microfluidic flow A microfluidic device for carrying a liquid, the device comprising a microfluidic channel having an interior wall and a polyelectrolyte film on the interior wall whereby liquid carried by the channel contacts the polyelectrolyte film, the polyelectrolyte film having a thickness of about 1 to about 1000 nanometers and comprising ... 03/30/06 - 20060065528 - Nanostructured devices for separation and analysis Methods for forming an apparatus containing a nanofluidic device with a pattern having nanoscopic features includes producing a regular interference pattern in a substrate using two coherent light beams. In an embodiment, an apparatus includes a nanofluidic device having nanoscopic features in at least two dimensions. In an embodiment, a ... 03/16/06 - 20060054503 - Methods for manipulating droplets by electrowetting-based techniques Methods are provided for manipulating droplets. The methods include providing the droplet on a surface comprising an array of electrodes and a substantially co-planer array of reference elements, wherein the droplet is disposed on a first one of the electrodes, and the droplet at least partially overlaps a second one ... 03/16/06 - 20060054502 - Localized chemical microgradients A device for creating microgradients in solution is disclosed. The device contains a microfluidic channel with openings at each end and two or more small apertures to a bath. Electrodes are placed in the openings at either end of the channel and an electrical power supply is connected to the ... 03/09/06 - 20060049052 - Ampholytic buffer having high buffering capacity and high conductivity in isoelectric form Ampholytic buffers having a high buffering capacity and a high conductivity in the isoelectric state were synthesized by creating molecules in which four or more bonds separate the charge-carrying or chargeable atoms of the pI-determining weak electrolyte functional groups and, simultaneously, the charge-carrying or chargeable atom of the weak or ... 03/09/06 - 20060049051 - Microfabricated chip and method of use A multiplexed, absorbance-based microfabricated chip electrophoresis system, microfabricated chip, and method of use are included for the detection and identification of protein species. The microfabricated chip electrophoresis system capable of analyzing multiple samples simultaneously. The system uses a microfabricated chip having a sample chamber for first dimension separation of a ... 03/09/06 - 20060049050 - Separation of molecules The present invention relates to a method and an apparatus for separation of molecules, particularly biomolecules, in solution. Certain aspects of the invention further relate to a system for automated separation of molecules in solution. Further aspects of the invention relate to a computer program for separation of molecules in ... 03/02/06 - 20060042948 - Microfluidic electrophoresis chip having flow-retarding structure A capillary electrophoresis device and separation protocol uses a hydraulic resistance-providing structure (HRPS) in the main separation channel to separate the divide the main separate channel into an upstream portion and a downstream portion. The HRPS may take the form of a porous plug, or a solid plug provided with ... 03/02/06 - 20060042947 - Nanotube fluid pump A microfluidic pump has an outer housing such as a capillary tube, a nanotube, and an ionic fluid or alcohol. The nanotube is placed inside the capillary tube, and the capillary tube is filled with the ionic fluid or alcohol. A voltage source is connected to the nanotube, and upon ... 02/23/06 - 20060037860 - Small separation apparatus An apparatus for processing compounds in small volumes by electrophoresis, the apparatus comprising: (a) a cathode in a static cathode buffer zone or compartment; (b) an anode in a static anode buffer zone or compartment, the anode disposed relative to the cathode so as to be adapted to generate an ... 02/16/06 - 20060032746 - Method and device for contacting a microfluidic structure The present invention relates to a method and a device for contacting a microfluidic structure. The device comprises a receptacle for the microfluidic structure and also a contact unit. According to one aspect of the invention, the contact unit has at least one hollow needle, which is designed for piercing ... 02/09/06 - 20060027455 - Selective detection of proteins that contain two or more alpha-helical transmembrane domains Embodiments of the present invention provide a staining solution and of method of using the staining solution for selectively detecting proteins that contain two or more α-helical transmembrane domains. The staining solution comprises a lipophilic dyes and at least about a 30% hydrophobic solvent. The dyes of the present are ... 02/09/06 - 20060027454 - Procedure for the fractionation of proteins by using sequential ion exchange and hydrophobic interaction chromatography as prefractionation steps before analysis by two dimensional electrophoresis After the sequencing of the human genome, great interest has developed in trying to discern the complementary proteome of humans and other species. The present disclosure provides devices, systems, and methods for proteomic fractionation that may increase the number of protein spots visualized by 2DE analysis, and may allow enrichment ... 12/29/05 - 20050284760 - Preliophic moleculator using electric fields and gradients for manipulating molecules Apparatus and methods of using the apparatus for inducing movement and interaction of molecules in an electric field of an electrophoretic device that is circular in configuration to mimic a living cell. The circular electrophoretic device supports an isoelectric focusing medium, such as a gel on a gel plate with ... 12/01/05 - 20050263398 - Micro fluidics system and treating method using same For enlarging the application range of samples capable of being treated, decreasing the amount of samples used, preventing deterioration of samples by a change with the passage of time and preventing mixing of samples by diffusion, a micro fluidics system according to the present invention comprises a sample server which ... 11/24/05 - 20050258040 - Chiral temperature gradient focusing A method and device are provided for concentrating and separating materials in fluids within a fluidic device having a fluid conduit such as a channel or capillary. The concentration is achieved by balancing the electrophoretic velocity of a material against the bulk flow of fluid in the presence of a ... 11/17/05 - 20050252773 - Thermal reaction device and method for using the same An M×N matrix microfluidic device for performing a matrix of reactions, the device having a plurality of reaction cells in communication with one of either a sample inlet or a reagent inlet through a via formed within an elastomeric block of the device. Methods provided include a method for forming ... 11/17/05 - 20050252772 - Flow device Liquid flow devices, particularly microfluidic devices, containing solid porous materials. Flow in the devices can be pressure-driven flow and/or electroosmotic flow. The porous materials are preferably pre-shaped, for example divided from a sheet of porous material, so that they can be assembled with liquid-impermeable barrier materials around them. The devices ... 11/10/05 - 20050247563 - Repetitive affinity separation and uses therefor Improved methods for the separation, isolation, enrichment, or detection of target molecules, such as nucleic acids and proteins, within dilute or heterogeneous samples, such as bodily fluids, excreta or tissue samples, are disclosed. The methods include repetitively and rapidly passing a sample across at least one region of a conduit ... 11/10/05 - 20050247562 - Determination method for automatically identifying analyte liquid and standard solution for biosensor According to the standard solution and the determination method of the present invention, in a case where a voltage is applied by a drive voltage of a measurement apparatus to an electrode portion of a biosensor comprising an electrode portion including a counter electrode and a measuring electrode formed on ... 11/03/05 - 20050241941 - High throughput screening assay systems in microscale fluidic devices The present invention provides novel microfluidic devices and methods that are useful for performing high-throughput screening assays. In particular, the devices and methods of the invention are useful in screening large numbers of different compounds for their effects on a variety of chemical, and preferably, biochemical systems. ... 11/03/05 - 20050241940 - Fast perfusion system and patch clamp technique utilizing an interface chamber system having high throughput and low volume requirements A system for carrying out fast perfusion for the patch clamp techniques useful in studying the effect of compounds on ion transfer channels in biological tissue is disclosed. The invention additionally includes microperfusion chamber assemblies capable of utilizing small amounts of material to be tested and small amounts of liquid ... 10/20/05 - 20050230252 - Microfluidic test device The present invention provides biosensor test devices for measuring the presence or amount of an analyte in a biological fluid. The devices have a base plate that has an electrode system embedded therein, and a hydrophilic porous material situated on the base plate. A hydrophobic protective layer is situated on ... 10/20/05 - 20050230251 - Actuator in a microfluidic system for inducing electroosmotic liquid movement in a micro channel The present invention describes an actuator in a microfluidic system for inducing an electroosmotic liquid movement in a microchannel. ... 10/13/05 - 20050224351 - Microfluidic devices for introducing and dispensing fluids from microfluidic systems The present invention provides microfluidic devices, systems and methods for using the same, which facilitate the introduction of fluid to and from a microfluidic channel located within the microfluidic devices. ... 10/13/05 - 20050224350 - Counter electroseparation device with integral pump and sidearms for improved control and separation A device is disclosed having an electroosmotic pump in communication with a particle separating channel and a first electrode disposed proximate the one end the particle separating channel and at least one second electrode spaced apart the first electrode to maintain a first voltage. The device may also include at ... 09/15/05 - 20050199498 - Purification of blood clotting proteins A method of separating a blood clotting protein from a mixture of blood clotting protein and at least one contaminant, the method comprising: (a) placing a blood clotting protein and contaminant mixture in a first solvent stream, the first solvent stream being separated from a second solvent stream by a ... 09/01/05 - 20050189224 - Microfluidic devices for electrophoretic analysis of materials The present invention provides a microfluidic system for fast, accurate and low cost electrophoretic analysis of materials in the fields of chemistry, biochemistry, biotechnology, molecular biology and numerous other fields. Light from periodically spaced regions along a channel in the microfluidic system are received by a photodetector. The intensity of ... 08/25/05 - 20050183955 - Electrodialyzed compositions and method of treating aqueous solutions using elecrtrodialysis An electrodialysis system is used to produce electrodialyzed compositions with altered pH but without objectionable odor and taste. An aqueous solution is contacted with a membrane electrodialysis system and an electrical potential is applied in an amount effective for changing the pH of the aqueous solution by at least about ... 08/11/05 - 20050173247 - Microtiter plate format device and methods for separating differently charged molecules using an electric field The present invention relates generally to microtiter plate format devices and methods for separating molecules having different net charges. The devices and methods of the invention are particularly suited for use in high-throughput screening to monitor enzymatic reactions which result in a product having an altered net charge. For example, ... 08/04/05 - 20050167267 - Flow cell, method for separating carrier-free radionuclides, and the radiochemical reaction thereof The invention relates to a flow cell, a method for separating carrier-free radionuclides from a liquid or liquefiable target material, and the radiochemical reaction thereof. According to prior art, flow cells are known which require reaction volumes corresponding to the volume of the target material in order to carry out ... 07/28/05 - 20050161328 - Electrophoretic analysis system having in-situ calibration An electrophoretic system having a plurality of separation lanes is provided with an automatic calibration feature in which each lane is separately calibrated. For each lane, the calibration coefficients map a spectrum of received channel intensities onto values reflective of the relative likelihood of each of a plurality of dyes ... 07/28/05 - 20050161327 - Microfluidic device and method for transporting electrically charged substances through a microchannel of a microfluidic device A microfluidic device includes an inlet reservoir, for receiving electrically charged substances dispersed in a fluid medium, a microfluidic circuit in fluidic connection with the inlet reservoir, and an electric transport device for moving the electrically charged substances along the microfluidic circuit. The electric transport device comprises a number of ... 07/28/05 - 20050161326 - Microfluidic treatment method and device The present invention relates to a microchip apparatus using liquids. More specifically, the invention provides a liquid mixing apparatus comprising at least two microchannels for introducing liquids and a mixing microchannel that connects to the at least two liquid-introducing microchannels, wherein the liquids are transported from the respective liquid-introducing microchannels ... 07/21/05 - 20050155860 - 03-ca-191 microfluidic device and method of locally concentrating electrically charged substances in a microfluidic device A microfluidic device includes a microfluidic circuit, having an axis, and an electric field generator, arranged to establish an electric field (E) within at least a section of the microfluidic circuit, the electric field (E) being oriented transversally to the axis. The electric field is used to locally concentrate charged ... 07/14/05 - 20050150764 - Tetrahydropyridazine derivatives and their use as pesticides in which R, X and Y are as defined in the disclosure, to a process for preparing them and to their use as pesticides. ... 07/07/05 - 20050145495 - Mixing reactions by temperature gradient focusing A method is provided for observing mixing interactions and reactions of two materials in a fluid. The method in one form provides for concentrating by balancing electrophoretic velocities of a material against the bulk flow of fluid in the presence of a temperature gradient. Using an appropriate fluid, the temperature ... 06/23/05 - 20050133371 - Apparatus and method for edman degradation on a microfluidic device utilizing an electroosmotic flow pump The present invention comprises an electroosmotic flow pump with both anion and cation exchange beads packed in separate channels that pump towards an intersection. Combining the two flow streams results in higher flowrates for the pump and allows operation of the pump over a wide pH range. The pump can ... 06/23/05 - 20050133370 - Analyte injection system This invention provides methods and devices for spatially separating at least first and second components in a sample which in one exemplary embodiment comprises introducing the first and second components into a first microfluidic channel of a microfluidic device in a carrier fluid comprising a spacer electrolyte solution and stacking ... 06/02/05 - 20050115836 - Hydrophobic surface provided with a multitude of electrodes The invention relates to a supporting plate and/or analysis plate for accommodating the smallest drops of liquid, having an ultraphobic surface, which is open at the top, and having a grid of electrodes that are, in essence, uniformly distributed. These electrodes, while being situated underneath the ultraphobic surface, each enable ... ### FreshPatents.com Support |