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7618524 |
Polymeric salt bridges for conducting electric current in microfluidic devices
A “cast-in-place” monolithic microporous polymer salt bridge for conducting electrical current in microfluidic devices, and methods for manufacture thereof is disclosed. Polymeric salt bridges...
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7604718 |
Dynamically configurable electrode formed of pixels
A dynamically configurable electrode includes a first planar electrode and a planar array of pixels in a different plane, wherein a polarizable liquid medium (including electrolyte solutions) is to...
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7597791 |
Method and apparatus for generating electric fields and flow distributions for rapidly separating molecules
A method and apparatus for generating tunable, uniform electric fields in fluidic applications for rapid separation of molecules, such as DNA, is provided. A region receives the molecules to be...
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7597790 |
Flow control systems
A flow controller which uses a combination of hydrostatic pressure and electroosmotic flow to control the flow of a fluid. A driving fluid ( 1204 ) whose flow rate is dependent on both hydrostatic...
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7594986 |
Apparatus for capillary electrophoresis comprising polyelectrolyte multilayers
An apparatus and method for capillary zone electrophoresis includes a polyelectrolyte multilayer positioned in a capillary tube for analytical separations of macromolecules. The capillary comprises...
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7591936 |
Microfluidic device wherein the liquid/fluid interface is stabilized
The microfluidic device comprises at least one microchannel bounded by a bottom wall, side walls and a top wall and which is designed to contain at least one liquid and at least one fluid...
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7591933 |
Spiral electrodeionization device with segregated ionic flows
Some embodiments of the invention relate to an electrodeionization device that includes comprising a generally cylindrical housing. The cylindrical housing includes a cylindrical inner core and an...
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7588671 |
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...
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7569129 |
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,...
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7559356 |
Electrokinetic pump driven heat transfer system
A heat transfer system comprising a primary heat exchanger for receiving heat from a heat source; a secondary heat exchanger for exhausting heat to a heat sink; a conduit connecting the primary...
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7534336 |
Continuous flow particle concentrator
An apparatus for extracting and concentrating bioagents within a continuously flowing fluid medium includes a flow channel fluid inlet, in which bioagents are concentrated from three dimensions to...
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7531072 |
Device for controlling the displacement of a drop between two or several solid substrates
A device for reversibly displacing at least one volume of liquid under the effect of an electrical control, including first electrically conductive device, second electrically conductive device,...
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7524409 |
Method and system for electrokinetic, preparative sample separation in high-surface-area separation channels with non-convex cross sections
Embodiments of the present invention employ complexly shaped, high-surface-area channels for separation and purification of molecules, including important biopolymers such as proteins,...
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7523608 |
Electrically driven microfluidic pumping for actuation
An actuator cell includes a supply chamber containing fluid, and an expansion chamber for receiving fluid from the supply chamber, and being expandable to deform a predetermined area of the...
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7517440 |
Electrokinetic delivery systems, devices and methods
A method of pumping fluid including the steps of providing an electrokinetic pump comprising a pair of double-layer capacitive electrodes having a capacitance of at least 10 −2 Farads/cm 2 and...
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7513984 |
Capillary array electrophoresis apparatus
When irradiating laser beam from the side face of the capillary array, an optical axis of the laser beam is inclined in vertical direction with respect to a plane face formed by the capillary...
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7491307 |
Portable bioagent concentrator
A portable apparatus for extracting and concentrating bioagents within a fluid medium includes a container with sample solution inlet port and traveling wave grids patterned on surfaces of the...
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7491304 |
Carrierless electrophoresis process and electrophoresis device for carrying out this process
A free flow electrophoresis method for separating sample substances into their analytes. This method comprises multiple steps: a first step for the crude fractionation of the sample substance and...
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7488407 |
Castable three-dimensional stationary phase for electric field-driven applications
A polymer material useful as the porous dielectric medium for microfluidic devices generally and electrokinetic pumps in particular. The polymer material is produced from an inverse (water-in-oil)...
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7488406 |
Apparatus for collecting particles
Detail is apparatus for collecting particles from a liquid, including a first electrode having an upper surface defining one or more substantially circular areas of a predetermined diameter...
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7485214 |
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...
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7465382 |
Precision flow control system
A precision flow controller is capable of providing a flow rate less than 100 microliters/minute and varying the flow rate in a prescribed manner that is both predictable and reproducible where the...
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7462268 |
Particle/cell separation device and compositions
A particle/cell separation device is described which is particularly adapted for neutrophil depletion from a preparation of whole blood or platelet-rich plasma. Also described are blood and...
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7458783 |
Method and apparatus for improved pumping medium for electro-osmotic pumps
A pumping medium for an electro-osmotic pump made of porous silicon. The porous silicon may result in a lower required pumping voltage and a smaller form factor for an equivalent flow rate and...
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7454988 |
Method for fluid sampling using electrically controlled droplets
The present disclosure relates to a method for sampling a fluid, such as air. As fluid flows through a device, a scrubbing liquid is positioned in a pattern to contact the fluid and constituents in...
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7449093 |
Device and method for preparative electrophoresis
Method and appliance for carrying out membrane electrophoresis using microfiltration or ultrafiltration membranes, wherein the electroosmotic flow which develops in the membrane pores is reduced or...
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7439075 |
Method and device for withdrawing suspended microparticles from a fluidic microsystem
A method of discharging a fluid flow with suspended microparticles from a fluidic microsystem ( 10 ) is described, whereby the fluid flow converges with at least one output flow to form a discharge...
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7436387 |
Electrooptical device utilizing electrophoresis
An electrooptical device comprises an electrooptical layer between electrodes. The electrooptical layer includes a dispersion medium and particles contained in the dispersion medium. The particles...
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7435388 |
Applicator of a fluid sample on a substrate
Applicator of a fluid sample on a substrate, wherein at least an applying blade substantially of rectangular shape in its turn defining a body of the blade, a tip of the blade and two facing side...
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7429317 |
Electrokinetic device employing a non-newtonian liquid
A non-Newtonian fluid is used in an electrokinetic device to produce electroosmotic flow therethrough. The nonlinear viscosity of the non-Newtonian fluid allows the electrokinetic device to behave...
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7427343 |
Entropic trapping and sieving of molecules
Nanofluidic entropic traps, comprising alternating thin and thick regions, sieve small molecules such as DNA or protein polymers and other molecules. The thick region is comparable or substantially...
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7425254 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Fractionation of macro-molecules using asymmetric pulsed field electrophoresis
A method and apparatus for fractionation of charged macro-molecules such as DNA is provided. DNA solution is loaded into a matrix including an array of obstacles. An alternating electric field...
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7419575 |
Microfluidic systems and methods for transport and lysis of cells and analysis of cell lysate
Microfluidic systems and methods are disclosed which are adapted to transport and lyse cellular components of a test sample for analysis. The disclosed microfluidic systems and methods, which...
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7419574 |
Dielectrophoresis device and method having non-uniform arrays for manipulating particles
Microfluidic devices according to embodiments of the present invention include an inlet port, an outlet port, and a channel or chamber having a non-uniform array of insulating features on one or...
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7399398 |
Variable potential electrokinetic devices
Variable potential electrokinetic devices and electrokinetic multipliers used for pumping and flow control are disclosed that offer improvements in safety and design flexibility. The devices of the...
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7399394 |
Electrophoresis device, electrophoresis method using an electrophoresis device and use of the electrophoresis device
An electrophoresis device having a separation chamber that is provided with at least one sample inlet on the inlet side and outlets ( 9 ) for the electrophoretically treated sample species on the...
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7397597 |
Electrophoretic display panel
An electrophoretic display panel for displaying a picture has a pixel having an electrophorectic medium having first and second charged particles, the first charged particles having a first optical...
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7396444 |
Device to operate a laboratory microchip
In a device to operate and handle a laboratory microchip to chemically process or analyze substances, the microchip is on a chip holder ( 41 ) that is part of a first assembly ( 42 ). The first...
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7390388 |
Method of sorting cells on a biodevice
A method of sorting cells for a biodevice comprises directing a flow of cells within a fluid into a filtration structure defining an array of fluid openings and encouraging cell passage of each...
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7384527 |
Electrophoresis apparatus and a plate therefor
The invention provides an electrophoresis apparatus comprising an electrophoretic chamber containing at least on two-plate housing for a sieving matrix, each said at least one two-plate housing...
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7384526 |
High-pressure microhydraulic actuator
Electrokinetic (“EK”) pumps convert electric to mechanical work when an electric field exerts a body force on ions in the Debye layer of a fluid in a packed bed, which then viscously drags the...
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7382514 |
Core-shell particles for electrophoretic display
The invention relates to electrophoretic displays comprising core-shell pigment particles having a core of low specific gravity and low refractive index and a shell of high refractive index.
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7375875 |
Electrophoretic media and processes for the production thereof
A first electrophoretic medium comprises an electrically charged particle suspended in a suspending fluid, the particle having a polymeric shell having repeating units derived from at least one...
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7364647 |
Laminated flow device
A laminated flow device comprises a porous material encapsulated within bonding material. The porous material forms a flow path and the bonding material forms an enclosure surrounding the flow...
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7361260 |
Methods, articles and kits for labeling polymer gels
The invention provides methods, apparatus and kits for integrally labeling polymeric gels, such as polyacrylamide and agarose gels, with indicia that can serve, inter alia, unambiguously to...
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7357852 |
Bubble-free and pressure-generating electrodes for electrophoretic and electroosmotic devices
Bubble-free electrodes, electrochemical cells including bubble-free electrodes, analytical devices, and methods for preparing and using them are provided. The analytical devices each include at...
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7355172 |
Liquid cheromatography/mass spectrometry apparatus
A liquid chromatography/mass spectrometry apparatus combines a chromatograph having a liquid delivery part for delivering mixed multiple solvents, and a mass spectrometer having an ionization part...
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7347921 |
Apparatus and method for threading a biopolymer through a nanopore
The present invention provides an apparatus and method for threading a biopolymer through a nanopore. The apparatus of the present invention provides a substrate having a channel with a channel...
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7341651 |
Nanoscale mass conveyors
A mass transport method and device for individually delivering chargeable atoms or molecules from source particles is disclosed. It comprises a channel; at least one source particle of chargeable...
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7332130 |
Heat-reduction methods and systems related to microfluidic devices
A system and method for preventing or reducing unwanted heat in a microfluidic of the device while generating heat in selected regions of the device. In one example, current is supplied to a...
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