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Patent Searching and Data


Matches 401 - 450 out of 2,113

Document Document Title
WO/2001/022078A1
The invention relates to a method for isolating and/or identifying at least one active chemical substance being contained in a mixture of active and inactive chemical substances. The inventive method is characterised by the steps: a) add...  
WO/2001/020315A1
An apparatus for rehydrating and for performing electrophoresis on a gel strip includes a tray defining a plurality of parallel troughs configured to receive gel strips. Each trough defines a centrally located rehydration area and an ele...  
WO2000028314A9
This invention relates to methods and formulations for the separation of biological macromolecules according to their size using capillary electrophoresis with improved polyacrylamide matrixes under denaturing conditions.  
WO/2001/017662A2
The present invention provides apparatuses and methods for continuously separating particles of interest from a heterogenous particle population. the heterogeneity can be based on, for example, magnetic susceptibility, particle size, the...  
WO/2001/014870A1
Methods and apparatus for discriminating matter in a chamber having an inlet port and an outlet port utilizing dielectrophoresis and field flow fractionation. A carrier medium is introduced into the inlet port and is directed from the in...  
WO/2001/014437A1
The instant invention describes uncharged water-soluble polymers to suppress electroosmotic flow in capillary electrophoresis. The polymers in the instant invention are copolymers of various derivatives of acrylamide and methacrylamide m...  
WO/2001/012327A1
A method for conducting a broad range of biochemical analyses or manipulations on a series of nano- to subnanoliter reaction volumes and an apparatus for carrying out the same are disclosed. The method and apparatus are implemented on a ...  
WO2000067907A3
Devices and methods are provided using microfluidic devices for manipulating small volumes and determining a variety of chemical and physical events. The devices rely upon an opening to the atmosphere of a small volume in a zone, where a...  
WO/2001/008802A1
An automated system utilizes an array of nanoscale capillary-dimension reaction chambers (12). The ends of the chambers are temporarily sealed with deformable membranes (264a, 264b) and the reactions effected by incubation or temperature...  
WO/2001/009389A2
Methods for preparing nanoscale reactions using nucleic acids are presented. Nucleic acids are captured saturably, yet reversibly, on the internal surface of the reaction chamber, typically a capillary. Excess nucleic acid is removed and...  
WO/2001/005512A1
In a dielectrophoretic cell having an array of electrodes and means to apply electrical signals to the electrodes, the electrodes comprise a planar array of serpentine or zig-zag electrodes with their curvatures in register. The serpenti...  
WO/2001/005513A1
In a method of manipulating particles suspended in a liquid medium, a moving standing wave ultrasonic vibration and an electrical field capable of generating a dielectrophoretic force on the particles are applied. The ultrasonic vibratio...  
WO/2001/005511A1
An electrode formation for use in an AC electrokinetic DEP or TWD or electrorotation cell comprises a substrate on which there is a set of conventional electrodes and a further electrode array to measure an AC electrokinetic-related prop...  
WO/2001/005514A1
A method of travelling wave dielectrophoresis applicable to a suspension of particles in which a first signal at a first frequency and a plurality of different phases is applied to generate a TWD force, and simultaneously a second signal...  
WO2000056444A3
A composition of a liquid (26) is caused to interact with a narrow band shaped area at a chosen position on a solid surface within a flow channel (12) by hydrodynamic focusing of a guided stream of said liquid between two streams of guid...  
WO/2000/077163A1
An electrochemical device for moving particles covered with a protein, characterized in that it has at least n pieces (n ≥ 2) of electrodes contacting with a liquid containing particles covered with a protein and a circuit generating a...  
WO2000047322A3
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....  
WO2000045147A3
The aim of the invention is to detect objects, especially in fluidic microsystems. At least one static or moving object (10) is represented on a structured mask (20) having at least one segment (30) which can transmit light from a planar...  
WO/2000/069565A1
The invention relates to an apparatus and a method for establishing closed dielectrophoretic potential cages and precise displacement thereof, suitable for the manipulation of particles and detection of same. The apparatus comprises a fi...  
WO/2000/067907A2
Devices and methods are provided using microfluidic devices for manipulating small volumes and determining a variety of chemical and physical events. The devices rely upon an opening to the atmosphere of a small volume in a zone, where a...  
WO/2000/060065A1
An object of the invention is to provide a tangential flow, cell concentration and fusion apparatus (12) which includes a transparent housing (24) and a first input channel (1) contained in the housing (24). In the housing (24), a concen...  
WO/2000/056444A2
A composition of a liquid (26) is caused to interact with a narrow band shaped area at a chosen position on a solid surface within a flow channel (12) by hydrodynamic focusing of a guided stream of said liquid between two streams of guid...  
WO/2000/049173A2
This invention relates to a method and a device for separating substances into and from biological materials.  
WO/2000/047322A2
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....  
WO/2000/046595A1
Microfluidic devices are provided where barriers are introduced between different compartments of the device to prevent fluid flow between the two compartments. Different materials and methods are employed for the introduction and remova...  
WO/2000/045147A2
The aim of the invention is to detect objects, especially in fluidic microsystems. At least one static or moving object (10) is represented on a structured mask (20) having at least one segment (30) which can transmit light from a planar...  
WO/2000/040958A1
The invention concerns a medium comprising an electrolyte wherein is dissolved at least an assembly of block copolymers characterised in that said block copolymers: are present in said electrolyte at a concentration level to provide said...  
WO/2000/038743A1
A method of removing a biological contaminant from a mixture containing a biomolecule and the biological contaminant, the method comprising: (a) placing the biomolecule and contaminant mixture in a first solvent stream, the first solvent...  
WO2000028315B1
A device for control of ultrasmall volume fluid flow used in the fields of electrophoretic separation, chemical analysis, and microchemical reactions has a substrate defining a capillary channel and integrated external electrodes to cont...  
WO/2000/038759A1
A method of treating blood or plasma of a subject to remove metabolic contaminants, the method comprising: (a) placing blood or plasma from the subject in a first solvent stream, the first solvent stream being separated from a second sol...  
WO/2000/037920A1
In order to effect dielectric spectroscopy on at least one suspended particle (11) in a microsystem, the particle (11) is exposed to high frequency electric rotating fields in an electrode array (16) and maintained in the focus (14) of a...  
WO/2000/037163A1
We have performed separation of bacterial and cancer cells from peripheral human blood in microfabricated electronic chips by dielectrophoresis. The isolated cells were examined by stining the nuclei with fluorescent dye followed by lase...  
WO/2000/028314A1
This invention relates to methods and formulations for the separation of biological macromolecules according to their size using capillary electrophoresis with improved polyacrylamide matrixes under denaturing conditions.  
WO/2000/028315A1
A device for control of ultrasmall volume fluid flow used in the fields of electrophoretic separation, chemical analysis, and microchemical reactions has a substrate defining a capillary channel and integrated external electrodes to cont...  
WO/2000/016907A1
A micromachined system for electrical field-flow fractionation of small test fluid samples is provided. The system includes a microchannel device (12) comprising a first substrate (14) having a planar inner surface with an electrode (21)...  
WO/2000/017631A1
The invention relates to a method and a system, suitable for automation, for the, preferably preparative, separation of amphoteric macromolecules, e.g. proteins or peptides, wherein said method comprises the steps of: (a) subjecting said...  
WO/2000/013776A1
An electrophoresis apparatus, holds a cartridge configured to be removably mounted in the apparatus. A separation membrane is located in the cartridge. The separation membrane has a first side along which a first flow path defined in a f...  
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...  
WO/2000/000293A1
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...  
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...  
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 (...  
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...  
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...  
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 ...  
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...  
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...  
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 ...  
WO1999038874A3
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...  
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...  
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...  

Matches 401 - 450 out of 2,113