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7399401 |
Methods for use in assessing a flow condition of a fluid
A device for use in assessing a flow condition of a fluid, or a fluid in a flow path, is provided. The device comprises at least one electrochemical cell, comprising a working electrode and at...
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7396683 |
Detection of allergen-associated materials
Measurement of the redox properties of household dust is used to detect the presence of allergen-associated materials. Measurement may be electrochemical, preferably amperometric. A disposable...
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7393504 |
Flow injection electrochemical detecting device
A flow injection electrochemical detecting device has a base ( 10 ), a cover pivotally mounted on the base ( 10 ), and a locking device attached between the base ( 10 ) and the cover ( 20 ). The...
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7388200 |
Sensing method and nanosensing device for performing the same
A sensing method includes exposing a nano-transducer having a controlled surface to a sample including at least one species. Adsorption of the species on the nano-transducer is transduced to a...
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7387714 |
Electrochemical sensor strip
Provided is a single use electrochemical sensor strip having an active portion and an inactive portion. The inactive portion may be a handling strip. Another aspect provided is an article...
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7378006 |
Aqueous solutions for reducing the rate of oxygen loss, and methods thereof
Compositions and methods for reducing the rate of loss of oxygen from a solution and increasing the effective life span of oxygen-containing calibration solutions.
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7361257 |
Electrochemical screening system
Devices and methods for evaluating an electrochemical reaction are disclosed. A device includes an electrochemical cell having a cavity for containing a liquidus electrolyte, a first working...
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7347926 |
Method and apparatus for measuring specific component
A method for measuring a concentration of a specific component includes the steps of: supplying a sample fluid to a reaction field holding a reagent; obtaining a single or a plurality of leak...
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7344626 |
Method and apparatus for detection of abnormal traces during electrochemical analyte detection
Detection of abnormal signal traces in electrochemical measurements generated using an electrochemical test strip to which a potential is applied allows for an indication of an erroneous analyte...
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7338808 |
Method and apparatus for determining zeta potential using alternating current electric field and T channel
Provided is a method for determining a zeta potential generated between a solid wall and a solution. The method includes (a) injecting an electrolyte solution into a first inlet of a T channel,...
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7335292 |
Sensor with improved shelf life
The present invention provides a metal electrode stabilized by a coating, the coating comprising a sulfur containing moiety in its molecular structure. The coating may also include a hydrophilic...
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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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7318887 |
Solid state reference electrode
A reference electrode includes a conductive substrate having a first surface and an ionically insulating, hydrophobic layer adjacent to the first surface having a plurality of non-selective ion...
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7312087 |
Devices and methods for biochip multiplexing
The invention is directed to devices and methods that allow for simultaneous multiple biochip analysis. The method of analyzing the plurality of biochips includes inserting a first biochp into a...
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7312027 |
Binding assay device with non-absorbent carrier material
A method of producing a binding assay device provides a porous membrane comprising a material enabling capillary movement of a liquid sample from a first area on the membrane on a second area on...
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7294246 |
Electrode for electrochemical sensors
Provided are electrochemical circuits with electrodes having a main body section and at least one neck section wherein the width of at least a portion of the neck section is less than the width of...
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7291503 |
Reversible resistivity-based sensors
One aspect of the present invention relates to a method for detecting the presence of an analyte by comparing the conductivity of a mixture containing an analyte and a sensor to the conductivity of...
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7288404 |
Microcantilevers for biological and chemical assays and methods of making and using thereof
Disclosed herein are microcantilevers having structural shapes that are less sensitive to turbulence and drift effects yet provide greater deflections due to analyte concentration. The structural...
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7285411 |
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...
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7285198 |
Strip electrode with conductive nano tube printing
An electrochemical test device for determining the presence or concentration of an analyte in an aqueous fluid sample comprises a substrate comprising a non-conductive material; a working electrode...
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7270850 |
Mesoporous permeation layers for use on active electronic matrix devices
The present invention provides improved synthetic polymer hydrogel permeation layers for use on active electronic matrix devices for biological assays. The present invention includes methods for...
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7267751 |
Programmable multiplexed active biologic array
The present invention is directed to devices and methods for carrying out and/or monitoring biological reactions in response to electrical stimuli. A programmable multiplexed active biologic array...
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7254986 |
Sensor device for detection of dissolved hydrocarbon gases in oil filled high-voltage electrical equipment
A multi-gas sensor device for the detection of dissolved hydrocarbon gases in oil-filled electrical equipment. The device comprising a semiconductor substrate, one or more catalytic metal...
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7250288 |
Electrode compositions and configurations for electrochemical bioreactor systems
Electrodes and configurations for electrochemical bioreactor systems that can use electrical energy as a source of reducing power in fermentation or enzymatic reactions and that can use electron...
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7244961 |
Integrated system with modular microfluidic components
Modular fluidic microchips, systems integrating such microchips, and associated preparative and analytical methods are presented.
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7232512 |
System and method of sensitivity adjustment for an electrochemical sensor
A gas detector with a compensated electrochemical sensor exhibits altered sensitivity in response to decreasing sensitivity relative to both gas exposure and non-gas exposure. A sensitivity...
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7226530 |
Conducting polymer nanofiber sensors
Polymer nanofibers, such as polyaniline nanofibers, with uniform diameters less than 500 nm can be made in bulk quantities through a facile aqueous and organic interfacial polymerization method at...
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7226414 |
Method and apparatus for analyte sensing
In one aspect, the present invention is directed to a glucose sensing device for implantation within subcutaneous tissue of an animal body. In one embodiment, the glucose sensing device includes a...
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7225084 |
Measuring device for a process technology
A measuring device for process technology, useful in measuring- and/or cleaning- and/or calibration-installations in the field of process automation for measuring pH-values and/or redox potentials...
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7220550 |
Molecular wire injection sensors
Disclosed is a sensor for sensing the presence of an analyte component without relying on redox mediators. This sensor includes (a) a plurality of conductive polymer strands each having at least a...
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7217354 |
Method and apparatus for detection of chemical vapors
The present invention is a gas detector and method for using the gas detector for detecting and identifying volatile organic and/or volatile inorganic substances present in unknown vapors in an...
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7214300 |
Integrated electrokinetic devices and methods of manufacture
Devices with electrokinetic elements are disclosed as well as their method of microfabrication for use in micro-scale analysis, mixture separation and reaction. The devices consist of solid...
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7198754 |
Biological material detection element, biological material detection method and apparatus, charged material moving apparatus
A biological material detection apparatus which detects a charged biological material such as a gene or protein contained in a sample liquid is disclosed. A biological material detection element...
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7189367 |
Reactor and process for production thereof
In order to be capable of a chemical reaction, analysis or the like wherein a small amount of samples is used, a reactor comprises a flat plate-like first substrate the inside of which is provided...
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7182853 |
Redox control/monitoring platform for high throughput screening/drug discovery applications
The invention is a redox control and monitoring platform that is to be used in conduction with another detection scheme. The platform includes a portion of an electrochemical control. The...
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7176692 |
Measuring probe for potentiometric measurements
A measuring probe for potentiometric measurements has a housing ( 2 ) formed of an electrically insulating material that encloses at least one hollow space ( 8, 10 ) containing a half-cell element...
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7172728 |
Test strip containers and methods of using the same
Devices for dispensing test strips and methods of using the same are provided. The subject devices are characterized by having a base and a cover, where the cover includes a test strip selecting...
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7156965 |
Scanning electrochemical potential microscope
An apparatus and method of determining a potential at a surface of a sample in a polar liquid, for example, across an electrical double layer, includes the step of immersing the sample in a polar...
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7144553 |
Use of an array of polymeric sensors of varying thickness for detecting analytes in fluids
Chemical sensors for detecting the activity of a molecule or analyte of interest is provided. The chemical sensors comprise and array or plurality of sensors that are capable of interacting with a...
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7144486 |
Multilayer microcavity devices and methods
Microcavities and micropores that are microscopic (<1 mm) in width and depth and contain any number of individually-addressable electrodes, separated by insulators, along the walls of each...
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7144485 |
Strips for analyzing samples
This invention relates to a strip for analyzing a sample. The strip includes two insulating layers, a spacer layer, and a conducting circuit. The spacer layer is disposed between the two insulating...
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7135331 |
Apparatus for detecting biopolymers and cartridge
Provided is an apparatus for detecting biopolymers (DNA) capable of total analysis including non-reacted samples without complicated operations such as washing. A DNA probe is fixed to one of...
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7122102 |
Electrochemical sensor
An electrochemical sensor with a capillary channel is formed by placing a sacrificial insert on a sensor base and applying casting material. After the casting material is cured, the sacrificial is...
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7118910 |
Microfluidic device and methods of using same
A variety of elastomeric-based microfluidic devices and methods for using and manufacturing such devices are provided. Certain of the devices have arrays of reaction sites to facilitate high...
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7115362 |
Electrochemical test device and related methods
An electrochemical test device is provided for determining the presence or concentration of an analyte in an aqueous fluid sample. The electrochemical test device includes a working electrode and a...
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7063776 |
Structure and manufacturing method of disposable electrochemical sensor strip
A disposable electrochemical sensor strip is provided. The sensor strip includes an isolating sheet having at least a through hole, at least a conductive raw material mounted in the through hole, a...
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7052588 |
Nanotube chemical sensor based on work function of electrodes
In one embodiment a method for sensing specific molecules is provided. The method comprises forming a nanoelement structure and forming two spaced apart electrodes in contact with the nanoelement...
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7047795 |
Analyzing instrument, analyzing device, and method of manufacturing analyzing instrument
An analyzing instrument ( 2 ) according to the present invention includes a capillary ( 6 ), a sample liquid inlet ( 42 ), and a liquid introduction controller for a controlled pattern of...
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7045046 |
Sensor connection means
The invention relates to a sensor adapted for electrical connection to a power source having an electrical contact means ( 3 ). The sensor has a first insulating substrate ( 1 ) carrying a first...
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7041510 |
System and method for programmable illumination pattern generation
A method and apparatus for the manipulation of colloidal particulates and biomolecules at the interface between an insulating electrode such as silicon oxide and an electrolyte solution....
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