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6805838 |
Assaying device and method for in field urinalysis
An assay device for in field urine analysis including a container having an opening for collecting a urine sample, a cover for sealing the opening of the container and an assay assembly provided in...
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6797236 |
Design and signal recovery of biomolecular sensor arrays
The present invention provides an apparatus and method of reducing noise associated with biomolecular measurement systems. Sensor detection system noise characteristics in the presence of other...
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6790652 |
Method and apparatus for high density format screening for bioactive molecules
A method and apparatus for screening an array of test compounds for bioactivity by contacting an array of test compounds with a detector layer capable of detecting bioactivity, and detecting a...
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6787107 |
Element with coated dosimeter
An element for ascertaining radiation dosage comprising: a support on which is disposed a coated layer, said coated layer comprising a binder and alanine; wherein the alanine, upon exposure to...
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6780651 |
Device for determination of an analyte in a body fluid
A method of making strip for testing for the presence of an analyte generally comprises providing a support member which includes a spreading layer and a reagent layer, and a capillary in...
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6780647 |
Sensor material, sensor and detection method for bio-substance
Provided is a sensor material including at least a stimulus-responsive high polymer gel, a bio-substance-responsive material and a light modulation material. A sensor having at least the sensor...
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6780646 |
Method for determining the storability of a grain or oilseed sample
The rate of carbon dioxide release from a grain sample can be measured by placing the grain sample in a sealed container, and positioning a pH responsive color-change material in the container so...
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6773671 |
Multichemistry measuring device and test strips
A multichemistry measuring device and diagnostic test strips which, in combination with the multichemistry measuring device, provide a multichemistry testing system are disclosed. The test strips...
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6770447 |
Optical assay device and method
The present invention involves an optical assay device and method of use for the detection of an analyte of interest in a sample that conveniently allows control of the flow characteristics of the...
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6770487 |
Bar code readable diagnostic strip test
Diagnostic test devices, including diagnostic strip tests, are provided in which identifying information and the test result are machine-readable. Also provided are methods for obtaining...
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6767714 |
Diagnostic detection device and method
The invention provides an improved test cell for detecting the presence of an analyte in a liquid sample. The device has an elongate casing defining a liquid sample inlet, a reservoir volume, a...
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6767515 |
Tunable laser cavity sensor chip
An integrated optical chip device for molecular diagnostics comprising a tunable laser cavity sensor chip using heterodyned detection at the juncture of a sensor laser and a reference laser, the...
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6759009 |
Method and device for clotting time assay
A self-contained analyzer quantitatively detects a clotting event in a biological fluid. The device includes a base having an open reservoir for receiving the biological fluid. A carrier for a...
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6753189 |
Detection apparatus and method for the same
A catcher, having an immunological epitope, is fixed to a detection zone of a spreading layer. A marker, capable of easy detection, has an inmmunological epitope. The marker and bispecific...
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6743633 |
Method for performing microassays
A system and method for analyzing a plurality of liquid samples. The system has a platen having two substantially parallel planar surfaces and a plurality of through-holes dimensioned so as to...
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6737278 |
Ligand binding assay and kit with a separation zone for disturbing analytes
The invention relates to a method for determining an analyte by means of binding reactions, which method comprises: i) applying the sample to an application zone for sample (ASZ) on a flow matrix...
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6737277 |
Immunoassay devices and materials
An immunochemical assay device comprising a base member, an array disposed on the base member, and at least one assay indicia zone. The array comprises (i) a reservoir pad to receive sample liquid,...
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RE38509 |
On site machine readable IF assaying system
A machine readable assaying system comprising a test card having machine readable assaying means. A plurality of individual analysis strips, each strip comprising antibodies and/or reagents capable...
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6730268 |
Device and methods for single step collection and assaying of biological fluids
Devices, and methods for the use of same, for collecting and assaying a biological fluid in a single step. One method provides means to control and direct the flow of a sample of the biological...
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6730494 |
Alcohol concentration test delivery system
The present invention relates to an alcohol concentration assay test system, including compositions and methods for storing multiple alcohol concentration assay tests and compositions and methods...
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6716639 |
Immunoassay apparatus for detecting nicotine or continine
The invention relates to an immunoassay apparatus, comprising a dry, porous substrate having at least two sections ( 1, 2 ), communicating with one another in the moist state by capillary action,...
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6716392 |
Preservation of liquid biological samples
The present invention relates to the preservation of a liquid biological sample. The biological sample is exposed to a preservative containing at least about 0.15 g of sodium benzoate and at least...
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6713308 |
System for electrochemical quantitative analysis of analytes within a solid phase
The analytical process utilized in the system of this invention comprises three (3) step distinct steps wherein an analyte of interest in a test sample is initially labeled and subsequently...
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6709868 |
Method and apparatus for measuring white blood cell count
A method for quantitatively measuring white blood cell count involves capture of white blood cells from a fluid sample by a retainer, removal of the red blood cells and other interfering substances...
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6706490 |
Method for detecting rheumatoid arthritis employing the CB10 peptide of mammalian type II collagen as an antigen
A predictive test for rheumatoid arthritis comprises the detection of antibodies to collagen in a biological sample from a patient by contacting the biological sample with an antigen comprising the...
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6706539 |
Enzyme substrate delivery and product registration in one step enzyme immunoassays
One-step enzyme immunoassays in which enzyme-antibody conjugate or label and enzyme substrate are separated until separation of bound and free enzyme conjugate or label is complete. This separation...
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6701864 |
Residual life indicator
The present invention is directed toward a residual life indicator. The residual life indicator comprises a solid, surface active, waterproof support medium having a concentric pattern imprinted...
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6703196 |
General purpose structure of an analytical element and its application for analyte determination
The invention concerns an analytical element for the determination of an analyte containing in or on material which enables liquid transport between zones, a sample application zone and a detection...
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6703245 |
Oxygen detecting composition
The oxygen detecting composition of the present invention includes a layered silicate, a cationic surfactant, an organic colorant, a reducing agent, and optionally a basic substance. The oxygen...
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6699720 |
Interference-eliminating membranes, test strips, kits and methods for use in uric acid assay
The present invention relates to an interference-eliminating membrane for use in detecting uric acid in a sample, comprising a compound for inhibiting or shading uric acid interfering substances,...
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6696264 |
Method and apparatus for detection of multiple biological materials with a heterogeneous antibody mixture
The present invention relates to bioassay materials useful for the detection of toxic substances and, more particularly, to packaging materials for food and other products, along with methods for...
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6696240 |
Capillary test strip to separate particulates
A miniaturized, vented capillary channel test strip device for estimating the concentration of an analyte in a fluid is disclosed. The channel transports analysis fluid through interior capillary...
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RE38430 |
Solid phase chromatographic immunoassay
A chromatographic test strip comprising a solid support having at least a first portion and a second portion with said portions being in the same plane so as to permit capillary flow communication...
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6689316 |
Holographic sensors and their production
A method for the production of a holographic sensor wherein the holographic recording material forming the sensitive element is a polymer matrix, which comprises diffusing into the matrix one or...
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6686167 |
Test device for detecting semen and method of use
A test device ( 20 ) for detecting semen includes a strip ( 22 ) having an introduction station ( 24 ), a test station ( 26 ), and a control station ( 28 ) disposed in spaced apart relationship....
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6682937 |
Threshold glucose detection in urine
Methods are provided for glucose detection and quantification in urine. The methods include selecting a test device comprising a matrix impregnated with a chromogenic indicator mixture, locating...
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6682935 |
Optical sensor
An optical sensor is proposed for determining gases in gas mixtures, especially for determining one gas component in the air, having a sensitive layer exposed to the gas and having a device for...
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6680208 |
Rapid protein identification using antibody mixtures
A method and device is disclosed for rapidly identifying a large number of proteins by placing a protein mixture in a sample chamber of an electrophoresis gel, and performing electrophoresis to...
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6677158 |
Method for measurement of glycated hemoglobin by a rapid strip test procedure
The present invention is directed to a novel method for measurement of glycated hemoglobin, as well as assay methods and processes that can be used outside the medical laboratory setting to...
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6673630 |
Method and apparatus for producing visual results using colorimetric strips
One embodiment of the present invention improves the visual use of urine test strips and reagent pads by providing a single color from a reference color spectrum directly on the colorimetric strip...
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6673622 |
Coagulation or lysis assays by measuring impedance
The present invention provides a single-use electronic device and test card for use therein which performs a coagulation or lysis assay of a blood or plasma sample. The device includes a housing...
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6673629 |
Neutralization of polycations in a chromatographic device for whole blood use
A chromatography assay device and method for use with whole blood samples utilizing a red blood cell separating agent to aggregate red blood cells and permit plasma or serum to flow by capillary...
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6673628 |
Analytical test device and method
An analytical test device is described for the immunochromatographic determination of the presence of one or more analytes in fluid samples. The device is configured such that the sample is allowed...
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6670115 |
Devices and methods for detecting analytes using electrosensor having capture reagent
The present invention relates to devices comprising electrosensors containing capture reagents, their preparation thereof, and their use for detecting, preferably, quantitative measurement, of...
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6670192 |
Apparatus for combined assay for current glucose level and intermediate or long-term glycemic control
The present invention is directed to a single test system and method for determining the integrated glycemic condition of a subject by measuring the concentration of glucose and the level of...
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6669908 |
Urine test device
A device for collecting, testing and transporting a liquid specimen of urine or the like incorporates a cup or container and a cooperating lid which becomes sealed about its upper rim when the lid...
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6663833 |
Integrated assay device and methods of production and use
An assay device for the detection of analyte in a sample, methods and immunoassay formats for performing an assay with or without the device, and methods for manufacturing the device are provided....
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6664114 |
Solid phase assay for detection of ligands
The present invention provides an improved system for detecting the presence or level of an analyte in a sample. In “competition-like” assays of the present invention, a sample including an...
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6660534 |
IgG antibody testing method
A method of determining the concentration of IgG antibodies in the biological fluids of mammals. The assay may be performed in a lateral flow cassette or dipstick format where dehydrated...
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6660469 |
Apparatus and method testing a biological fluid
An apparatus for testing a biological fluid from an animal for the presence of disease in the animal. The apparatus including a container, a dipstick and a luminometer. One end of the dipstick is...
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