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7318908 |
Integrated nanotube sensor
Integrated nanotube sensors are adapted for detecting various chemical and biological molecules. In one implementation, nanotube sensor arrays are formed as nano-electronic noses capable of such...
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7318907 |
Surface plasmon enhanced illumination system
Methods and apparatus for producing small, bright nanometric light sources from apertures that are smaller than the wavelength of the emitted light. Light is directed at a surface layer of metal...
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7319037 |
Fluid tester and method of use
Fluid testing device for determining the value of each of a plurality of properties of a fluid, the fluid testing device including a planar base and a plurality of test sections, located on the...
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7319038 |
Sensor for monitoring an analyte
A food spoilage sensor of the general formula
wherein M is a transition metal ion; D 1 , D 2 , D 3 and D 4 can be the same or different and can be N or P; R 1 and R 2 , R 3 and R 4 , R 5 ...
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7316198 |
Humidity indicator
A humidity indicator includes a first film (F 1 ) covering a surface of a humidity-determining plate (B), and a second film (F 2 ) covering a back of the humidity-determining plate (B). A flat air...
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7316929 |
Auto-calibration label and apparatus comprising same
An auto-calibration label for use with one or more sensing instruments. The label includes first and second encoded calibration information. The second encoded calibration information may...
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7316802 |
Device for the stepwise transport of liquid utilizing capillary forces
The device ( 10 ) for the stepwise transport of liquid, particularly of sample liquid to be analyzed, through several reaction chambers located in series in terms of flow while utilizing capillary...
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7314597 |
Chemical agent detection
A chemical agent detector with a lesser demand sensor, a greater demand sensor, an inlet; and a manifold; and methods associated therewith. The manifold is positioned between the inlet and the...
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7312088 |
Method and apparatus for performing SERS analysis using a chemical reference
Apparatus for use in effecting surface-enhanced Raman spectroscopy comprises first and second containment means, the first containment means containing a known quantity of a reference chemical...
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7306164 |
Biochemical analysis method and apparatus
Samples and dry chemical analysis elements, which are necessary for analyses of the samples, are loaded on a sample tray. Each sample is sucked with a spotting nozzle of a spotting unit and spotted...
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7306764 |
Wetness indicator
A wetness indicator including a pH indicating agent may be a single layer or a multilayer composite. One or more layers of the composite may be used to promote or inhibit environmental fluid...
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7303727 |
Microfluidic sample delivery devices, systems, and methods
Methods and apparatus for delivering fluidic materials to sample destinations, including mass spectrometers for analysis are provided. In preferred embodiments, sample aliquots are electrosprayed...
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7303729 |
Apparatus and method for immunological labeling for thin tissue sections
An apparatus and a method for immunological labeling of thin tissue sections are disclosed. The treatment fluid is applied in the form of liquid droplets onto at least one slide, the arrangement of...
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7303925 |
Method of detecting an analyte for lateral flow immunoassay tests
A visual perception of a colored site in an immunoassay device comprising a strip for enabling capillary migration of a fluid sample therealong, a labeled reagent disposed on the strip and...
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7300802 |
Membrane strip biosensor system for point-of-care testing
The present invention relates to a biosensor for point-of-care testing (POCT) whose detection sensitivity was remarkably improved by introducing to membrane strip chromatographic assay system a...
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7300633 |
Specimen collection container
The present invention recognizes that sample handling devices, particularly those used for testing for substances of abuse, do not allow for a separation of the bulk sample from a sample thereof to...
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7300629 |
Humoral testing unit
A blood testing unit is provided with a closed vessel having an outer vessel body and an inner vessel body, and a reagent layer is accommodated in the closed vessel. Reagents which react with a...
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7300632 |
Swab testing device and method
A swab testing device comprises a container ( 1 ) containing a diluent ( 7 ), a cap ( 10, 20 ) detachably mounted on an opening of the container, an elongating stick ( 4 ) secured to or integral...
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7300626 |
Fluid-specimen collecting and testing device and method for recording chromatographic assay test results
A fluid specimen testing device having a removable lid which carries at least one testing strip behind a transparent top viewing window. Testing is initiated by tilting the device into a stable...
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7300627 |
Test sample collection system
A collection system for collecting a liquid test sample that includes a spoon-like member having a bowl portion for collecting and holding the test sample, a handle member housing a test device,...
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7294502 |
Device for collecting liquid samples
The invention relates to a device for collecting samples of fluids, in particular of body fluids such as saliva, said device comprising an absorbent pad and two housing parts which are connected to...
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7294306 |
Inspection tester for explosives
An inspection tester that can be used anywhere as a primary screening tool by non-technical personnel to determine whether a surface contains explosives. It includes a body with a sample pad. First...
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7291477 |
Method and device for trichomonas detection
A method and kit for detecting Trichomonas vaginalis infection in a human subject are disclosed. In the method, a body-fluid sample such as a vaginal swab sample or urine is obtained from the...
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7288413 |
Combined chemical and immunochemical fecal occult blood test
Methods for testing a fecal sample for the presence of hemoglobin, comprising performing a chemical fecal occult blood test on the sample and then performing an immunochemical fecal occult blood...
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7285426 |
Bulking materials containing starch reagent for use in test devices
The present invention provides methods, compositions, and kits for rapid detection of analytes in a sample. Surprisingly, it has been found that bulking materials having starch reagents effectively...
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7285425 |
Assay test system for regulating temperature
A device for evaluating at least one analyte in a test sample. The device comprises a cassette having a hollow test chamber, a test strip disposed within the test chamber for receiving the test...
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7285246 |
Hand-held fluid analyzer
A hand-held device detects the presence of a preselected substance in the breath. A deformable housing forms a test chamber for interacting an indicator reagent with the breath. An ampoule...
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7285420 |
System and method for self-referencing a sensor in a micron-sized deep flow chamber
A system and method are described herein for self-referencing a sensor that is used to detect a biomolecular binding event and/or kinetics which occur in a sample solution flowing along side a...
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7276368 |
Enhanced waveguide and method
The present invention provides an optical assay apparatus that includes a light source module and an optical sensor. The light source module produces light having a range of propagation angles. The...
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7277019 |
Universal colorimetric imaging array device
An apparatus ( 10 ) is provided for detecting an atmospheric component. The apparatus, capable of being inserted into an electronic device ( 30 ) having an imager ( 36 ) and a processor, comprises...
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7273591 |
Slide cartridge and reagent test slides for use with a chemical analyzer, and chemical analyzer for same
A slide cartridge for use with a chemical analyzer includes an upper ring and a lower ring secured together but rotatable with respect to each other. The upper and lower rings define a plurality of...
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7273590 |
gravity-driven apparatus and method for control of microfluidic devices
A gravity-driven apparatus and method control the flow order of reactants in microfluidic devices which are employed in a microfluidic chip. The gravity-driven apparatus flow order control mainly...
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7270786 |
Methods and systems for processing microfluidic samples of particle containing fluids
The present invention relates to a microfluidic system for processing a cell-containing liquid. The system includes a microfabricated substrate having an enrichment channel to prepare an enriched...
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7270247 |
Storage cartridge for biosensors
A storage cartridge for dispensing biosensors used in the determination of an analyte in body fluid comprises a hollow body for housing a stack of biosensors having an open top, a flexible...
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7267797 |
Nanofabricated photon tunneling based sensor
A system and method for detecting changes in the refractive index of a fluid in a small test volume. A change in the refractive index can indicate a change in the chemical composition of the fluid....
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7264780 |
Device for taking and examining samples
The invention relates to a device for taking and examining samples, comprising a tube-shaped housing ( 50 ) in which a cartridge ( 30 ), a testing means ( 40 ) and a sample-taking means ( 10 ) are...
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7264776 |
Sanitary and compact fecal occult blood collector
A biological sample collection and test kit and a method of using the kit are disclosed in the application. The kit includes a swab, having a sample collection portion, a cover for covering the...
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7258837 |
Microfluidic device and surface decoration process for solid phase affinity binding assays
This invention provides a microfluidic device for use in the detection of one or more analytes in a fluid using solid-phase affinity binding assays. The device offers a practical, easy-to-use,...
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7259019 |
Multiple sampling device and method for investigating biological systems
Multiwell plate applications are describe for use with a plurality of fibres having an extraction phase coated thereon in combination with a positioning device. The device and method described are...
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7256053 |
Diagnostic device for analyte detection
The present invention provides a hand-held device of the type useful to perform an in vitro immunodiagnostic assay for an analyte of interest. In embodiments of the invention, the device...
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7255833 |
Apparatus and reaction vessel for controlling the temperature of a sample
This invention provides an apparatus for rapidly heating and/or cooling a sample in a reaction vessel. In some embodiments, the apparatus includes optics for the efficient detection of a reaction...
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7255832 |
Iconic colorimetric test device with reduced susceptibility to false positive and false negative readings
Laminated test devices in which positive results are detected by the appearance of a symbol on the surface of the device due to a color change in an indicator in the device are improved by placing...
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7253003 |
Method for monitoring the environment within a microfluidic device
A method and apparatus is provided for monitoring the environment within a microfluidic device. The microfluidic device includes a body defining a channel for accommodating flow of fluid...
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7250308 |
Capture assay utilising a particulate analyte
Device ( 1 ) for assaying a particulate analyte, comprising (a) a receptacle ( 2 ) for receiving a suspension ( 5 ) of particulate analyte, and containing label ( 3 ) for the particulate analyte,...
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7247498 |
Device to alternately supply a fluid to an analyzer
Apparatus and methods for supplying a portion of a fluid stream and, alternately, a fluid of known composition and concentration to an analyzer are provided. The fluid stream is directed through a...
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7244393 |
Diagnostic device and system
Diagnostic devices, systems and methods for detecting the presence of an analyte in a sample are provided. In one embodiment, the device comprises a substrate, a binder printed in a pattern onto a...
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7244394 |
Methods and kits for assays of analytes of interest in tears
The invention, in one aspect, provides a strip for tear collection. The strip has a first end and an opposite second end and preferably has substantially uniform cross-sections from the first end...
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7244392 |
Slide-in cassette for a cup for testing of drugs of abuse
A specimen cup ( 100 ) has slide-in cassette ( 102 ) hermetically sealed in a chamber ( 104 ), with a outer partition being transparent. The cassette comprised chemical test strips ( 106 ) used to...
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7244391 |
Apparatus and method for the manipulation and testing of molecules, and in particular of DNA
An apparatus for manipulating and testing molecules includes a surface to which the molecule is anchored at multiple points at one end, a paramagnetic bead on which said molecule is anchored at...
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7241417 |
Assay device
A device for carrying out a lateral flow assay on a sample comprising: (a) a sample containing unit comprising a sample container, said sample container being closed off at one end by a bottom...
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