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7615376 Masking background fluorescence and luminescence in the optical analysis of biomedical assays  
In a process for the quantitative optical analysis of fluorescently labelled biological cells 5 , a cell layer on a transparent support at the bottom 2 of a reaction vessel 1 is in contact...
7585682 Magnetic in situ dilution  
The invention involves methods, assays, and components for the detection and analysis of binding between biological or chemical species, and can specifically be used for drug discovery. In an...
7575933 Modification of selectivity for sensing for nanostructure device arrays  
An electronic system for selectively detecting and identifying a plurality of chemical species, which comprises an array of nanostructure sensing devices, is disclosed. Within the array, there are...
7531136 Chemical sensor  
The application relates to a chemical sensor device comprising a substrate ( 1 ), a sensor medium ( 3 ) formed on the substrate, the sensor medium comprising one-dimensional nanoparticles, wherein...
7504262 High sensitivity biomolecule detection with magnetic particles  
The present invention generally relates to the field of biomolecule detection. More specifically, the present invention relates to compositions, methods and systems for the detection and...
7501091 Sensors with improved properties  
A sensor or a sensor array connected to an electrical measuring apparatus is disclosed. In one embodiment, at least one sensor contains a layer of conductive modified particles which forms an...
7495300 Gas-sensing semiconductor devices  
A gas-sensing semiconductor device is fabricated on a silicon substrate having a thin silicon oxide insulating layer in which a resistive heater made of a CMOS compatible high temperature metal is...
7494816 System and method for determining a temperature during analyte measurement  
A method of measuring an analyte in a biological fluid comprises applying an excitation signal having a DC component and an AC component. The AC and DC responses are measured; a corrected DC...
7488991 Molecular controlled semiconductor device  
A semiconductor sensing device for sensing presence, absence or level of species-of-interest in the environment is disclosed. The semiconductor sensing device comprises at least one layer of...
7488601 System and method for determining an abused sensor during analyte measurement  
A method of measuring an analyte in a biological fluid comprises applying an excitation signal having a DC component and an AC component. The AC and DC responses are measured; a corrected DC...
7459312 Photodesorption in carbon nanotubes  
Carbon nanotube devices are manipulated in a manner that is useful for a variety of implementations. According to an example embodiment of the present invention, light ( 632 ) is used to...
7455979 Polysaccharide structure and sequence determination  
The invention provides a method for the structural analysis of a saccharide, comprising: a) providing on a surface a plurality of essentially sequence- and/or site-specific binding agents; b)...
7442555 Ammonia gas sensor method and device  
A mixed potential sensor device and methods for measuring total ammonia (NH 3 ) concentration in a gas is provided. The gas is first partitioned into two streams directed into two sensing chambers....
7416699 Carbon nanotube devices  
Nanotubes and nanotube-based devices are implemented in a variety of applications. According to an example embodiment of the present invention, a nanotube is adapted to pass current between two...
7407811 System and method for analyte measurement using AC excitation  
A method of measuring an analyte in a biological fluid comprises applying an excitation signal having a DC component and an AC component. The AC and DC responses are measured; a corrected DC...
7404928 Thiol terminated monodisperse ethylene oxide oligomer capped gold nanoclusters  
A thiol terminated ethylene oxide oligomer and the method of substituting the oligomer onto a gold nanocluster surface using a thiol-exchange reaction to form a charge-neutral, non-ionizable, water...
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...
7391225 Carbon nanotube sensor and apparatus and method for detecting change time of engine oil for automobile using the same  
A system and method for determining the time to change the oil of an automobile engine including a power source unit for converting power into necessary power and supplies power at the startup...
7374942 Process and apparatus for the combinatorial production and testing of catalyst material libraries by using at least two analytical methods  
A process and apparatus for testing material libraries, in particular catalysts, by means of coupled use of at least two analytical methods, preferably IR thermography and mass spectrometry. Owing...
7354770 Sensing device and method using photo-induced charge movements  
A device and method which comprises a sensing surface on a membrane, solid surface or electrode, where the sensing surface contains a dye or chromophore chosen in relation to a particular target...
7347974 Materials, method and apparatus for detection and monitoring of chemical species  
A method for investigating a target environment to determine whether or in what amount a chemical species may be present therein, which comprises: (a) exposing to said environment an article of...
7341694 Ammonia sensor  
In an ammonia sensor ( 1 ), lead portions ( 7 ) and ( 9 ) are provided on an insulating substrate ( 5 ); a pair of comb-shaped electrodes ( 11 ) and ( 13 ) are connected to the lead portions ( 7 )...
7338811 Integrated circuit chip for bioassays  
The invention is directed to novel IC chips containing substances used particularly in bioassays. Furthermore, the invention is directed to assay methods and kits using these chips.
7338639 System and method for analyte measurement  
A method of measuring an analyte in a biological fluid comprises applying an excitation signal having a DC component and an AC component. The AC and DC responses are measured; a corrected DC...
7329389 Sensor device and method for qualitative and quantitative analysis of gas phase substances  
New sensors and methods for qualitative and quantitative analysis of multiple gaseous substances simultaneously with both high selectivity and high sensitivity are provided. The new sensors rely on...
7314761 Leak sensor for flowing electrolyte batteries  
A leak detection system for a flowing electrolyte battery comprising a containment member associated with at least one of a stack of a flowing electrolyte battery and an electrolyte reservoir of a...
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...
7291310 Microsystem for determining clotting time of blood and low-cost, single-use device for use therein  
A microsystem for determining clotting time of blood and a low-cost, single-use device for use therein are provided wherein the device has no moving parts or expensive optical sensors or magnets....
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...
7247494 Scanner with array anti-degradation features  
A reader is provided that, itself, addresses the issue of damage or degradation to arrays within the reader by virtue of air exposure. In doing so, experimental variability is reduced, and...
7247485 Karl Fischer reagent  
Karl Fischer reagent comprising iodide, sulphur dioxide with an initial concentration above 0.5 M, and imidazole/imidazole derivative dissolved in alcoholic solvent, whereby the molar ratio between...
7247271 Compact ceramic sensor for fuel volatility and oxygenate concentration  
A compact ceramic fuel property sensor comprises a plurality of laminated ceramic layers. The heater, temperature sensor, and capacitance measurement electrodes are embedded between the layers. The...
7226563 Ion-detecting sensors comprising plasticizer-free copolymers  
Plasticizer-free ion-detecting sensors for detecting a target ion in a sample are provided. The sensor comprises a plasticizer-free copolymer comprised of polymerized units of methacrylate monomers...
7223607 Process and device for the detection of hydrocarbons in a gas  
The invention relates to a process for the detection of hydrocarbons other than methane in a gas predominantly or essentially comprising oxygen, as well as methane and the said hydrocarbons other...
7211439 Selective chemical sensors based on interlinked nanoparticle assemblies  
The invention relates to a nanoparticle film comprising a nanoparticle network formed of nanoparticles interlinked by linker molecules. The linker molecules have at least two linker units that can...
7208322 Sensor surfaces for detecting analytes  
The present invention provides a sensor surface comprising: a substrate coated with a free electron metal; and a matrix layer disposed on the free electron metal, wherein the matrix layer comprises...
7205153 Analytical reagent for acid copper sulfate solutions  
Embodiments of the invention provide an analytical method and analytical reagent solutions for determining the concentration of electrolyte components, such as copper, acid and chloride...
7201876 Ion-detecting sensors comprising plasticizer-free copolymers  
Ion-detecting sensors for detecting a target ion in a sample are provided. The sensor comprises a plasticizer-free copolymer comprised of polymerized units of methacrylate monomers having pendent...
7195923 Ratiometric determination of glycated protein  
The present invention provides methods for determining a ratio of an amount of a glycated form of a protein to a total amount of the protein in a sample containing the glycated protein, the...
7189503 Characterization of individual polymer molecules based on monomer-interface interactions  
The invention relates to a method for detecting a double-stranded region in a nucleic acid by (1) providing two separate, adjacent pools of a medium and a interface between the two pools, the...
7189315 Ion sensor and clinical analyzer using the same  
An ion sensor has a flow path through which a sample flows. An ion-exchange membrane is in contact with the sample in the sample flow path. An internal solution is provided on one side of the...
7183117 Apparatus for measuring characteristics of chemical solution, chemical solution supply apparatus, and method for measuring concentration of chemical solution  
A supply apparatus for preparing a mixed chemical solution of a predetermined mixing ratio at a low cost and for supplying the mixed chemical solution stably. The supply apparatus includes a...
7179659 Sensor surfaces for detecting analytes and methods of use  
The present invention provides a method for detecting an analyte, comprising providing a sensor comprising a substrate coated with a free electron metal, a matrix layer disposed on the free...
7179605 Fibronectin precursor biopolymer markers indicative of alzheimer's disease  
The instant invention involves the use of a combination of preparatory steps in conjunction with mass spectroscopy and time-of-flight detection procedures to maximize the diversity of biopolymers...
7169618 Magnetic particles and methods of producing coated magnetic particles  
An improved method for separating materials is provided, using colloidal, magnetizable aggregates, optionally silanized, and coated with a one or more layers of novel polysaccharide derivatives....
7153693 Method and apparatus for determining urea concentration  
A method for determining a urea concentration in an aqueous solution containing urea, includes: hydrolyzing the urea in the aqueous solution, measuring an electric conductivity χ of the aqueous...
7150997 Multiplexed active biologic array  
A method of addressing and driving an electrode array includes the step of addressing one or more electrodes within the array using a plurality of row and column lines. In one aspect of the method,...
7138280 Masking of the background fluorescence and luminescence in the optical analysis of biomedical assays  
In a process for the quantitative optical analysis of biological cells labelled with a fluorescent dye, the sensitivity of analytical detection can be considerably improved if a masking dye, which...
7135297 Protein biopolymer markers indicative of insulin resistance  
The instant invention involves the use of a combination of preparatory steps in conjunction with mass spectroscopy and time-of-flight detection procedures to maximize the diversity of biopolymers...
7129095 Method and system for using a weighted response  
The present invention is related to the sensing of analytes and in particular, to methods of determining, resolving, identifying, or quantitating such analytes once detected. This invention...
Matches 1 - 50 out of 316 1 2 3 4 5 6 7 >