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7588727 |
Microfluidic chip
A microfluidic chip on a transparent substrate includes microchannels, and an electric layer having a heater and a sensor layout on the microchannel nearby and aside for supplying heat source and...
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7588726 |
Vapor analysis apparatus and method
A vapor analysis system comprising a vapor analyzer capable of collecting and analyzing a vapor sample for detection of a compound that may be contained within the vapor sample. A controller is...
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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...
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7565273 |
Determination of the age, identification and sealing of a product containing volatile components
The invention concerns a method and system for determining the age of an object such as a product containing volatile components, comprising: measuring a first strength of a first scent with a...
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7556775 |
Microelectro-mechanical chemical sensor
A microelectro-mechanical chemical sensor includes an active cantilever beam having a chemically selective material layer disposed thereon and at least one, preferably two, resistors with the...
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7537737 |
Installation structure for gas sensor
An installation structure for a gas sensor capable of detecting gas concentration in a highly accurate manner is provided. The installation structure for a gas sensor which detects concentration of...
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7534394 |
Potentiometric titration method for quantitative determination of hydrogen peroxide
An electrochemical potentiometric titration method that entails titration of a known volume of a catholyte containing an unknown amount of hydrogen peroxide in a titration cell having two...
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7531137 |
Substance detection system
A substance detection system having an electronic nose and classifier. The system may extract feature from the electronic signals representing the smells from the electronic nose sensing an unknown...
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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...
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7514269 |
Precision adaptable chemical spectrometer
The invention is directed to a spectrometer for measuring submillimeter absorption. The spectrometer may include a solid state exciter generating a submillimeter wave and sweeping a predetermined...
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7513983 |
Insulator electrode devices
Methods and insulator electrode devices for performing electrochemical reactions are disclosed. The devices consist of high specific surface area electrodes based on a channeled conducting base...
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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...
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7487662 |
Volatile organic compound sensor system
Generally, this invention relates to the development of field monitoring methodology for new substances and sensing chemical warfare agents (CWAs) and terrorist substances. It also relates to a...
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7465425 |
Sensor and method for detecting analytes in fluids
A fluid sensor is constructed to has a pair of electrodes whereas between electrodes there are not additional materials designated to adsorb analytes if their concentrations are high, or there are...
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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...
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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....
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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...
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7402284 |
Orientation device for a gas analyzer
A method and apparatus for determining the orientation of a gas analyzer. Because condensation can build-up in a filter of the gas analyzer, it needs to be purged from the analyzer so that accurate...
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7393505 |
Proton conductor gas sensor
A proton conductor gas sensor whose durability at high temperature is enhanced by using gel not converted to sol even at high temperature in a water reservoir. Fine particles of silica are gelled...
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7387010 |
Sensor arrangement having sensor array provided on upper portion of a container
A chemical sensing system has: an interrogation unit operable to wirelessly transmit an interrogation signal and wirelessly receive a response; an environmentally sealed container for holding a...
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7367221 |
Sensor for detection of liquid ingredients, particularly for biological materials and the detection device contained in the sensor
This invention relates to a sensor for the detection of liquid ingredients with a carrier element ( 10 ), a sensor element ( 1 ) on the carrier element ( 10 ) and a sensor array, which is disposed...
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7357015 |
Gas concentration sensor, hydrogen purification unit using this and fuel cell system
In order to provide a step capable of reliably detecting a CO concentration in a reformed gas at low cost and a hydrogen purifier capable of fully exerting a function of a CO purifying catalyst, a...
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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...
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7344678 |
Composite sensor membrane
A sensor may include a membrane to deflect in response to a change in surface stress, where a layer on the membrane is to couple one or more probe molecules with the membrane. The membrane may...
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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 )...
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7338812 |
Biochemical labeling materials and manufacturing method thereof
A biochemical labeling material and manufacturing method thereof. The manufacturing method provides a plurality of nanoparticles, bonding the nanoparticles to template molecules by molecular...
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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.
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7333204 |
Method and device for analysing a gas likely to contain particles or suspended aerosols
The present method uses a spectrophotometric and/or ionisation detection device in which the gas to be analyzed and illuminated by a light source emitting in a range of wavelengths distinct from...
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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...
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7323343 |
Nitrogen monoxide, nitrogen dioxide and ozone determination in air
An analytical system is provided for determining nitrogen monoxide, nitrogen dioxide and ozone concentrations in air samples. An ultraviolet light source 4 is used to alter the equilibrium...
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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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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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7312095 |
Modification of selectivity for sensing for nanostructure sensing 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...
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7297549 |
Method of determining measurement bias in an emissions monitoring system
A method of determining bias in a measurement of a constituent concentration level in a sample gas is provided. The method comprises establishing a sample gas flow from an emission stream into a...
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7297312 |
Simultaneous multianalyte electrochemical assay based on spatial resolution
A simultaneous multianalyte electrochemical assay includes a cell which has a surface and the surface includes analyte binding sites i.e., antibodies or antigens on a solid phase at distinct...
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7294249 |
Microfluidic component and method for sorting particles in a fluid
Microtechnologically prepared component as a flow cytometer. The component contains a preparation area to specifically influence and separate the particles, preferably by dielectrophoresis, a...
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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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7286942 |
System and method of fluctuation enhanced gas-sensing using saw devices
A system and method of fluctuation enhanced gas-sensing using SAW devices includes processes for improved chemical analyte detection, identification, and quantification through the measurement and...
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7279133 |
Planar sensor and a method for measuring the temperature of same
In a planar oxygen sensor having a pump cell, a reference cell, a sensor chamber and a heating device, a ground plane electrode is provided and includes a sensing portion having a first sense lead...
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7265560 |
Temperature compensated vapor sensor
A chemiresistor sensor system that compensates for changes in resistance caused by changes in ambient temperature, thereby increasing the accuracy of the sensor system's ability to detect target...
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7264778 |
Carbon monoxide sensor and method of use thereof
Carbon monoxide sensors suitable for use in hydrogen feed streams and methods of use thereof are disclosed. The sensors are palladium metal/insulator/semiconductor (Pd-MIS) sensors which may...
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7258774 |
Microfluidic devices and methods of use
A microfluidic device comprises pumps, valves, and fluid oscillation dampers. In a device employed for sorting, an entity is flowed by the pump along a flow channel through a detection region to a...
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7255836 |
Analytical sensitivity enhancement by catalytic transformation
A device and method for quantifying an impurity in an input gas stream. The device and method employ a catalyst to convert the impurity to a detectable species in an output gas stream, and the...
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7254984 |
Sensor
A sensor for measuring a physical property of a measuring gas, in particular the oxygen concentration or the temperature in the exhaust gas of an internal combustion engine in a motor vehicle, has...
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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...
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7235214 |
System and method for measuring molecular analytes in a measurement fluid
A molecular contamination monitoring system includes a piezoelectric measurement sensor exposed to a molecular constituent to be measured; a piezoelectric reference sensor; and a filter for...
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7223608 |
Resonance-enhanced dielectric sensing of chemical and biological species
A dielectric sensing method and apparatus are provided for detection and classification of chemical and biological materials. Resonance patterns of a sample within a resonator are detected for...
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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...
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7223367 |
Chemical sensor arrangement
The present invention relates to a chemical sensor arrangement having an analyte sensitive indicator wherein the analyte sensitive indicator has at least one nanoparticle. The invention further...
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7223328 |
Sensors for reducing gas molecules
Provided is a gas molecule sensor, characterized in that the sensing element is a polycrystalline tin oxide film having a thickness less than 1 μm. The sensing element is produced by electrolytic...
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