| Entries |
| Document | Title | Date |
|---|
| 20080199971 | Integrated Membrane Sensor - An integrated microelectronic sensor is provided in a disposable flow membrane sensing device. The integrated sensors detect electromagnetic effect labels in flow detection zones above the sensor in the membrane. The labels are small particles that give off a detectable electromagnetic signal. They are commonly used for isolating and quantifying biochemical targets of interest. The sensors are fabricated using planar integrated circuit technologies. Sensors can detect labels of several types including magnetic, electric, and photonic. These types all have in common the fact that the sensor detects the label at a distance. Magnetoresistive sensors for detecting magnetic labels, and photodiodes for detecting photonic labels are described. | 08-21-2008 |
| 20090029479 | TEST STRIP AND CONNECTOR - An analyte test strip is provided that includes a generally planar substrate and a plurality of conductive areas disposed on the substrate to define five distinct conductive portions comprising at least five contact lands defining respective vertices of a polygon, and in which two contact lands are located in a single conductive portion. System and method utilizing the test strip are also described. | 01-29-2009 |
| 20090130771 | Assay device and method - An assay device includes a first reagent including a magnetic particle and a second reagent including detectable component. The first and second reagent can each independently bind to an analyte in a sample. Applying a magnetic field can selectively concentrate the detectable component in a detection zone, where a detectable change ca be measured and related to the amount of analyte in the sample. | 05-21-2009 |
| 20090155918 | METHOD AND APPARATUS FOR MONITORING BIOMETRICAL DATA - A method and apparatus suitable for monitoring biometrical data (e.g., pH level of a grape) of living organisms is disclosed. A method for monitoring biometrical data includes providing a chemical matter having a chemical agent, contacting the chemical matter with a biological matter, detecting a change in the chemical matter to produce a signal, altering the signal into an electrical signal, and obtaining biometrical data from the electrical signal. An apparatus for determining biometrics data of a living organism includes a capillary tube configured to receive fluid from the living organism, a hydrogel solution having a volume responsive to one or more characteristics of the fluid, a capacitor having at least one plate responsive to the volume of the hydrogel solution, and an inductor coupled to the capacitor. The inductor and the capacitor form a circuit having a resonant frequency. Embodiments of the present invention can advantageously provide a wireless and powerless device for determining biometrics data of living organisms. | 06-18-2009 |
| 20090170210 | MEASURING DEVICE, MEASURING APPARATUS AND METHOD OF MEASURING - The measuring device of the invention includes: a first container and a second container for holding a sample; and an optical measurement part for carrying out an optical measurement. The first container has a first sample supply inlet for supplying a sample containing an analyte to the first container and at least one electrode. The second container has a second sample supply inlet for supplying the sample to the second container and a reagent holding part for holding a reagent for the optical measurement. | 07-02-2009 |
| 20090170211 | SENSING SWITCH AND DETECTING METHOD USING THE SAME - Provided are a sensing switch and a sensing method using the same. The sensing switch includes: a substrate; a supporter on the substrate; a sensing plate that is connected to a side of the supporter and is in parallel with the substrate by a predetermined distance; a receptor binding region on an upper surface of an end portion of the sensing plate; an electric or magnetic field generation device that induces deflection of the sensing plate when a receptor bound to the receptor binding region is selectively bound to an electrically or magnetically active ligand; and a pair of switching electrodes that are separated by a predetermined distance and is connected when the sensing plate contacts the substrate due to the deflection of the sensing plate. A target material need not be labelled, a signal processing of a fluorescent or electrical detection signal using an analysis apparatus is not required, and a signal can be directly decoded by confirming whether a current flows through the switch. | 07-02-2009 |
| 20090170212 | RAPID MAGNETIC BIOSENSOR - The present invention relates to methods and (bio)sensor systems. Herein, magnetic fields are applied in order to transport magnetic particles laterally over a sensor surface with analyte specific probes. The methods of the invention allow the specific binding of magnetic particles to the sensor surface, while aspecific and unbound particles are removed. | 07-02-2009 |
| 20090209042 | CONTROLLABLE MAGNETIC SYSTEM FOR BIOSENSORS - The invention relates to a magnetic system for biosensors and in particular to a magnetic system which can switch between attraction force and repulsion force near the sensor surface with more easy but also more effective means. This is realised with at least one coil (2) and at least two ferromagnetic cores (3) which are arranged in a concentric multilayered package, and a sensor or a sensor surface exposed to or covered with the biomaterial, which is arranged near to the magnetic system. | 08-20-2009 |
| 20090258430 | Method for identifying electrophiles and nucleophiles in a sample - A method and device for identifying a molecule in a sample, the molecule comprising an electrophilic or nucleophilic moiety. The method comprises contacting the sample with a plurality of chemosensors, each of the chemosensors comprising a π-conjugated system and a moiety having a nucleophilic property or an electrophilic property; and measuring an electromagnetic property of each of the chemosensors in the sample; whereby the pattern of changes in the electromagnetic properties of the plurality of chemosensors after chemically reacting with the electrophile or nucleophile of the molecule identifies the molecule in said sample. The device comprises a substrate carrying a plurality of chemosensor molecules having at least one predetermined electromagnetic property, the at least one electromagnetic property being changeable by subjecting the chemosensor molecules to a sample containing at least one electrophile or nuclephile, wherein the pattern of change of the electromagnetic property of the plurality of chemosensor molecules allows the device to identify the electrophile or nuclephile in the sample. | 10-15-2009 |
| 20090258431 | DEVICE AND METHOD FOR PRESSURE AND FLOW CONTROL IN PARALLEL REACTORS - The present invention relates to a method and a device for the parallel study of chemical reactions in at least two spatially separated reaction spaces. In particular, the invention is suitable for reactions which are not constant volume reactions and/or for reactions in which fluid flows through at least two spatially separated reaction spaces are intended to be controlled together for all the reaction spaces, or for related subsets of them, in the most straightforward way possible. | 10-15-2009 |
| 20090263911 | End point detection method , end point detection device, and gas phase reaction processing apparatus equipped with end point detection device - The object of the present invention is to provide an end point detection method in a gas phase reaction processing apparatus. | 10-22-2009 |
| 20090280571 | MICROELECTRONIC DEVICE WITH MAGNETIC MANIPULATOR - The invention relates to a microelectronic device, particularly to a magnetic biosensor ( | 11-12-2009 |
| 20090305429 | Method for Detecting Alkylating Agents - The present invention relates to methods for detecting alkylating agents in a sample using a chemosensor and measuring the change in measurable properties of chemosensor upon binding. Such changes provide indications of the presence and quantity of alkylating agent in the sample. | 12-10-2009 |
| 20090317915 | Biochip detection device and detection method therof - The present invention provides a biochip detection device and a detection method thereof. The detection device includes a detection circuit and a biochip containing a plurality of sensor modules. Each sensor modules includes a plurality of giant magnetoresistive biosensors. The detection circuit is arranged to have an end of each biosensor and an end of each of reference sensors respectively connected to first and second voltage sources, whereby current variation induced in each biosensor can be added together. The detection method includes the steps of providing the above described biochip; carrying out surface functionalization on the biosensors; spotting surfaces of the biosensors with probe molecules corresponding to target molecules to complete molecule immobilization; applying a purified sample to the biochip so that target molecules existing in the sample bind to the probe molecules on the surfaces of the biosensors; applying detecting molecules that are combined with magnetic nano-particles to the biochip in such a way that the detecting molecules are complementary to and thus bound to the target molecules; and using the above mentioned detection circuit to supply an output of a detection current of the biosensors so that observation of variation thereof is made to determine existence of the target molecules. | 12-24-2009 |
| 20100055801 | SENSOR FOR DETECTING AND DIFFERENTIATING CHEMICAL ANALYTES - A sensor for detecting and differentiating chemical analytes includes a microscale body having a first end and a second end and a surface between the ends for adsorbing a chemical analyte. The surface includes at least one conductive heating track for heating the chemical analyte and also a conductive response track, which is electrically isolated from the heating track, for producing a thermal response signal from the chemical analyte. The heating track is electrically connected with a voltage source and the response track is electrically connected with a signal recorder. The microscale body is restrained at the first end and the second end and is substantially isolated from its surroundings therebetween, thus having a bridge configuration. | 03-04-2010 |
| 20100081206 | PASSIVE IN-SITU CHEMICAL SENSOR - A chemical sensor for assessing a chemical of interest. In typical embodiments the chemical sensor includes a first thermocouple and second thermocouple. A reactive component is typically disposed proximal to the second thermal couple, and is selected to react with the chemical of interest and generate a temperature variation that may be detected by a comparison of a temperature sensed by the second thermocouple compared with a concurrent temperature detected by the first thermocouple. Further disclosed is a method for assessing a chemical of interest and a method for identifying a reaction temperature for a chemical of interest in a system. | 04-01-2010 |
| 20100099198 | APPARATUS AND SYSTEM FOR PATTERN RECOGNITION SENSING FOR BIOMOLECULES - The present invention is an array nanopore stochastic sensing system for detection of single biomolecules and oligonucleotides. The system comprises a multi-channel system with multiple genetically modified protein pores for detection of analytes using the pattern recognition mechanism. By monitoring current blockade patterns, identity of single biomolecules can be determined in complex mixtures. | 04-22-2010 |
| 20100105147 | Corrosion Simulator And Corresponding Method - A laboratory degradation test system for testing degradation of a test specimen in a test fluid flow includes a reactor assembly, which reactor assembly comprises: a reactor vessel, the reactor vessel having a reaction space, an inlet and an outlet and a specimen holder for retaining a test specimen inside the reactor vessel, a heater for heating the reactor vessel, a fluid circulation system generating a test fluid flow over the test specimen, which fluid circulation system comprises: a circulation line which extends between the outlet of the reactor vessel and the inlet of the reactor vessel, which circulation line is arranged outside the reactor vessel, a pump for providing fluid circulation through the circulation line and the reactor vessel, which pump is arranged in the circulation line. The volume available to the test fluid inside the reaction space after insertion of the degradation test specimen is less than or equal to 10 ml. | 04-29-2010 |
| 20100173422 | METHOD OF SENSING CHEMICAL AND BIO-MOLECULAR ANALYTES AND SENSING SYSTEM USING A MICROCANTILEVER - Methods and systems of detecting analytes using a microcantilever system are generally described. The microcantilever system generally includes micro- or nano-sized elements that can be electrostatically driven to resonance. Utilizing the disclosed devices and methods, direct electronic detection of the resonant frequency, changes of the resonant frequency, and associated phase signal of a micro- or nano-sized element can be utilized to measure the presence of a targeted analyte. The detection system of the present invention utilizes a non-contact microcantilever device. That is, the surface of the microcantilever (e.g., the surface of the resonating beam) does not bond or otherwise attach to an analyte or other chemical. Thus, the microcantilever device, including the resonating beam, can be kept in pristine condition during and even after repeated use. | 07-08-2010 |
| 20100233821 | Wireless Chemical Sensor and Sensing Method for Use Therewith - A wireless chemical sensor includes an electrical conductor and a material separated therefrom by an electric insulator. The electrical conductor is an unconnected open-circuit shaped for storage of an electric field and a magnetic field. In the presence of a time-varying magnetic field, the first electrical conductor resonates to generate harmonic electric and magnetic field responses. The material is positioned at a location lying within at least one of the electric and magnetic field responses so-generated. The material changes in electrical conductivity in the presence of a chemical-of-interest. | 09-16-2010 |
| 20100261286 | Microfluidic devices and methods of preparing and using the same - Microfluidic devices include a photoresist layer in which an inlet chamber, an optional reaction chamber and at least one detection chamber are in fluid contact, a support arranged under the photoresist layer and a cover arranged above the photoresist layer. The devices further include a set of absorbent channels downstream of the last detection chamber. Biogenic or immunoreactive substances are placed in the reaction chamber and detection chamber(s). When a liquid sample is dropped into the inlet chamber, the sample liquid is drawn through the devices by capillary action. Detection methods include electrochemical detection, colorimetric detection and fluorescence detection. | 10-14-2010 |
| 20100261287 | Method and apparatus for match quality analysis of analyte binding - Described are devices and methods for detecting the match quality and concentration of analytes binding to an electrode surface. The devices utilize a clock to measure capacitance change as a function of time and a temperature controller to measure the capacitance change as a function of temperature. | 10-14-2010 |
| 20100267161 | Multi-Region and Potential Test Sensors, Methods, and Systems - Biosensor systems including a measurement device and test sensors including at least three independently addressable electrodes, with at least two of the electrodes being substantially chemically isolated are disclosed. One or more working electrodes may be combined with two or more counter electrodes. The two or more counter electrodes may operate at different potentials to provide for multi-analyte electrochemical analysis. Analysis methods are provided to perform multi-analyte electrochemical analysis and test sensors are provided having resistance to chemical mixing between secondary analysis regions. | 10-21-2010 |
| 20100267162 | METHODS FOR QUANTITATIVE TARGET DETECTION AND RELATED DEVICES AND SYSTEMS - Described herein are methods for quantitative target detection in a sample through use of microbeads and related devices and systems. | 10-21-2010 |
| 20100273269 | METHOD OF MEASURING MOLECULES IN A FLUID USING LABEL PARTICLES - The present invention provides a method of measuring the concentration of molecules in a sample fluid or analyte. Said method comprises the step of mixing the fluid with label particles within a cartridge, wherein the label particles are adapted to capture said molecules and to bind to a sensor surface of said cartridge. Then, the label particles are sedimented towards the sensor surface and the amount of label particles close to the sensor surface is measured. Subsequently, the label particles, which are not bound to the surface, are removed in a “washing” step and finally the amount of label particles close to the sensor surface is measured again. | 10-28-2010 |
| 20100273270 | MEASURING DEVICE, MEASURING APPARATUS AND METHOD OF MEASURING - The measuring device of the invention includes: a first container and a second container for holding a sample; and an optical measurement part for carrying out an optical measurement. The first container has a first sample supply inlet for supplying a sample containing an analyte to the first container and at least one electrode. The second container has a second sample supply inlet for supplying the sample to the second container and a reagent holding part for holding a reagent for the optical measurement. | 10-28-2010 |
| 20100279425 | NANOCRYSTALLINE INDIUM TIN OXIDE SENSORS AND ARRAYS - A sensor for sensing gaseous chemicals includes a substrate, a variable resistance nanocrystalline ITO thin film formed on the substrate, and electrodes electrically coupled to the thin film. A sensor array assembly includes a sensor slide and a perforated interface circuit. The interface circuit abuts and electrically couples the sensor slide. The sensor slide includes several spaced apart ITO film strips formed on a slide substrate. A common electrode is electrically coupled to a common portion of each ITO film strip providing an electrically conductive path across the common portions of each of the plurality of spaced apart ITO film strips. A discrete electrode is electrically coupled to a discrete portion of each ITO film strip. The interface circuit is configured to abut and electrically couple to the sensor slide. A conductive discrete electrode pad electrically couples each of the plurality of discrete electrodes of the sensor slide to discrete terminals on the interface circuit. A conductive common electrode pad is associated with and electrically couples the common electrode of the sensor slide to a common electrode on the interface circuit. Apertures in the interface circuit expose the thin film to the environment. Resistance changes in a detectible manner upon exposure to sensible chemicals at ambient temperature, such as 1,2,2-Trimethylpropyl methylphosphonofluoridate (soman, GD), O-Ethyl S-(2-isopropylaminoethyl) methylphosphonothiolate (VX), distilled bis(2-chloroethyl) sulfide (mustard, HD), carbonyl chloride, Phosgene (CG) and cyanogen chloride (CK), ozone, carbon monoxide, carbon dioxide, acetylene, propane, ammonia, sulfur dioxide, ethanol, methanol, volatile organic compounds and industrial toxic chemicals. | 11-04-2010 |
| 20100279426 | Electronic Switching, Memory, and Sensor Devices from Carbon Sheets on Dielectric Materials - Electronic devices comprising a dielectric material, at least one carbon sheet, and two electrode terminals are described herein. The devices exhibit non-linear current-versus-voltage response over a voltage sweep range in various embodiments. Uses of the electronic devices as two-terminal memory devices, logic units, and sensors are disclosed. Processes for making the electronic devices are disclosed. Methods for using the electronic devices in analytical methods are disclosed. | 11-04-2010 |
| 20100317124 | METAL-CONTAINING NANOMEMBRANES FOR MOLECULAR SENSING - A sensor includes a first support having at least one opening; a metal-containing nanomembrane associated with the at least one opening and configured to interact with at least one molecular species; and at least one electrode configured to sense one or more interactions of the at least one molecular species with the metal-containing nanomembrane. | 12-16-2010 |
| 20100330687 | ULTRA-SENSITIVE DETECTION TECHNIQUES - Techniques for ultra-sensitive detection are provided. In one aspect, a detection device is provided. The detection device comprises a source; a drain; a nanowire comprising a semiconductor material having a first end clamped to the source and a second end clamped to the drain and suspended freely therebetween; and a gate in close proximity to the nanowire. | 12-30-2010 |
| 20100330688 | DETECTION METHOD AND DETERMINATION METHOD FOR DETECTION TARGET - It is intended to provide a detection method and a determination method for detection target capable of detecting and determining a detection target promptly and simply with high accuracy at low cost. The detection method includes the steps of: mixing a first conjugate | 12-30-2010 |
| 20110027901 | METHODS AND DEVICES FOR DETECTING THE PRESENCE OF AN ANALYTE IN A SAMPLE - Sensor assay methods for detecting the presence of an analyte in a sample are provided. Aspects of the methods include providing a sensor, e.g., a proximity sensor, in contact with an assay composition that includes a sample and a proximity label. Next, a capture probe configured to bind to the proximity label and the analyte is introduced into the assay composition to produce a labeled analyte. Following capture probe introduction, a signal is obtained from the sensor to detect the presence of the labeled analyte in the sample. Also provided are sensor devices, including hand-held devices, and kits that find use in practicing the subject methods. | 02-03-2011 |
| 20110033947 | METHOD OF DETECTING TARGET SUBSTANCE AND TARGET-SUBSTANCE DETECTION KIT - Provided is a detection method for a target substance capable of enhancing detection sensitivity and quantitative property of a magnetic biosensor, while keeping monodispersity and dispersion stability of magnetic markers, including the steps of: reacting the target substance in a sample solution with a first target substance trapping member immobilized on a sensing element and with a second target substance trapping member immobilized on a gel particle to hold the gel particle on the sensing element; adjusting a magnetic marker precursor including the gel particle and a magnetic material precursor existing in the gel particle by bringing the magnetic material precursor into contact with the gel particle; synthesizing a magnetic material from the magnetic material precursor held on the gel particle, thereby adjusting the magnetic markers; and detecting the magnetic markers with the sensing element. | 02-10-2011 |
| 20110045601 | ORGANIC CHEMICAL SENSOR COMPRISING MICROPOROUS POLYMER, AND METHOD OF USE - Applicant discloses a sensing element for sensing an organic chemical analyte, comprising a first electrode and a second electrode, and a microporous, hydrophobic, analyte-responsive dielectric material disposed at least in proximity to the first and second electrodes. The analyte-responsive dielectric material may be a polymer of intrinsic microporosity. An electrical property of the sensing element, such as capacitance, can be monitored in order to sense an organic chemical analyte. | 02-24-2011 |
| 20110053284 | CHEMICAL FUNCTIONALIZATION OF SOLID-STATE NANOPORES AND NANOPORE ARRAYS AND APPLICATIONS THEREOF - Chemical functionalization of solid-state nanopores and nanopore arrays and applications thereof. Nanopores are extremely sensitive single-molecule sensors. Recently, electron beams have been used to fabricate synthetic nanopores in thin solid-state membranes with sub-nanometer resolution. A new class of chemically modified nanopore sensors are provided with two approaches for monolayer coating of nanopores by: (1) self-assembly from solution, in which nanopores −10 nm diameter can be reproducibly coated, and (2) self-assembly under voltage-driven electrolyte flow, in which 5 nm nanopores may be coated. Applications of chemically modified nanopore are provided including: the detection of biopolymers such as DNA and RNA; immobilizing enzymes or other proteins for detection or for generating chemical gradients; and localized pH sensing. | 03-03-2011 |
| 20110059544 | OLFACTORY RECEPTOR-FUNCTIONALIZED TRANSISTORS FOR HIGHLY SELECTIVE BIOELECTRONIC NOSE AND BIOSENSOR USING THE SAME - In accordance with an aspect of the present invention, there is provided a transistor including: a substrate; a source electrode and a drain electrode formed being spaced apart from each other on the substrate; a nanostructure electrically contacted with and formed between the source electrode and the drain electrode; and a lipid membrane having an olfactory receptor protein which is formed to cover surfaces of the source electrode, the drain electrode, and the nanostructure. The olfactory receptor-functionalized transistor in accordance with an aspect of the present invention is useful for a bioelectronic nose which can detect odorants highly specifically with femtomolar sensitivity, and may be applied in various fields requiring the rapid detection of specific odorants, for example, anti-bioterrorism, disease diagnostics, and food safety. | 03-10-2011 |
| 20110111516 | SURFACE ACOUSTIC WAVE SENSOR SYSTEM FOR USING OSCILLATION METHOD AND SENSING METHOD USING THE SAME - Provided is a surface acoustic wave sensor system, in which multiplexers are connected to input and output terminals of a plurality of surface acoustic wave devices through one feedback loop, and thus one oscillation channel is configured. Such a surface acoustic wave sensor system can prevent errors caused by deviations between oscillators, and thus sensitivity and reproducibility can be improved. | 05-12-2011 |
| 20110151574 | DETECTION OF TRACE CHEMICALS AND METHOD THEREFOR - The invention provides devices, systems, and methods for detecting an analyte vapor. Particularly, electronegative analyte vapors, such as those vapors evolving from explosive compounds, are typical analytes detected the devices. The devices operate using a resistivity change mechanism wherein a nanostructured chemiresistive material undergoes a resistivity change in the presence of an analyte vapor. A resistivity change indicates the presence of an analyte. | 06-23-2011 |
| 20110189783 | APPARATUS AND ASSOCIATED METHODS - An apparatus comprising a nanowire waveguide with first and second ends, the second end comprising a nanoparticle, the nanowire waveguide configured to transmit radiation from the first end to the second end to illuminate the nanoparticle, the apparatus configured such that the nanoparticle is capable of being in close proximity to an analyte to allow for detection of said analyte. | 08-04-2011 |
| 20110195515 | Capillary Plate and Method for Growth and Analysis of Macromolecular Crystals - A capillary plate and method for growing macromolecular crystals using the capillary plate. The capillary plate allows proteins and other macromolecules to be crystallized in the counter-diffusion method in a restricted geometry. Using this procedure, crystals can be adequately prepared for direct X-ray data analysis such that the macromolecule's three-dimensional structure can be solved without crystal manipulation. | 08-11-2011 |
| 20110212535 | APPLICATIONS AND METHODS OF OPERATING A THREE-DIMENSIONAL NANO-ELECTRO-MECHANICAL RESONATOR AND RELATED DEVICES - Carbon nanofiber resonator devices, methods for use, and applications of said devices are disclosed. Carbon nanofiber resonator devices can be utilized in or as high Q resonators. Resonant frequency of these devices is a function of configuration of various conducting components within these devices. Such devices can find use, for example, in filtering and chemical detection. | 09-01-2011 |
| 20110263036 | AMORPHOUS THIN FILM FOR SENSING - An apparatus and method for low-power sensing, for example, sensing of chemical or biochemical analytes in a gas or liquid phase are disclosed. One aspect relates to the use of a thin continuous film without grain boundaries as a sensing layer in devices for sensing a predetermined analyte and to low power devices having such sensing layer. The sensing layer has a surface exposed to the analyte. The electrical impedance of the sensing layer changes upon adsorption of the predetermined analyte on the exposed surface of the sensing layer. The sensing layer may have a thickness in the range between about 1 nm and 100 nm, such as between about 1 nm and 30 nm. The sensing layer may be an amorphous layer. | 10-27-2011 |
| 20120028365 | PORTABLE BIOCHEMICAL TESTING APPARATUS AND OPERATING METHOD THEREOF - A portable biochemical testing apparatus and operating method thereof are disclosed. The portable biochemical testing apparatus includes a light source module, a sample module, a photoconductive material layer, a touch module, and a control module. At least one sample is disposed in the sample module. The photoconductive material layer is disposed between the sample module and the light source module. The touch module generates a driving signal according to a touch action of the user to drive the light source module to emit a light. When the light is emitted to the photoconductive material layer, the photoconductive material layer will generate a photoelectric driving effect. The at least one sample is affected by the photoelectric driving effect and generates a change corresponding to the touch action. | 02-02-2012 |
| 20120100626 | Apparatus and Associated Methods - An apparatus comprising a processor and memory including computer program code. The memory and computer program code can be configured to, with the processor, cause the apparatus to illuminate one or more sensor elements with electromagnetic radiation emitted from corresponding regions of an electronic display. The one or more sensor elements can be configured to exhibit a specific electrical response to the illumination when a specific set of analytes are bound to the one or more sensor elements, determine the electrical response of the one or more sensor elements, and compare the determined electrical response with one or more predetermined electrical responses to determine a match. Each predetermined electrical response can be associated with the binding of a different set of analytes, wherein determination of a match allows the specific set of analytes bound to the one or more sensor elements to be identified. | 04-26-2012 |
| 20120100627 | MEASUREMENT DEVICE USED FOR SPECIFICALLY DETECTING SUBSTANCE TO BE EXAMINED USING PHOTOCURRENT, SENSOR UNIT USED FOR SAME, AND METHOD FOR SPECIFICALLY DETECTING SUBSTANCE TO BE EXAMINED USING PHOTOCURRENT - In utilizing photocurrent generated in the photoexcitation of a dye in specific detection of an analyte, highly accurate detection can be realized by discharging charged current generated in the formation of a sensor unit and, in the detection of photocurrent of a plurality of detection spots provided on a working electrode, discharging photocurrent which is derived from a detection spot subjected to the latest photocurrent measurement and becomes noise current. The present invention provides a measuring apparatus comprising a sensor unit comprising a working electrode, a counter electrode, and an electrolyte-containing substance, a single or plurality of light sources that apply light to the working electrode, an XY moving device provided when the light source is moved relatively in an XY direction relative to the working electrode, an ammeter that measures current which flows across the working electrode and the counter electrode, and a discharge device that discharges charged current and photocurrent derived from a detection spot subjected to the latest photocurrent measurement. The specific detection method using the measuring apparatus is carried out by controlling the timing of light irradiation and the timing of connection to the ammeter and the discharge device. | 04-26-2012 |
| 20120107948 | LUMINESCENT CHEMICAL SENSOR INTEGRATED WITH AT LEAST ONE MOLECULAR TRAP - A luminescent chemical sensor integrated with at least one molecular trap. The luminescent chemical sensor includes at least one molecular trap and at least one metallic-nanofinger device integrated with at least one molecular trap. The molecular trap includes a plurality of electrodes that trap at least one analyte molecule. The metallic-nanofinger device includes a substrate, and a plurality of nanofingers coupled with the substrate. A nanofinger of the plurality includes a flexible column, and a metallic cap coupled to an apex of the flexible column. At least the nanofinger and a second nanofinger of the plurality of nanofingers are to self-arrange into a close-packed configuration with the analyte molecule. A method for using, and a chemical-analysis apparatus including the luminescent chemical sensor are also provided. | 05-03-2012 |
| 20120149123 | Low Temperature Method to Enhance Detection of Magnetic Beads - Detection of magnetic beads at temperature below room temperature can increase the signal level significantly as compared to the same detection when performed at room temperature. Additional improvement is obtained if the beads are below 30 nm in size and if deviations of bead size from the median are small. A preferred format for the beads is a suspension of super-paramagnetic particles in a non-magnetic medium. | 06-14-2012 |
| 20120214249 | OPTICAL GAS SENSOR FOR USE WITH ELECTRICAL EQUIPMENT AND METHODS OF ASSEMBLING SAME - A method and apparatus for detecting a gas in electrical equipment by coupling a gas detection device to the electrical equipment is provided. The method includes providing an electro-magnetic source, positioning an electro-magnetic detector to receive light emitted from the electro-magnetic source, and positioning a membrane between the electro-magnetic source and the electro-magnetic detector, such that the electro-magnetic detector only receives light from the electro-magnetic source that has been transmitted through the membrane. The method also includes detecting at least one gas, such that detection of at least one gas includes preventing or allowing communication of the electro-magnetic source and the electro-magnetic detector, and emitting a signal, by the electro-magnetic detector, in response to the detection of the at least one gas. | 08-23-2012 |
| 20120220041 | Organic Chemical Sensor Apparatus, Method, and System - An organic chemical sensor includes a dielectric core that comprises an elastomer and a high dielectric constant material. The elastomer absorbs an organic chemical to be sensed. An electrically conductive layer is secured to a first side of the dielectric core. A permeable conductive layer is secured to a second side of the dielectric core. The permeable conductive layer is electrically conductive and permeable to the organic chemical to be sensed. The absorption of the organic chemical to be sensed by the elastomeric layer causes a decrease in the capacitance between the electrically conductive layer and the permeable conductive layer. | 08-30-2012 |
| 20130040399 | Airborne Contaminant Sensor Device and Method for Using the Same - The present invention is a nanotechnology-based personal sensor device composed of molecularly imprinted polymers that are interrogated using radio frequency identification (RFID) technology for use in simultaneously monitoring airborne contaminants, e.g., of second-hand cigarette smoke. | 02-14-2013 |
| 20130059396 | PHOTOELECTROCATALYTIC FLUID ANALYTE SENSORS INCLUDING REFERENCE ELECTRODES, AND METHODS OF FABRICATING AND USING SAME - Fluid analyte sensors include a photoelectrocatalytic element that is configured to be exposed to the fluid, if present, and to respond to photoelectrocatalysis of at least one analyte in the fluid that occurs in response to impingement of optical radiation upon the photoelectrocatalytic element. A semiconductor light emitting source is also provided that is configured to impinge the optical radiation upon the photoelectrocatalytic element. Related solid state devices and sensing methods are also described. | 03-07-2013 |
| 20130102085 | METHOD OF SENSING A MOLECULE, AN APPARATUS AND A SEMICONDUCTOR CHIP THEREFOR - A semiconductor chip, apparatus, and associated method wherein the semiconductor chip, having at least one electrode and configured as a sensor such as a biosensor, is removably attachable to a tip of a dipstick. The dipstick tip, with the attached semiconductor chip, is arranged to be dipped into a well containing an analyte. The well may be part of a micro-titre plate. The chip electrically senses the presence of a target molecule in the analyte. The sensing may be by detecting a change in capacitance associated with the electrode which occurs in the presence of the target molecule. The apparatus may include plural dipsticks and associated semiconductor chips which are sensitive for different target molecules. Alternatively or in addition, a single semiconductor chip may have a plurality of electrodes, which may be sensitive to different target molecules. | 04-25-2013 |
| 20130115708 | Systems and Methods for Measuring Particle Accumulation on Reactor Surfaces - Systems and methods for monitoring a particle/fluid mixture are provided. The method can include flowing a mixture comprising charged particles and a fluid past a particle accumulation probe. The method can also include measuring electrical signals detected by the probe as some charged particles pass the probe without contacting the probe while other charged particles contact the probe. The measured electrical signals can be manipulated to provide an output. The method can also include determining from the output if the charged particles contacting the probe have, on average, a different charge than the charged particles that pass the probe without contacting the probe. | 05-09-2013 |
| 20130236981 | Detection Of Chronic Kidney Disease And Disease Progression - The present invention provides a sensor or a system comprising gold nanoparticles coated with specific organic coatings for diagnosing, staging or monitoring chronic kidney disease. | 09-12-2013 |
| 20130260472 | APPARATUS AND METHOD FOR MOLECULAR SEPARATION, PURIFICATION, AND SENSING - Described are devices and methods for forming one or more nanomembranes including electroactive nanomembranes within a nanowell or nanotube, or combinations thereof, in a support material. Nanopores/nanochannels can be formed by the electroactive nanomembrane within corresponding nanowells. The electroactive nanomembrane is capable of controllably altering a dimension, a composition, and/or a variety of properties in response to electrical stimuli. Various embodiments also include devices/systems and methods for using the nanomembrane-containing devices for molecular separation, purification, sensing, etc. | 10-03-2013 |
| 20130267033 | Detection cell with controlled power dissipation - A voltage control circuitry for a detection cell ( | 10-10-2013 |
| 20140004617 | Radiation Generator Including Sensor To Detect Undesirable Molecules And Associated Methods | 01-02-2014 |
| 20140065719 | DETECTION METHOD FOR SUBSTANCE AND SYSTEM THEREOF - A detection method for a substance and a system thereof are provided. The detection method for a substance contained in a sample includes providing a reagent in reaction with the substance to form a chelate; and pressurizing the substance to accumulate the chelate. | 03-06-2014 |
| 20140099729 | Methods and Apparatus for Artificial Olfaction - In exemplary implementations of this invention, an electronic olfactor determines whether a scent being tested matches the scent of a positive control. The electronic olfactor can perform this scent matching even in a changing olfactory environment, and even if the positive control scent is a combination of hundreds or thousands of different odorants. No prior training is needed, and no attempt is made to identify a single odorant that is unambiguously responsible for a scent. Instead, a computer compares the total scent pattern of a positive control sample with the total scent pattern of a test sample, across a sweep of many permutations of electrical inputs to scent sensors, to try to find any condition under which the total scent patterns do not match. If such a condition cannot be found, then the computer declares a match between the test and target scents. | 04-10-2014 |
| 20140273263 | DIAGNOSTICS FOR CATALYTIC STRUCTURES AND COMBUSTIBLE GAS SENSORS INCLUDING CATALYTIC STRUCTURES - A combustible gas sensor for detecting a combustible analyte includes a first sensing element including a first conductive element in electrical connection with an electronic circuitry, a first support structure in operative connection with the first conductive element, a catalyst supported on the first support structure for catalyzing a reaction of the analyte, and a system for measuring a variable related to the reactance of the first sensing element. Changes in the measured variable over time provide an indication of an operational status of the first sensing element. | 09-18-2014 |
| 20140349408 | AUTOMATED STATIONARY GAS SENSOR CALIBRATION SYSTEM AND METHOD - A stationary gas monitoring and testing system includes one or more gas monitoring stations | 11-27-2014 |
| 20150024507 | BIOMARKER SENSING BASED ON NANOFLUIDIC AMPLIFICATION AND RESONANT OPTICAL DETECTION - Provided is a sensor platform that includes a substrate, a plurality of nanochannels disposed on the substrate, and a plurality of electrodes, a waveguide disposed on the substrate and an analysis chamber and a reference chamber disposed on the substrate. Each electrode extends substantially across a width of the plurality of nanochannels. At least one analysis optical resonator is disposed in the analysis chamber and is optically coupled to at least a portion of the waveguide. The at least one analysis optical resonator is in fluid communication with at least one of the plurality of nanochannels. At least one reference optical resonator is disposed in the reference chamber and is optically coupled to at least a portion of the waveguide. The at least one reference optical resonator is in fluid communication with at least one other of the plurality of nanochannels. | 01-22-2015 |
| 20150064798 | ORGANIC THIN-FILM TRANSISTOR SENSOR ARRANGEMENTS - A sensor includes an organic thin-film transistor (OTFT) that operates under low voltage conditions in an aqueous environment. According to an example embodiment, an OTFT includes an organic channel that electrically connects source and drain electrodes, with a gate electrode separated from the channel by a dielectric layer. The channel, gate and dielectric layer are arranged to facilitate switching of the channel region to pass current between the source and drain electrodes, in response to a low voltage applied to the gate electrode, when the channel is exposed to an aqueous solution. The current that is passed is indicative of characteristics of the aqueous solution, and is used to characterize the same. For various implementations, the low voltage operation of the sensor facilitates such characterization with substantially no ionic conduction through an analyte in the aqueous solution. | 03-05-2015 |
| 20160038908 | METHOD AND SYSTEM FOR FLAMMABLE GAS DETECTION - The present disclosure relates to a nanostructured palladium-based flammable gas detector synthesized using sonochemistry. The nanostructured palladium-based flammable gas detectors may use nanostructured sensing materials to allow reduction of power consumption, where the nanostructures reduce power consumption due to their large specific area and increased porosity. The nanostructures may increase the number of active sensing sites, allowing the surface energy to be high enough for sensing reactions to occur without requiring significant external thermal energy, | 02-11-2016 |
| 20160178603 | COMPOSITE MATERIAL WITH FAILURE DETECTION PROPERTIES | 06-23-2016 |
