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6620315 System for optimized control of multiple oxidizer feedstreams  
This invention is directed to a method and apparatus for controlling and optimizing the feed of two or more oxidizers to an aqueous stream, thereby providing a synergistic effect. The system...
6613379 Implantable analyte sensor  
An insertable analyte needle sensor, comprising a set of fine wires positioned together and a dielectric material covering a substantial portion of the fine wires but defining an opening filled...
6607642 Electrochemical gas sensor with diamond-like carbon electrodes  
An electrochemical gas sensor (1) is disclosed with a plurality of electrodes (2, 3, 4). The sensor has substantially reduced cross sensitivity with respect to interfering gases. At least the...
6592746 Sensor probe for determining hydrogen peroxide concentration and method of use thereof  
A sensor probe is disclosed which can measure the hydrogen peroxide content of a single sample using two oxygen sensors whose electrodes are encased in defined membranes. The oxygen reference...
6582583 Amperometric biomimetic enzyme sensors based on modified cyclodextrin as electrocatalysts  
The present invention provides a novel biosensor for the detection of chemicals of interest. The novel biosensor of the present invention comprises an electrode having a catalytically active...
6579432 Protection of gas communication in an electrochemical sensor  
An electrochemical sensor for detection of a gas in an atmosphere containing the gas. The sensor has a housing having an electrochemical gas sensor with an electrolyte and at least two electrodes,...
6579433 Electrochemical measuring cell for detecting hydrocyanic acid  
An electrochemical measuring cell for detecting hydrocyanic acid is improved in such a manner that a stable measurement signal is provided after a short time. The measuring cell includes a...
6573109 Surface amplifier  
The present invention relates to a membrane for use in detecting the presence of an analyte. The membrane comprises an array of closely packed self-assembling amphiphilic molecules and a plurality...
6572748 Reference electrode  
A reference electrode (1) for electrochemical measurements includes a metallic palladium-containing electrode component (3) which is covered by a layer (4) formed of or containing a palladium...
6562208 Gas sensors  
A combined toxic gas sensor and an oxygen sensor includes a sensor body 1 with a top plate 2 provided with a toxic gas diffusion barrier 3 leading to a chamber 7 from having an outlet aperture 5...
6562211 Membrane probe for taking samples of an analyte located in a fluid medium  
The inventive prove (10) for taking samples of an analyte located in the fluid medium has a membrane which closes the probe (10) to the outside and which is permeable to the analyte, a...
6558519 Gas sensors  
A gas sensor including a housing containing at least a sensing electrode, a counter electrode, a test electrode, and electrolyte means in contact with such electrodes. The housing permits gas from...
6509148 Method for fabricating biosensors using hydrophilic polyurethane  
Disclosed is a method for fabricating biosensors, using hydrophilic polyurethane. Bio-active reagents, including enzymes, antibodies, antigens, cells and receptors, are mixed with hydrophilic...
6478950 Sensing liquids in oil well using electrochemical sensor  
A sensor module for monitoring chemical properties of oil well fluids comprises at least one electrochemical sensor for a chemcal species, for example to detect pH and chloride ion concentration....
6466810 Implantable device for monitoring changes in analyte concentration  
The invention provides an electrochemical sensor system for measuring analyte concentrations in a fluid sample. The invention is particularly useful for measuring analytes such as glucose in a...
6454710 Devices and methods for monitoring an analyte  
A device for monitoring an analyte is described, which includes (a) a support having an interior surface and an exterior surface; (b) a substrate connected to the interior surface of the support;...
6436257 Means for detecting and measuring the concentration of acetylene dissolved in a fluid  
A fuel cell for generating a current in response to the presence of acetylene in a fluid. The fuel cell comprises first and second gas porous electrode means, and acidic electrolyte means...
6436258 Galvanic-cell gas sensor  
A galvanic-cell gas sensor includes casings containing a diaphragm permitting the permeation of gas to be detected but having a water-repelling property, a cathode provided on the back side of the...
6432296 Polymeric compositions for ion-selective electrodes  
Improved dry-operative ion-selective electrodes and their use are described. The dry-operative ion-selective electrodes include an internal reference electrode comprising a water-soluble salt...
6428665 Electrochemical gas sensor  
An electrochemical gas sensor has a first gas diffusion electrode for a first reaction gas, which is inactive with respect to a second reaction gas at least in a first potential window, and a...
6423209 Acid gas measuring sensors and method of using same  
A electrochemical sensor for the detection of traces of HF and/or other acid gases in air, comprising a measuring electrode of an electrochemically active metal oxide powder, a reference electrode...
6417009 Reservoir components  
A linker lipid for use in attaching a membrane including a plurality of ionophores to an electrode and providing a space between the membrane and the electrode in which the membrane is either in...
6413393 Sensor including UV-absorbing polymer and method of manufacture  
A sensor is provided that includes at least one functional coating layer that includes a UV-absorbing polymer. Methods for making the inventive sensors are also provided.
6405066 Implantable analyte sensor  
An implantable analyte sensor includes a substrate, electrodes on the substrate, and a membrane on the electrodes. The membrane can comprise elemental silicon and has a glucose diffusion test...
6391174 Ion exchange membrane for dissolved gas sensor  
An ion exchange membrane for use in sensors which measure dissolved gases. Disclosed is a method for using ion exchangers in gas permeable membranes to maintain optimal conditions in the...
6344133 Process for operating an electrochemical measuring cell  
A process for operating an electrochemical measuring cell (1) is described, with which it is possible to carry out gas concentration measurements already shortly after switching on the measuring...
6344333 Reagent-free immunoassay monitoring electrode assembly  
The present invention relates to an apparatus to perform reagent-free assays, which apparatus utilizes an all solid probe having an enzyme label that acts on a substrate by obtaining electrons...
6342346 Method of producing an electrode membrane combination  
Electrode membrane combinations for use in biosensors to detect analytes in a sample and methods for making and storing same are disclosed. In one aspect, a method is provided for producing a...
6305214 Gas sensor and methods of forming a gas sensor assembly  
A gas sensor assembly is provided with a non-conductive housing portion and a plurality of conductive housing portions, each of which are conductively separated from each other, and the conductive...
6303018 Method and apparatus for determining O2 and N2O in gas mixtures  
A method for determining relative amounts of O2 and N2 O in gas mixtures by quantitative electrochemical reaction including feeding a gas mixture containing O2 and N2 O to a zinc-air cell having...
6294133 Multiple detecting apparatus for physical phenomenon and/or chemical phenomenon  
A detector assembly for detecting a plurality of different properties at the same location at the same time is provided by integrating onto a single semiconductor substrate a first detector unit...
6287452 Electrode for the electrochemical detection of nitric oxide  
Nitric oxide-specific electrodes are useful for in situ detection of nitric oxide in biomedical applications and have at least a surface region thereof which is capable of forming complexes with...
6280604 Electrode materials, systems and methods for the electrochemical detection of nitric oxide  
Nitric oxide-specific electrodes are useful for in situ detection of nitric oxide in biomedical applications and have at least a surface region capable of forming complexes with nitric oxide. The...
6264809 Enhanced membrane electrode devices useful for electrodeposition coating  
One electrode is provided in association with the object to be coated, the other electrode. A pre-stretched ion-exchange membrane in a thin tubular form is sandwiched inbetween two nonconductive...
6258230 Non-enzymatic disposable uric acid detecting electrode strip, method for producing the same and its use  
The present invention relates to a non-enzymatic disposable uric acid detecting electrode strip which directly detects the concentration of uric acid in liquid sample under a low operation voltage...
6251243 Gas detecting apparatus having condition monitoring means  
An operational amplifier (34) has its inverting input connected to a electrochemical gas sensor (38) for amplifying the current produced thereby in response to presence of a predetermined gas. In...
6251244 Electrochemical measuring cell for detecting hydride gases  
The invention is directed to an electrochemical measuring cell for detecting hydride gases, preferably arsine and phosphine. The measuring cell includes at least one working electrode (3) made of...
6238534 Hybrid membrane electrode assembly  
Hybrid membrane electrode assemblies (MEAs) are presented, having an anode comprising a dense distribution of catalyst that may be borne on small, high-aspect ratio supports, such as...
6224550 Method for monitoring the level of an osmotically active component in body fluid and device for carrying out said method  
A method for monitoring changes in the level of an osmotically active component, such as for instance glucose, or in healthy humans, such as athletes for monitoring the level of lactic acid in the...
6225108 Microsensor for measuring the concentration of a medium in an environment  
The invention relates to a microsensor for the measurement of the presence and the concentration of a primary medium, for example nitrate, in an environment where the microsensor is placed. The...
6214206 Use of a chemical sensor  
A chemical sensor (1) for selectively detecting an analyte in a solution as described. The sensor comprises a flow-through chamber (2), a selective membrane (3), a transducer means (4), an inlet...
6214185 Sensor with PVC cover membrane  
The invention is concerned with a sensor for the determination of the concentration and the detection of an enzyme substrate in a liquid sample, the sensor comprising an enzyme capable of reacting...
6200459 Analytical method  
A method and apparatus for detecting ethanol content of a sample wherein a membrane barrier comprising unplasticized PVC is interposed between the sample and detecting means.
6200443 Gas sensor with a diagnostic device  
A highly accurate, long life, low cost gas sensor is disclosed, particularly useful for measuring carbon monoxide and other toxic gases in an environment. The gas sensor has a first, sensing...
6197172 Electrochemical sensor with gelled membrane and method of making  
An electrochemical sensor with a gelled membrane for prolonging the useful life of an ion-selective electrode. The gelled membrane is a hydrophilic membrane having a specially-formulated gel layer...
6176989 Electrochemical gas sensor  
An electrochemical gas sensor including a sensor body having a cavity, an electrolyte in the cavity, an auxiliary electrode in contact with the electrolyte, a sensing electrode in contact with the...
6176988 Membrane electrode for measuring the glucose concentration in fluids  
The present invention concerns a membrane electrode for measuring glucose concentration in liquids, comprising: a base membrane with at least one noble metal electrode which is arranged on one...
6165336 Gas sensor  
A gas sensor including a gas detection element and a gas selective permeation element covering at least part of the gas detection element. The gas sensor is arranged so that gases containing a gas...
RE36991 Biosensor and method for producing the same  
A biosensor for rapid quantification of a specific component contained in various biological samples with high accuracy has an electrically insulating base, an electrode system including a working...
6146510 Sensor cartridge for a fluid analyte analyzer  
The present invention is a sensor formed over a subminiature through hole. Because of the small diameter of the through hole, the material that fills the through hole and the through hole itself...