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7608177 |
Electrochemical gas sensor
An electrochemical gas sensor with a stacked arrangement of electrodes and nonwoven layers arranged in parallel, comprising at least one measuring electrode ( 3 ) and at least one counterelectrode...
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7553403 |
Reversible electrochemical sensors for polyions
The present invention is directed to a reversible electrochemical sensor for polyions. The sensor uses active extraction and ion stripping, which are controlled electrochemically. Spontaneous...
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7393448 |
Method of binding a compound to a sensor surface
The present invention relates to a method of non-covalently binding a compound to a sensor surface. The method comprises adsorbing a hydrophobin-like substance to at least a part of the sensor...
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7384523 |
Chloride ion selective membrane and sensor
A chloride selective electrode membrane comprises a polymeric matrix wherein the matrix comprises an epoxy resin, and an amine agent selected from the group consisting of polyamides, amidoamines...
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7276145 |
PH electrode
An object of the present invention is to suppress an electric potential drift as described above and improve pH measurement precision in order to obtain practical measurement precision in the...
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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...
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7208121 |
Plasticizer-free-ion-detective sensors
A plasticizer-free ion detective sensor for detecting a target ion in a sample is provided. The sensor comprises a copolymer of methacrylate monomers with pendant alkyl groups of different length,...
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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...
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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...
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7179354 |
Electrochemical sensor
Disclosed is an electrochemical sensor comprising a work electrode and a reference electrode, said sensor adapted to measure the characteristics of a liquid under test, based on the relative...
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7144486 |
Multilayer microcavity devices and methods
Microcavities and micropores that are microscopic (<1 mm) in width and depth and contain any number of individually-addressable electrodes, separated by insulators, along the walls of each...
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7115195 |
Ion selective monoelectrode complex
An ion selective monoelectrode complex which is favorably employable to manufacture an ion activity measuring apparatus, has on a common non-electroconductive support sheet, plural ion selective...
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7083709 |
Potentiometric, ion-selective electrode
The invention relates to a potentiometric, ion-selective electrode for the measurement of cation concentration in a sample, which electrode is made of electrically conductive electrode material...
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7063781 |
Techniques for sensing chloride ions in wet or dry media
Techniques are provided for measuring chloride ion concentration in a medium. The techniques allow measurements to be made in dry or alkaline media, or both. For alkaline conditions, a sensor...
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7018523 |
Detection of analytes using reorganization energy
The invention relates to novel methods and compositions for the detection of analytes using the nuclear reorganization energy, λ, of an electron transfer process.
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6908542 |
Rotating potentiometric electrode
A rotating electrode configuration lowers the detection limits of polyion-sensitive membrane electrodes. Planar potentiometric polycation and polyanion-sensitive membrane electrodes were prepared...
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6890715 |
Sensors of conducting and insulating composites
The present invention provides a class of sensors prepared from at least a first material having a positive temperature coefficient of resistance and a second non-conductive or insulating material...
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6884331 |
Method for depositing an adhesive PVC layer on an electrode and electrode obtained according to said method
The invention relates to a method for depositing an adhesive PVC copolymer layer on a substrate, characterized in that it comprises the following steps: formation of a mixture of copolymer...
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6878251 |
Heated electrochemical cell
The invention provides a method for determining the concentration of an analyte in a sample comprising the steps of heating the sample and measuring the concentration of the analyte or the...
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6869512 |
Device for measuring ionic activities
A device for measuring ionic activity is composed of:
a block of insulating material having a hollow space therein, a solution-receiving surface area in which a pair of openings for...
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6855747 |
Method of producing ion sensitive film for ion sensor
There is disclosed a method of easily producing a long-lived ion sensitive film having excellent durability and used in an ion sensor. The method starts with preparing a monomer mixture consisting...
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6798184 |
Integrated sensor device and measuring system using the same
An integrated sensor device having a structure suited for mass production despite of a short lifetime and automatically replaceable, and a measuring system realizing a continuous monitoring at a...
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6793789 |
Reference electrode with a polymeric reference electrode membrane
Disclosed is a polymeric reference electrode membrane comprising (a) one selected from a porous polymer or a hydrophilic plasticizer; (b) a lipophilic polymer; and optionally an adhesion-enhancing...
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6780307 |
Ion selective electrodes for direct organic drug analysis in saliva, sweat, and surface wipes
A hand-held portable drug monitoring system to detect and quantitate cocaine and other organic drugs in saliva, sweat, and surface wipes by using an ion selective electrode or an array of ion...
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6767747 |
Measuring probe and method for measuring the concentration of agents in gases and/or liquids
The measuring probe ( 1 ) for detecting agents in a gaseous or liquid medium and/or measuring their concentrations includes a sensor-active solid layer ( 4 ) that reacts to adsorption of an agent...
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6767450 |
Ion selective electrode
A composite ion selective electrode comprising a calcium ion selective electrode member and a hydrogen ion selective electrode member which is characterized in that a calcium ion selective membrane...
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6752964 |
Polymer/plasticizer based sensors
This invention relates to a novel class of vapor sensors with tunable properties. More particularly, this invention relates to vapor sensors modified by the addition of a compatible small molecule...
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6746595 |
Ammonium ionophore, an ammonium ion selective matrix, an ammonium ion-selective sensor, and a method for detecting ammonium ions in a fluid sample
An ammonium selective ionophore for use in ion selective electrodes.
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6740216 |
Potentiometric sensor for wellbore applications
A potentiometric sensor for wellbore applications having a permanent aqueous contact between measuring and reference electrode, whereby contact is ensured by discharging the internal solution from...
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6730201 |
Electronic tongue
An ion selective electrode (ISE) array is described, as well as methods for producing the same. The array can contain multiple ISE which are individually electronically addressed. The addressing...
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6663756 |
Microchip-type oxygen gas sensor based on differential potentiometry
Disclosed is a microchip-based differential-type potentiometric oxygen gas sensor, which comprises a working electrode and a reference electrode. The working electrode is composed of a...
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6638408 |
Method and device for separation of charged molecules by solution isoelectric focusing
The invention provides a novel solution isoelectric focusing device and method that can reproducibly fractionate charged molecules into well-defined pools. This approach can be applied to mixtures...
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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...
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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...
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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...
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6569304 |
Planar open reference electrode for use in voltammeric measuring chains
The invention relates to reference electrodes for use in voltammetric measuring chains for oxidative as well as reductive detection of analytes, which are open with respect to the measuring medium....
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6540893 |
Ion sensor
An object of the present invention is to provide an electrode and a field effect transistor having excellent ion selectivity using a noncyclic peptide. In order to achieve the above object, the ion...
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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...
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6508921 |
Lithium ion-selective electrode for clinical applications
A lithium ion-selective membrane that favors the bonding of lithium and depresses sodium interference is invented by a charge balance approach. A lithium ion-selective electrode (Li-ISE) having the...
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6478939 |
Biosensor device and method
A biosensor apparatus for detecting a binding event between a ligand and receptor. The apparatus includes a biosensor surface and surface-bound two-subunit heterodimer complexes composed of first...
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6468406 |
Anion-complexing compound, method of preparing the same, an ion-selective membrane and a sensor provided with such a compound or membrane
The invention is directed to an anion-complexing compound with the formula I wherein R1 is a six-membered ring, Y′ is —NHC(X)NH—, and Y″ is selected from the group consisting of...
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6464848 |
Reference electrode, a biosensor and a measuring apparatus therewith
On an insulating substrate 1 is formed an electrode 2, on which is then formed a protection layer 3 consisting of a methacrylate-resin polyfluoroalcohol ester layer.
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6451196 |
Ionic reservoir through application of an electrical potential
An improved membrane based biosensor incorporates sensing and reference electrodes and a dc electrical potential produced by a counter electrode. The biosensor incorporates ionophores. The...
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6447659 |
Intrinsic shorting link for gas sensors
An amperometric electrochemical gas sensor includes a permanent electrical resistance means disposed between two electrodes, one of which is the working electrode, the electrical resistance means...
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6447656 |
Biosensor
The present invention provides a membrane based biosensor. The biosensor includes an electrode and a passivating layer bound to the electrode. A lipid membrane incorporating ionophores, the...
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6436259 |
Mercury selective electrode
The present invention is an apparatus for laboratory and field use in detecting and measuring Hg + and Hg 2+ in sample. A selective mercury binding agent, such as a chelating agent or clathrating...
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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...
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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...
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6416646 |
Method of making a material for establishing solid state contact for ion selective electrodes
A polymeric material which to form a stable, reproducible interface between the ionic and electronic domains of an ion selective sensor, or an ion selective field effect transistor, or the like is...
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6413394 |
Disposable plate electrode with biological active film
A disposable plate electrode with biological active film is used to cooperate with a biological sensor for analyzing composition and measuring concentration of a test sample according to electric...
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