Class / Patent application number | Description | Number of patent applications / Date published |
435020000 | Involving cholinesterase | 13 |
20100233745 | DETECTING A MICROORGANISM STRAIN IN A LIQUID SAMPLE - The invention concerns a medium for detecting, identifying and differentiating a microorganism strain in a liquid medium by contacting said liquid sample with a combination of chromogens substrates of enzymes expressed or not by the strain to be detected, the final coloration of the mixture being detectable in the wavelengths of the visible light. | 09-16-2010 |
20100255520 | METHOD FOR ASSESSING RISK OF HEART FAILURE - A method of determining risk of heart failure in a mammal is provided comprising the steps of measuring in a biological sample obtained from a mammal the level of each of IL-6, MCP-1, IL-10, VEGF, and EGF biomarkers in the sample, wherein a positive result of at least three of said biomarkers is indicative of a risk of heart failure in the mammal. | 10-07-2010 |
20110045517 | Toxic Material Detection Apparatus and Method - A toxic material detection apparatus includes a sample collection portion including a sample inlet and a sample concentrator adapted to concentrate an environmental sample on a substrate. A sample distributing system transfers portions of the substrate to a color sensor and an ion mobility spectrometer for simultaneously analysis and toxin detection, particularly cholinesterase inhibitor detection. Optionally, a portion of the substrate may be directed to an archive for possible analysis at a later time. Reagents utilized include the enzyme acetylcholinesterase (AChE), and the reactants acetylthiocholine iodide (ATCI) and 5,5′-dithio-bis-(2-nitrobenzoic acid) (DTB). A data management unit provides for near-real-time analysis of the samples in under 5 minutes. Simultaneous “hits” by both analysis methods indicate the presence of a cholinesterase inhibitor. | 02-24-2011 |
20110124023 | DEVICE, KIT AND METHOD FOR DETECTION OF CHOLINESTERASE-INHIBITING SUBSTANCE - A detection device comprises a basal layer fixed at the bottom of a container therein, and a cholinesterase-containing reaction layer is fixed on the basal layer. A sample is added to the detection device, and the presence of a cholinesterase-inhibiting substance in the sample is visually determined through coloring reaction. For detecting an organophosphate agrichemical, the sample is brought into contact with an oxidizing agent on a column to convert it into the oxon form thereof. | 05-26-2011 |
20120107854 | REAGENT FOR MEASUREMENT OF CHOLINESTERASE ACTIVITY - An N-alkylpiperidine methanethiol ester derivative represented by any one of the general formulae (1) to (4) or a salt thereof has been discovered. The N-alkylpiperidine methanethiol ester derivative or the salt thereof has specificity for acetylcholinesterase or butyrylcholinesterase and is useful as a reagent for measurement of cholinesterase activity by the Ellman method. | 05-03-2012 |
20120208222 | Microchemical reactor - Microchemical reactors embedded in absorbant materials are described that allow operators to perform chemical reactions and chemical cascades using multiple microencapsulated reagents, which release stoichiometric amounts of reagents in a predetermined time sequence with a predetermined logic. | 08-16-2012 |
20120309037 | Methods and Compositions for Detection and Identification of Organophosphorus Nerve Agents, Pesticides and Other Toxins - The present invention provides methods and devices for detecting and identifying toxins, including but not limited to organophosphorus nerve agents and/or organophosphorus pesticides, in a sample. One embodiment of the present invention comprises a method for identifying an organophosphorus nerve agent and/or an organophosphorus pesticide, comprising: exposing a group of enzymes comprising human carboxylesterase 1, at least one mutant of human carboxylesterase 1, and acetylcholinesterase to a sample, wherein the enzymes are separate from each other and each enzyme binds at least one organophosphorus nerve agent or at least one organophosphorus pesticide; contacting the exposed enzymes with a fluid comprising an oxime and a substrate; and detecting a signal produced upon reaction of the substrate and the exposed enzymes, whereby detection of the signal identifies the organophosphorus nerve agent and/or the organophosphorus pesticide. | 12-06-2012 |
20140004547 | Rapid Tests for the Detection of Inhibitors of Enzymes and Human Exposure to the Same | 01-02-2014 |
20140377790 | METAL NANOPARTICLE DECORATED CARBON NANOTUBES AND METHODS OF PREPARATION AND USE - Methods of forming metal nanoparticle decorated carbon nanotubes are provided. The methods include mixing a metal precursor with a plurality of carbon nanotubes to form a metal precursor-carbon nanotubes mixture. The methods also include exposing the metal precursor-carbon nanotubes mixture to electromagnetic radiation to deposit metal nanoparticles on a major surface of the carbon nanotubes. | 12-25-2014 |
20150368691 | One-step Rapid Assay for the Detection of Inhibitors of Enzymes - A device and method for the rapid on-site detection of inhibitors of enzymes, such as acetylcholinesterase, is described wherein the device contains all reagents added to a sample pad containing dried releasable enzyme creating a reaction mixture wherein inhibitor deactivates the enzyme, while said reaction mixture travels via a longitudinal membrane to a distal porous pad containing a substrate for the enzyme. The reaction of the enzyme and the substrate results in a product that can generate a measurable signal such as color, fluorescence or luminescence to serve as a reporter. Signal that is generated at this reaction zone is inversely proportional to inhibitor concentration in the test sample. A device containing two such strips, one for a test sample, the other for a negative control fluid as an onboard comparator is described. A purpose-built reader or an illuminating device, such as, containing an incandescent light source, a diode, a UV light source or any other illumination source that is suitable for the reporter or mere visualization is used to determine the level of reporter. | 12-24-2015 |
20160054310 | BIOSENSORS UTILIZING INK JET-PRINTED BIOMOLECULE COMPATIBLE SOL GEL INKS AND USES THEREOF - Novel solid-phase biosensors that utilize ink jet printing of biocompatible sol-gel based inks to create sensor strips are reported herein. Biomolecules and other reagents useful in bioassays to detect, for example, pathogenic microorganisms or toxic substances, are immobilized on a substrate, which can be paper based, by layering these substances between two layers of biomolecule compatible sol gel. The sol gel precursor solutions and solutions of the assay reagents are printed from separate nozzles in a layered approach which avoids clogging of the nozzles by the pre-mature gelling of the sol gel precursor solution. In certain embodiments of the application, a capture agent is used to concentrate a compound to be detected in specific areas on the substrate to facilitate detection. | 02-25-2016 |
20160076076 | SPECIFIC FLUORESCENT PROBE BASED ON ALBUMIN PSEUDO-ESTERASE HYDROLYSIS REACTION AND USE THEREOF - A pseudo-esterase activity-based fluorescent probe for specific detection of albumin, which has a carboxylic ester bond that can be selectively cleaved by human serum albumin (HSA), therefore forming a hydrolysate, which has a fluorescence emission spectrum significantly different from that of the fluorescent probe. According to the fluorescence intensity of the fluorescent probe and hydrolysate, we can detect the content of HSA in a biological sample. | 03-17-2016 |
20160097785 | CALIBRATION METHOD FOR PHOTOMETRY - A method for determining a physical property of a biological sample. The method comprises the steps of: acquiring a set of preliminary calibration signals of a first lot of a reagent using an automatic analyzer with a first photometry module; acquiring a reference set of signals of the first lot of the reagent using a calibration analyzer with a second photometry module; determining a set of module specific components by subtracting the reference set of signals from the preliminary calibration signals; acquiring a lot specific set of signals of a second lot of the reagent using the second photometry module; determining a lot calibration for the first photometry module using the set of module specific components and the lot specific set of signals; acquiring a measurement signal of the biological sample using the first photometry module and the second lot of the reagent; and determining a physical property of the biological sample using the measurement signal and the lot calibration. | 04-07-2016 |