Class / Patent application number | Description | Number of patent applications / Date published |
436116000 | Oxides of nitrogen | 21 |
20080261322 | Nitric Oxide Detection - The present invention relates to a method for amplifying the detected signal in a gas sensor. More specifically, the present invention relates to a method for increasing the concentration of the gas which is being detected in a sample or increasing the concentration of a gas which is directly obtained from the gas in the sample by chemical reaction. The gas which is to be detected is nitric oxide (NO). In particular, the method concerns the selective conversion of NO to NO2 which allows a threefold amplification of the number of analyte molecules in NO trace gas analysis in a single amplification cycle. Subsequent reduction or thermal decomposition of the obtained NO2 can provide NO again, which can again be introduced in a new amplification cycle. Multiple (n) amplification cycles can provide a sensitivity amplification by a factor 3 | 10-23-2008 |
20100029010 | Diaminorhodamine Derivative - A compound represented by the following formula (I) or (II): | 02-04-2010 |
20110111515 | REAGENT FOR MEASUREMENT OF REACTIVE OXYGEN - A reagent for measurement of reactive oxygen, which can be used with a light of the near infrared region showing superior biological tissue permeability, wherein (i) a first cyanine compound residue and a second cyanine compound residue are bound to each other, (ii) the first cyanine compound residue has a property that it easily reacts with a reactive oxygen species and is thereby decomposed, and (iii) the second cyanine compound residue either equals or surpasses the first cyanine compound residue in its stability to the reactive oxygen species, and the first cyanine compound residue acts as a quenching group for the second cyanine compound residue. | 05-12-2011 |
20110165692 | METHOD FOR CAPTURING MEASUREMENT VALUES AND DISPLAYING MEASUREMENT VALUES - A method for determining an NO | 07-07-2011 |
20120129266 | METHOD OF DETECTING OXIDES OF NITROGEN - The present disclosure provides methods and kits to detect and quantitate NOx compounds in a biological sample. The methods include reacting a mixture comprising a nitrite compound a chromogenic reagent to form a colored compound, contacting the mixture with a retention medium configured to retain the colored compound, and detecting the colored compound retained on the retention medium. | 05-24-2012 |
20120135531 | SENSORS FOR DETECTING SUBSTANCES INDICATIVE OF STROKE, ISCHEMIA, INFECTION OR INFLAMMATION - A system is disclosed that extracts bodily fluid to a reaction chamber for monitoring a substance or property of the patient fluid. In one embodiment, a pump is used to advance the sample of bodily fluid through a filter to produce a filtrate. Another pump advances filtrate into the reaction chamber, while another pump advances reactant into the reaction chamber. A sensor in communication with the reaction chamber determines a concentration of nitric oxide or one of its metabolic products. Methods are also disclosed. | 05-31-2012 |
20120178174 | FLUORESCENT PROBE - A compound represented by the formula (I) wherein R | 07-12-2012 |
20120184045 | SENSING ELEMENT FOR NITROGEN OXIDE MOLECULE SENSING APPARATUS FOR NITROGEN OXIDE MOLECULE AND METHOD FOR SENSING NITROGEN OXIDE MOLECULE - In a sensing element for a nitrogen oxide molecule of the present invention, a sensing portion that is to be bonded to a nitrogen oxide molecule to be sensed is fixed between paired metal electrodes through connecting portions. The sensing portion is a single porphyrin molecule or a single porphyrin derivative molecule each having, as a central metal thereof, iron or cobalt. The connecting portions are each a mercaptophenyleneethynyl group bonded to the single porphyrin molecule or the single porphyrin derivative molecule. Provided are a sensing element for nitrogen oxide molecule, a sensing apparatus for nitrogen oxide molecule, and a method for sensing nitrogen oxide molecule. | 07-19-2012 |
20120244626 | NANOHYBRID NITROGEN MONOXIDE DETECTING SENSOR AND A PRODUCTION METHOD THEREFOR - The present invention provides a nanohybrid type nitrogen monoxide detecting sensor and a production method therefor in which the nanohybrid type nitrogen monoxide detecting sensor includes a fluorescent semiconducting quantum dot and a transition metal compound. | 09-27-2012 |
20130115706 | SELECTIVE CHEMOSENSORS BASED ON THE FERROELECTRIC MATERIALS, MIXED OXIDES, OR TEMPERATURE MODULATION OF OXIDE POLYMORPH STABILITY - The present invention relates to gas sensors using doped ferroelectric materials. The sensors can be fabricated as an array where different portions of the array can operate at different independently controlled temperatures to detect different gas phase components of a gas sample. Preferred embodiments can be used for the diagnosis of conditions, such as, diabetes. | 05-09-2013 |
20130137184 | NITRIC OXIDE DETECTION ELEMENT AND PROCESS FOR PRODUCING SAME - Provided are a nitric oxide detection element capable of detecting NO gas contained in a mixed gas at a high speed even when the amount thereof is a super trace amount of ten and several parts per billion; and a process for producing the element. In a nitric oxide detection element having a substrate | 05-30-2013 |
20130302903 | FLUORESCENT NITRIC OXIDE PROBES AND ASSOCIATED METHODS - Nitric oxide probes comprising a compound represented by Formula, I, II, III, IV, V, VI or a combination thereof are provided. Methods of using these nitric oxide probes to detect nitric oxide are also provided. | 11-14-2013 |
20140179014 | FLUORESCENT NITRIC OXIDE PROBES AND ASSOCIATED METHODS - Nitric oxide probes including a compound represented by Formula, I, II, III, IV, V, VI or a combination thereof are provided. Methods of using these nitric oxide probes to detect nitric oxide are also provided. | 06-26-2014 |
20150377850 | Measurement of Total Reactive Nitrogen, NOy, together with NO2, NO, and O3 via Cavity Ring-down Spectroscopy - A sensitive, compact detector measures total reactive nitrogen (NO | 12-31-2015 |
436117000 | Only nitrogen dioxide | 5 |
20110027899 | HAZARDOUS CHEMICALS DETECTOR & METHODS OF USE THEREOF - Embodiments of the invention are directed to an apparatus and method for detecting explosive compounds by air sampling followed by subjecting the air sample to a detection method. In one embodiment, a test area is sampled by drawing air from the vicinity of the test area, heating or irradiating the air sample and subjecting the irradiated sample to a detection method. With respect to nitrogen-containing explosive compounds, heating or irradiating the air sample produces nitrogen dioxide (NO | 02-03-2011 |
20110124112 | Use of Carbon Nanomaterials as a Filtration Material Impervious to Ozone - The invention relates to the use of carbon nanomaterials as a filtration material pervious to nitrogen dioxide and impervious to ozone. The invention also relates to the use of carbon nanomaterials having a specific surface, measured by the BET method, of 15 to 40 m | 05-26-2011 |
20110143447 | DIFFERENTIAL RESONATORS FOR NO2 DETECTION AND METHODS RELATED THERETO - A nitrogen dioxide sensor comprising a first beam having a first functionalized sensing surface capable of sensing nitrogen dioxide, the first beam capable of producing a first resonant frequency; and a second beam having a second functionalized reference surface not capable of sensing nitrogen dioxide, the second beam capable of producing a second resonant frequency, wherein differential sensing of nitrogen dioxide may be performed, further wherein the first beam and the second beam are each functionalized with one or more soft bases having comparable viscoelastic properties is provided. In one embodiment, the sensor is a nano-sensor capable of low drift and accurate detection of nitrogen dioxide levels at the zeptogram level. Methods of making and using a nitrogen dioxide sensor are also provided. | 06-16-2011 |
20130017618 | CHEMICAL EXPLOSIVE DETECTOR - A method and device for detecting explosive compounds in an air sample in which the air sample is filtered with activated carbon treated with a weakly basic solution, after which the air sample is divided into two parts, with one part being heated at lower temperatures to decompose non-explosive nitrogenous compounds and the second part being heated at higher temperatures to decompose explosive nitrogenous compounds. Nitrogen dioxide is measured in both portions of the air sample with a spectrographic detector, and the presence or absence of explosive nitrogenous compounds in the air sample is determined. | 01-17-2013 |
20130224872 | Apparatus and Methods for Detecting Propellant Degradation in Solid Propellant Fuel - The present disclosure relates to a gas sensor, including: a gas collecting chamber including: (a) a nanoporous wall including alumina, on a portion of the gas collecting chamber in the near vicinity of the solid propellant fuel; a micro pump attached to the gas collecting chamber; and a gas analysis device connected to the gas collecting chamber. The gas analysis device measures both type and concentration of gases collected in the gas collecting chamber via the nanoporous wall, the gases measured being selected from the group consisting of CO, CO | 08-29-2013 |
436118000 | Both nitrogen oxide and dioxide | 2 |
20090137055 | MEASURING NITROGEN OXIDES AND OTHER GASES BY OZONE FORMATION - A photochemical sensing system enables the measurement of nitrogen oxides (nitrogen dioxide and nitric oxide) by photolyzing nitrogen dioxide to form oxygen atoms which combine with oxygen molecules to form ozone. Ozone reacts with nitric oxide to for nitrogen dioxide-decreasing ozone. Changes in ozone concentration are measured as a surrogate for the nitrogen dioxide and nitric oxide. Any species which photolyzes to yield oxygen atoms may be measured by this technique. Additional specificity for nitrogen oxides is conferred by allowing the nitric oxide to react with the ozone to recreate the nitrogen dioxide. By periodically photolyzing the nitrogen dioxide (to form ozone), and then allowing the resulting nitric oxide to react with the ozone (thereby reducing ozone), a pulsed signal is obtained whose amplitude is proportional to the total amount of nitrogen dioxide and nitric oxide present. Medical applications include measuring nitric oxide concentrations in expired air samples. | 05-28-2009 |
20120238031 | Conversion of Nitrogen Dioxide (NO2) to Nitric Oxide (NO) - Various systems, devices, NO | 09-20-2012 |