Ammonia Patents (Class 436/113)
  • Patent number: 10408818
    Abstract: A gas sensor system is for use in, or in the vicinity of, a toilet, for detecting a target gas. A gas sensor detects a concentration of at least the target gas and a further, reference, gas which is received from a controlled gas release device. These concentrations are processed to obtain a concentration of the target gas relative to the concentration of the further gas by combining a change in the detected concentration of the target gas, a change in the detected concentration of the further gas, the sensitivity of the gas sensor system to the target gas and the sensitivity of the gas sensor system to the further gas. This approach avoids the need for extensive calibration operations to tune the sensor response to the environment in which it is used.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: September 10, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Rick Bezemer, Nicolaas Lambert, Maria Estrella Mena Benito
  • Patent number: 9983185
    Abstract: A chemosensing hydrogel is provided that undergoes a colorimetric reaction in response to the detection of a biogenic amine vapor, such as a biogenic amine vapor that is a by-product resulting from food spoilage. In an embodiment, an apparatus for detection of biogenic amines, is provided that includes a hydrogel having a bimetallic iron(II)-iron(III) complex disposed within the hydrogel, wherein the hydrogel is configured to change from a first color to a second color in response to exposure to a biogenic amine.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: May 29, 2018
    Assignee: CITY UNIVERSITY OF HONG KONG
    Inventor: Hon-Wah Lam
  • Patent number: 9283710
    Abstract: Disclosed herein is an infrared emitter welder for fusion welding pipe joints. In one representative embodiment, the welder comprises a fuel tank adapted to contain a fuel under pressure and a heating element in fluid communication with the fuel tank. The heating element includes a pair of porous ceramic plates, each having opposing first and second surfaces, wherein the first surfaces of the ceramic plates are joined together, and wherein at least one of the first surfaces includes fuel distribution channels formed therein. A catalytic material, such as platinum, is disposed on at least one of the second surfaces and is operative to ignite the fuel as it reaches the second surface. A supply conduit interconnects the fuel tank and heating element.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: March 15, 2016
    Assignee: McAlister Technologies, LLC
    Inventor: Roy Edward McAlister
  • Patent number: 9182325
    Abstract: An apparatus for changing relative concentrations of first and second analyte substances in an analyte sample comprises a sample cell defining a sample chamber therewithin, and a semipermeable boundary member disposed in the sample chamber to define first and second sides of the sample chamber. Sample flow input and sample flow output ducts direct an analyte sample containing respective initial concentrations of the first and second analyte substances into the first side of the sample chamber. The semipermeable boundary member permits diffusion therethrough of the first and second analyte substances to the second side of the sample chamber at different rates. An analyte sample in the second side of the sample chamber, and an analyte sample exiting the first side via the sample flow output duct, have respective concentrations of the first and second analyte substances that are different from the initial concentrations.
    Type: Grant
    Filed: July 18, 2006
    Date of Patent: November 10, 2015
    Assignee: Agilent Technologies, Inc.
    Inventor: Arthur Schleifer
  • Patent number: 9138524
    Abstract: A sensing system for detecting a substance in a dialysate. The system includes a hydrophobic barrier capable of allowing the substance in the dialysate to equilibrate to a gas; a detector capable of detecting the gas; an interface disposed between the hydrophobic barrier and the detector and configured to allow fluid communication of the gas; and one or more delivery mechanisms capable of transporting the gas from the hydrophobic barrier to the detector. A method of detecting ammonium gas in a dialysate is also provided.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: September 22, 2015
    Assignee: Temasek Polytechnic
    Inventors: Christian Gert Bluchel, Yanmei Wang, Hua Zhang, Jui Pin Er, Kim Jyh Wong
  • Publication number: 20150093771
    Abstract: An analytical device for analysis of chemical or biological samples, a method of using such a device, based on rotation of the device, integrated sample dosing and optical detection, and a system comprising such a device are disclosed. The analytical device comprises a device body having a liquid processing unit. The liquid processing unit comprises a mixing chamber for mixing a sample with a reagent, a sample dosing chamber for delivering a defined volume of the sample to the mixing chamber, and a reagent channel for delivering the reagent to be mixed with the sample, wherein the mixing chamber also serves as a detection chamber.
    Type: Application
    Filed: December 2, 2014
    Publication date: April 2, 2015
    Inventors: Patrick Griss, Rainer Jaeggi, Goran Savatic, Vuk Siljegovic
  • Publication number: 20150065365
    Abstract: An apparatus is provided for sensing an analyte in a fluid.
    Type: Application
    Filed: May 12, 2014
    Publication date: March 5, 2015
    Applicant: Invoy Technologies, L.L.C
    Inventor: Lubna Ahmad
  • Patent number: 8969083
    Abstract: A method that identifies the compounds contributing to a fish-like odor from an air conditioner and artificially reproduces the fish-like odor, and prepares a corresponding fish-like odor composition. Through the analysis method of the present invention, the compounds contributing to the fish-like odor from an air conditioner are identified and quantified. The fish-like odor is reproduced from a combination of the compounds identified by the analysis method of the present invention. The reproduced fish-like odor provides significant data required for development of an apparatus and a method for removing specific odor.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: March 3, 2015
    Assignee: Hyundai Motor Company
    Inventors: Tae Hee Lee, Ji Wan Kim, Sang Jun Lee, Seok Man Kim
  • Patent number: 8962334
    Abstract: A method is provided that identifies the compounds contributing to a malodor from an air conditioner, reproduces the malodor, and prepares a corresponding malodor composition. Through the analysis method of the present invention, the compounds contributing to the malodor from an air conditioner are identified and quantified. The malodor is reproduced from a combination of the compounds identified by the analysis method of the present invention. The reproduced malodor provides significant data required for development of an apparatus and a method for removing specific odor.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: February 24, 2015
    Assignee: Hyundai Motor Company
    Inventors: Tae Hee Lee, Chi Won Jeong, Ji Wan Kim, Sun Dong Kim, Sang Jun Lee, Seok Man Kim
  • Patent number: 8945936
    Abstract: In one aspect of the invention, a method includes determining an amount of carbon dioxide (CO2) in dialysate flowing through a dialysis system using a CO2 sensor associated with the dialysis system, determining, using a pH sensor associated with the dialysis system, a pH level of the dialysate, and calculating a level of bicarbonate in the dialysate based at least in part on the determined amount of CO2 measured in the gas and the determined pH level of the dialysate.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: February 3, 2015
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Stephen R. Ash, Thomas A. Sullivan, David Carr, Michael James Beiriger
  • Patent number: 8940543
    Abstract: Disclosed are methods and apparatus for treating and analyzing a gas stream to determine the effectiveness of urea gasification. The apparatus will be capable of performing the method and will include: means for introducing an aqueous solution of urea into a reactor having hot gases therein and subjecting the aqueous to temperatures for a time to assure the gasification of the aqueous urea and form a thermal gasification product stream containing NH3 and HNCO; means for taking a sample stream from the gasification product stream; means for contacting the sample stream with a hydrolysis catalyst in the presence of sufficient water to convert HNCO to NH3 and form an ammonia sample stream; and means for analyzing the ammonia sample stream for NH3. The methods and apparatus can also be used to control a urea gasification process and/or to signal anomalous operation.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: January 27, 2015
    Assignee: Fuel Tech, Inc.
    Inventors: William H. Sun, John M. Boyle
  • Patent number: 8926909
    Abstract: A method for modernizing an ammonia synthesis loop (1) with a first converter (10) and a second converter (11) in series, the first converter (10) comprises a cartridge with one or more catalyst beds, the second converter (11) comprises a catalyst bed in direct contact with said vessel, the method comprising the steps of removing the second converter, and boosting the first converter by replacing the cartridge with a high-efficiency cartridge comprising a plurality of adiabatic catalyst beds and inter-bed heat exchangers, or an isothermal catalyst bed, and by reducing the concentration of inerts in said first converter.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: January 6, 2015
    Assignee: Casale SA
    Inventors: Ermanno Filippi, Luca Bianchi
  • Patent number: 8895318
    Abstract: An ammonia compound concentration measuring device includes: a pipe unit through which the circulating gas flows; a converter which is disposed in the pipe unit and converts an ammonia compound into ammonia; a measurement device which measures a first measurement value as a concentration of ammonia contained in a first circulating gas flowing inside a pipe line passing through the converter in the circulating gas flowing inside the pipe unit and a second measurement value as a concentration of ammonia contained in a second circulating gas flowing inside a pipe line not passing through the converter in the circulating gas flowing inside the pipe unit; and a controller which controls operations of the pipe unit and the measurement device and calculates the concentration of the ammonia compound of the measurement subject contained in the circulating gas from a difference between the first measurement value and the second measurement value.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: November 25, 2014
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Atsushi Takita, Masazumi Tanoura, Kenji Muta, Shinichiro Asami, Kageharu Moriyama
  • Publication number: 20140323322
    Abstract: A chemical sensor comprising: a hydrogel layer, comprising one or more molecular recognition agents and a 2DPC self-assembling array; and a mirror layer. A method for analyzing a sample or bodily fluid, comprising: obtaining a sample or bodily fluid; placing an amount of the sample or bodily fluid onto a chemical sensor, comprising: a hydrogel layer, comprising a molecular recognition agent and a 2DPC self-assembling array; a tethering hydrogel layer; a mirror layer; and a membrane filter layer, allowing the bodily fluid to interact with the hydrogel layer; and allowing ambient or artificial light to pass through the hydrogel layer onto the mirror layer and observing a change in diffraction versus a control.
    Type: Application
    Filed: October 4, 2012
    Publication date: October 30, 2014
    Inventor: Sanford A. Asher
  • Patent number: 8852945
    Abstract: Disclosed herein is a method for identifying compounds contributing to a sour odor emitting from an air conditioner, a method for artificially reproducing the detected sour odor and preparing a corresponding sour odor composition. Through the analysis method of the present invention, the compounds contributing to the sour odor emitted from an air conditioner may be identified and quantified. The detected sour odor may be reproduced from a combination of the compounds identified by the analysis method of the present invention. The reproduced sour odor may provide meaningful data required for development of an apparatus and a method for removing specific odors.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: October 7, 2014
    Assignee: Hyundai Motor Company
    Inventors: Tae Hee Lee, Ji Wan Kim
  • Patent number: 8828728
    Abstract: An aquatic environment monitoring system and method that includes correction for adverse conditions in the monitoring system involving the development of confidence levels for certain conditions in the monitoring system using stored information related to the aquatic environment and/or the monitoring system. Corrections to adverse conditions may be made by the environment monitoring system automatically by the monitoring system and manually via communications to a user of the system.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: September 9, 2014
    Assignee: Step Ahead Innovations, Inc.
    Inventor: James E. Clark
  • Patent number: 8815604
    Abstract: A microchannel chip having a microchannel formed in a substrate and a gas-liquid phase separation microchannel whose upper part is covered with a porous film, the gas-liquid phase separation microchannel being connected to the downstream end of the microchannel and having a depth of 10 ?m to 100 ?m. Also, a gas-liquid phase separation method which is a method for separating a liquid-phase flow from a two-phase flow flowing through a microchannel by removing a gas phase, the two-phase flow composed of the gas phase and the liquid phase, which liquid phase flows in the periphery of the above-described microchannel and which gas phase flows interiorly of the liquid-phase flow.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: August 26, 2014
    Assignees: Institute of Microchemical Technology Co., Ltd., The University of Tokyo, Kanagawa Academy of Science and Technology
    Inventors: Arata Aota, Yuko Kihira, Mari Sasaki, Takehiko Kitamori, Kazuma Mawatari
  • Patent number: 8790930
    Abstract: A chemical indicator having a particulate inorganic substrate, and at least one reactive dye or ink coated on and/or impregnated within the particulate inorganic substrate. Coating and/or impregnating at least one reactive dye or ink on or within a particulate inorganic substrate improves the storage stability and/or thermal stability of the at least one reactive dye or ink, which typically includes relatively unstable compounds. This allows the present indicators to be incorporated into thermoplastic polymer materials and processed conventionally while maintaining the efficacy and stability of the new indicators. The indicators provide simple, reliable, and cost effective detection means for detecting analytes such as ammonia, carbon dioxide, and oxygen, and may find use in applications such as food packaging and medical applications.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: July 29, 2014
    Assignee: University of Strathclyde
    Inventors: Andrew Mills, Pauline Grosshans, Graham Skinner
  • Publication number: 20140186968
    Abstract: A method that identifies the compounds contributing to a fish-like odor from an air conditioner and artificially reproduces the fish-like odor, and prepares a corresponding fish-like odor composition. Through the analysis method of the present invention, the compounds contributing to the fish-like odor from an air conditioner are identified and quantified. The fish-like odor is reproduced from a combination of the compounds identified by the analysis method of the present invention. The reproduced fish-like odor provides significant data required for development of an apparatus and a method for removing specific odor.
    Type: Application
    Filed: July 18, 2013
    Publication date: July 3, 2014
    Inventors: Tae Hee Lee, Ji Wan Kim, Sang Jun Lee, Seok Man Kim
  • Patent number: 8735165
    Abstract: A sensor, a method for its fabrication, and a method for its use to detect contaminants, for example, ammonia, in stagnant and dynamic fluid media, especially liquid media. The sensor is an opto-chemical sensor that includes a polymer optical fiber, a sensing layer comprising oxazine 170 perchlorate on the polymer optical fiber, and a membrane layer on the sensing layer. The membrane layer is gas permeable and not permeable to the fluid in the fluid system, and moisture is entrapped by and between the sensing and membrane layers.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: May 27, 2014
    Assignee: Purdue Research Foundation
    Inventors: Agbai Agwu Nnanna, Ahmed Hasnain Jalal
  • Patent number: 8734723
    Abstract: A gas sensor cell using a liquid crystal composite material is provided. The gas sensor cell has recovery capability and can be reused. Upon gas adsorption, the liquid crystal composite material has visually detectable color changes and changes in electrical properties to facilitate the measurement of gas concentration from low to high.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: May 27, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Chin-Kai Chang, Hui-Lung Kuo
  • Publication number: 20140087475
    Abstract: Disclosed herein is a method for identifying compounds contributing to a sour odor emitting from an air conditioner, a method for artificially reproducing the detected sour odor and preparing a corresponding sour odor composition. Through the analysis method of the present invention, the compounds contributing to the sour odor emitted from an air conditioner may be identified and quantified. The detected sour odor may be reproduced from a combination of the compounds identified by the analysis method of the present invention. The reproduced sour odor may provide meaningful data required for development of an apparatus and a method for removing specific odors.
    Type: Application
    Filed: December 4, 2012
    Publication date: March 27, 2014
    Applicant: Hyundai Motor Company
    Inventors: Tae Hee Lee, Ji Wan Kim
  • Patent number: 8663995
    Abstract: There are provided a method for analyzing an aqueous ammonium carbamate solution whereby the composition of an unreacted-gas absorber outlet liquid can be specified in real time, and a method for operating an unreacted gas absorber by use of the same.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: March 4, 2014
    Assignee: Toyo Engineering Corporation
    Inventors: Eiji Sakata, Kenji Yoshimoto, Shuhei Nakamura
  • Patent number: 8586383
    Abstract: The invention relates to a device (10) for detection of harmful substances with a measurement unit (28) for measuring at least one harmful substance and an evaluation unit (30) for determining the concentration of the at least one harmful substance. The invention also relates to a method for detecting harmful substances in a gas mixture. It is hereby provided that the gas mixture is tested for a gaseous harmful substance or simultaneously for several gaseous harmful substances, wherein the gaseous harmful substance or the gaseous harmful substances is/are measured with different sensor means, and the gaseous harmful substances are optionally chemically modified such that a measurement is performed with the existing sensor means.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: November 19, 2013
    Assignee: Airsense Analytics
    Inventors: Andreas Walte, Wolf Münchmeyer
  • Patent number: 8513022
    Abstract: A method for determining the amount of a chemical species in a sample, in particular the amount of weak acid dissociable cyanide or total cyanide in a sample, and an apparatus for performing said method. The method comprises the steps of: i) treating the sample to liberate the chemical species into a gaseous stream; ii) directing the gaseous stream to a scrubber; iii) absorbing the chemical species into a scrubber solution; and iv) determining the amount of chemical species absorbed into the scrubber solution, wherein any remaining chemical species not absorbed into the scrubber solution is directed or recirculated to the scrubber in the gaseous stream and step iii) is repeated to increase absorption of the chemical species prior to performing step iv).
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: August 20, 2013
    Assignee: Cyantific Instruments Pty Ltd
    Inventor: Fraser John Ross
  • Publication number: 20130157377
    Abstract: An ammonia compound concentration measuring device includes: a pipe unit through which the circulating gas flows; a converter which is disposed in the pipe unit and converts an ammonia compound into ammonia; a measurement device which measures a first measurement value as a concentration of ammonia contained in a first circulating gas flowing inside a pipe line passing through the converter in the circulating gas flowing inside the pipe unit and a second measurement value as a concentration of ammonia contained in a second circulating gas flowing inside a pipe line not passing through the converter in the circulating gas flowing inside the pipe unit; and a controller which controls operations of the pipe unit and the measurement device and calculates the concentration of the ammonia compound of the measurement subject contained in the circulating gas from a difference between the first measurement value and the second measurement value.
    Type: Application
    Filed: September 28, 2010
    Publication date: June 20, 2013
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Atsushi Takita, Masazumi Tanoura, Kenji Muta, Shinichiro Asami, Kageharu Moriyama
  • Publication number: 20130116192
    Abstract: N-(aminoacyl)-amino compound, represented by the following formula Wherein R1 denotes hydrogen, low alkyl or carbonyl, and N1 denotes an NH group and R2 denotes hydrogen or low alkylphenyl or aralkyl or imidazoalkyl or indolylalkyl, R1 and R2 together may complete a pyrrolidine or piperidine or thiazolidine ring and R3 denotes hydrogen or methyl or low alkyl and R4 denotes hydrogen or alkyl or the group remaining on exclusion of R4 from the formula and Z is a straight chain or branched alkylene, which may contain up to 3 carbon atoms. and R5 is nitrogen or sulphur or oxygen or salts thereof and ester compounds, characterised in that A is an ester or amino acid or alternatively sodium or a potassium salt of arginate and/or of ornithate and/or of aspharaginate.
    Type: Application
    Filed: March 30, 2011
    Publication date: May 9, 2013
    Inventor: Gosbert Weth
  • Publication number: 20130085179
    Abstract: The present disclosure provides methods for evaluating daily ammonia exposure based on a single fasting ammonia blood level measurement, as well as methods that utilize this technique to adjust the dosage of a nitrogen scavenging drug, determine whether to administer a nitrogen scavenging drug, and treat nitrogen retention disorders.
    Type: Application
    Filed: March 9, 2012
    Publication date: April 4, 2013
    Inventors: Bruce SCHARSCHMIDT, Masoud Mokhtarani
  • Patent number: 8409864
    Abstract: An ammonia gas sensing device includes a housing defining a fluid flow path. The fluid flow path includes a fluid inlet, a fluid outlet, and an access port. A gas permeable/liquid impermeable membrane is mounted on and sealed against the housing at the access port such that the membrane is exposed to the fluid flow path but fluid is blocked from flowing outward of the access port around rather than through the membrane. An ammonia sensor is mounted on the housing at the access port in a position outward of the membrane. A system for using the ammonia sensing device includes the ammonia gas sensing device, a light source directed at the ammonia sensor, a photo detector to measure the light reflected off the ammonia sensor from the light source, and a controller for controlling the light source and optical sensor.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: April 2, 2013
    Assignee: Renal Solutions, Inc.
    Inventor: Stephen R. Ash
  • Publication number: 20120288951
    Abstract: The present invention relates to the field of detection of components in gas phase, and in particular to detection of nitric oxide exhaled as a component of breath, using a liquid crystal assay format and a device utilizing liquid crystals as part of a reporting system.
    Type: Application
    Filed: April 27, 2012
    Publication date: November 15, 2012
    Applicant: PLATYPUS TECHNOLOGIES, LLC
    Inventors: Bharat Acharya, Avijit Sen, Nicholas Abbott, Kurt Kupcho
  • Publication number: 20120288953
    Abstract: A sensor, a method for its fabrication, and a method for its use to detect contaminants, for example, ammonia, in stagnant and dynamic fluid media, especially liquid media. The sensor is an opto-chemical sensor that includes a polymer optical fiber, a sensing layer comprising oxazine 170 perchlorate on the polymer optical fiber, and a membrane layer on the sensing layer. The membrane layer is gas permeable and not permeable to the fluid in the fluid system, and moisture is entrapped by and between the sensing and membrane layers.
    Type: Application
    Filed: May 14, 2012
    Publication date: November 15, 2012
    Applicant: Purdue Research Foundation
    Inventors: Agbai Agwu Nnanna, Ahmed Hasnain Jalal
  • Publication number: 20120288952
    Abstract: Disclosed are methods and apparatus for treating and analyzing a gas stream to determine the effectiveness of urea gasification. The apparatus will be capable of performing the method and will include: means for introducing an aqueous solution of urea into a reactor having hot gases therein and subjecting the aqueous to temperatures for a time to assure the gasification of the aqueous urea and form a thermal gasification product stream containing NH3 and HNCO; means for taking a sample stream from the gasification product stream; means for contacting the sample stream with a hydrolysis catalyst in the presence of sufficient water to convert HNCO to NH3 and form an ammonia sample stream; and means for analyzing the ammonia sample stream for NH3. The methods and apparatus can also be used to control a urea gasification process and/or to signal anomalous operation.
    Type: Application
    Filed: May 3, 2012
    Publication date: November 15, 2012
    Applicant: FUEL TECH, INC.
    Inventors: William H. Sun, John M. Boyle
  • Publication number: 20120282594
    Abstract: Sensors based on single-walled carbon nanotubes and graphene which demonstrate extreme sensitivity as reflected in their electrical conductivity to gaseous molecules, such as NO, NO2 and NH3, when exposed to in situ ultraviolet (UV) illumination during measurement of the analytes are disclosed. The sensors are capable of detection limits of NO down to almost 150 parts-per-quadrillion (“ppq”), detection limits of NO2 to 2 parts-per-trillion (“ppt”), and detection limits of NH3 of 33 ppt.
    Type: Application
    Filed: May 8, 2012
    Publication date: November 8, 2012
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Gugang CHEN, Avetik R. HARUTYUNYAN
  • Publication number: 20120276647
    Abstract: A chemical indicator comprises a particulate inorganic substrate, and at least one reactive dye or ink coated on and/or impregnated within the particulate inorganic substrate. Coating and/or impregnating at least one reactive dye or ink on or within a particulate inorganic substrate improves the storage stability and/or thermal stability of the at least one reactive dye or ink, which typically comprises relatively unstable compounds. This allows the present indicators to be incorporated into thermoplastic polymer materials and processed conventionally while maintaining the efficacy and stability of the new indicators. The indicators provide simple, reliable, and cost effective detection means for detecting analytes such as ammonia, carbon dioxide, and oxygen, and may find use in applications such as food packaging and medical applications.
    Type: Application
    Filed: October 14, 2010
    Publication date: November 1, 2012
    Applicant: UNIVERSITY OF STRATHCLYDE
    Inventors: Andrew Mills, Pauline Grosshans, Graham Skinner
  • Publication number: 20120164743
    Abstract: A microchannel chip having a microchannel formed in a substrate and a gas-liquid phase separation microchannel whose upper part is covered with a porous film, the gas-liquid phase separation microchannel being connected to the downstream end of the microchannel and having a depth of 10 ?m to 100 ?m. Also, a gas-liquid phase separation method which is a method for separating a liquid-phase flow from a two-phase flow flowing through a microchannel by removing a gas phase, the two-phase flow composed of the gas phase and the liquid phase, which liquid phase flows in the periphery of the above-described microchannel and which gas phase flows interiorly of the liquid-phase flow.
    Type: Application
    Filed: March 31, 2010
    Publication date: June 28, 2012
    Applicants: INSTITUTE OF MICROCHEMICAL TECHNOLOGY CO., LTD., KANAGAWA ACADEMY OF SCIENCE AND TECHNOLOGY, THE UNIVERSITY OF TOKYO
    Inventors: Arata Aota, Yuko Kihira, Mari Sasaki, Takehiko Kitamori, Kazuma Mawatari
  • Publication number: 20120115239
    Abstract: Vapochromic coordination polymers useful for analyte detection are provided. The vapochromism may be observed by visible color changes, changes in luminescence, and/or spectroscopic changes in the infrared (IR) signature. One or more of the above chromatic changes may be relied upon to identify a specific analyte, such as a volatile organic compound or a gas. The chromatic changes may be reversible to allow for successive analysis of different analytes. The polymer has the general formula MW[M?X(Z)Y]N wherein M and M? are the same or different metals capable of forming a coordinate complex with the Z moiety; Z is selected from the group consisting of halides, pseudohalides, thiolates, alkoxides and amides; W is between 1-6; X and Y are between 1-9; and N is between 1-5. One embodiment provides [Metal(CN)2]-based coordination polymers with vapochromic properties, such as Cu[Au(CN)2]2 and Zn[Au(CN)2]2 polymers.
    Type: Application
    Filed: October 21, 2011
    Publication date: May 10, 2012
    Inventors: Julie LEFEBVRE, Michael Iacov KATZ, Daniel B. LEZNOFF
  • Patent number: 8158437
    Abstract: The present invention generally relates to methods for modulating the optical properties of a luminescent polymer via interaction with a species (e.g., an analyte). In some cases, the present invention provides methods for determination of an analyte by monitoring a change in an optical signal of a luminescent polymer upon exposure to an analyte. Methods of the present invention may be useful for the vapor phase detection of analytes such as explosives and toxins. The present invention also provides methods for increasing the luminescence intensity of a polymer, such as a polymer that has been photobleached, by exposing the luminescent polymer to a species such as a reducing agent.
    Type: Grant
    Filed: August 2, 2007
    Date of Patent: April 17, 2012
    Assignee: Massachusetts Institute of Technology
    Inventors: Timothy M. Swager, Samuel W. Thomas, III
  • Publication number: 20120028363
    Abstract: The invention provides a metal porous material, a method for preparing the same, and a method for detecting nitrogen-containing compounds. The method for fabricating metal porous material includes: mixing a siloxane, a metal or metallic compound, and water, to obtain a mixture after stirring; modifying the mixture to a pH value of less than 7; subjecting the mixture to a first dry treatment to obtain a solid; after polishing the solid to obtain a powder, subjecting the powder to a second dry treatment. It should be noted that the method is free of any annealing or calcination process.
    Type: Application
    Filed: May 20, 2011
    Publication date: February 2, 2012
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chun-Nan Kuo, Shou-Nan Li, Shaw-I Yen, Yu-Lun Lai, Jung-Nan Hsu
  • Publication number: 20120009687
    Abstract: The present invention relates to chemical sensors with hybrid characteristics, which are thermo-mechanically stable and able to respond to changes in the environment, particularly in the presence of amine and/or amide and/or oxide-reducing compounds, and/or vapor thereof by color change, as well as its incorporation into sensitive polymeric composition.
    Type: Application
    Filed: June 22, 2009
    Publication date: January 12, 2012
    Applicants: Universidade Federal Do Rio Grande Do Sul, Braskem S.A.
    Inventors: Edwin Moncada Acevedo, Gilvan Pozzobon Pires, João Henrique Zimnoch Dos Santos
  • Publication number: 20110306140
    Abstract: The invention relates to using heterobimetallic coordination polymers and their uses as chemodosimeters for sensing materials for the screening of specific biogenic amines.
    Type: Application
    Filed: June 10, 2010
    Publication date: December 15, 2011
    Applicant: CITY UNIVERSITY OF HONG KONG
    Inventors: Hon-Wah LAM, Cheuk-Fai CHOW
  • Patent number: 8065906
    Abstract: The present invention describes methods and kits for determining the concentration of free chlorine in water. To avoid false readings from other species present in the water, the free chlorine is reacted with ammonia to form monochloramine, which is then reacted to form an indophenol or an indonaphthol. The concentration of the indophenol or indonaphthol is proportional to the total monochloramine present. Subtracting the concentration of residual monochloramine from the total monochloramine yields the concentration of monochloramine formed from the free chlorine and ammonia, and is proportional to the concentration of free chlorine. Embodiments of the present invention will simplify and accelerate accurate measurements of free chlorine in water, without interference from compounds impacting present measurements of free chlorine.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: November 29, 2011
    Assignee: Hach Company
    Inventor: Patrick M. Wiese
  • Publication number: 20110275985
    Abstract: Disclosed are magnetic nanosensors or transducers that permit measurement of a physical parameter in an analyte via magnetic reasonance measurements, in particular of non-agglomerative assays. More particularly, in certain embodiments, the invention relates to designs of nanoparticle reagents and responsive polymer coated magnetic nanoparticles. Additionally provided are methods of use of nanoparticle reagents and responsive polymer coated magnetic nanoparticles for the detection of a stimulus or an analyte with NMR detectors.
    Type: Application
    Filed: July 2, 2009
    Publication date: November 10, 2011
    Applicant: T2 Biosystems, Inc.
    Inventors: Thomas Jay Lowery, JR., James J. Koziarz, Douglas A. Levinson, David A. Berry, Tuan A. Elstrom, Sonia Kumar, Mark John Audeh
  • Publication number: 20110244585
    Abstract: A device is disclosed for detecting at least one chemical compound comprising at least one carbon nanotube with several graphene layers, on which is grafted at least one molecule bearing group G1 capable of reacting with the chemical compound or a precursor of such a group G1. The uses and the method of making such a device is also disclosed.
    Type: Application
    Filed: September 28, 2009
    Publication date: October 6, 2011
    Applicant: Commissariat a l'energie atomique et aux energies alternatives
    Inventors: Martine Mayne-L'Hermite, Serge Palacin, Pascale Chenevier, Jérôme Chancolon, Aurélien Gohier
  • Patent number: 7977156
    Abstract: A method for manufacturing chip stack packages may include: providing at least two wafers, each wafer having a plurality of chips, and scribe lanes formed between and separating adjacent chips; forming a plurality of via holes in peripheral portions of the scribe lanes; forming connection vias by filling the via holes; establishing electrical connections between the chip pads and corresponding connection vias; removing material from the back sides of the wafers to form thinned wafers; separating the thinned wafers into individual chips by removing a central portion of each scribe lane; attaching a first plurality of individual chips to a test wafer; attaching a second plurality of individual chips to the first plurality of individual chips to form a plurality of chip stack structures; encapsulating the plurality of chip stack structures; and separating the plurality of chip stack structures to form individual chip stack packages.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: July 12, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kang-Wook Lee, Gu-Sung Kim, Dong-Hyeon Jang, Seung-Duk Baek, Jae-Sik Chung
  • Patent number: 7871823
    Abstract: Data on a secular change of each denitration catalyst is managed based on data obtained by a periodic maintenance and a daily management. Management of a secular change and prediction on performance variations that occur until a next periodic check is performed. It is determined whether the denitration catalyst is deteriorated such that an exhaust-gas denitration system cannot maintain its performance. When the denitration catalyst is deteriorated, regeneration, replacement, or addition of the denitration catalyst is performed, and the denitration catalyst is altered as necessary. When the denitration catalyst is usable, the denitration catalyst is not replaced nor regenerated.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: January 18, 2011
    Assignee: The Chugoku Electric Power Co., Inc.
    Inventors: Hiroshi Shimada, Yousuke Oka
  • Publication number: 20100279420
    Abstract: A stabilised thylakoid membrane formulation comprising thylakoid membranes in a buffered solution and liposomes, wherein the formulation has a ratio of chlorophyll/liposomes of at least about 10:1. The invention further comprises a method for detecting or quantifying the presence of toxic molecules in a fluid sample, comprising obtaining a stabilised thylakoids membranes formulation; and assessing the photosynthetic efficiency of the thylakoid membranes formulation in the presence of said sample, whereby the molecules are detected when the photosynthetic efficiency is measurably different in the presence versus in the absence of the sample. The present invention also comprises kits using the stabilised thylakoid membranes formulation for detecting and/or quantifying the toxic molecule in a fluid sample.
    Type: Application
    Filed: April 21, 2010
    Publication date: November 4, 2010
    Inventors: François BELLEMARE, Nathalie Boucher, Lucie Lorrain
  • Patent number: 7771654
    Abstract: An apparatus for monitoring ammonia in gaseous streams, particularly in flue gas streams. The apparatus is transportable but can be permanently installed. The flue gas can be monitored in real time.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: August 10, 2010
    Inventors: Randall P. Moore, Robert L. Mullowney, Jr.
  • Publication number: 20100197034
    Abstract: Used is a sample holder for MALDI mass spectrometry, which has a CuO secondary particle as a laser-beam-absorbing matrix and in which the secondary particle comprises an aggregate of CuO primary particles having an average particle diameter of 100 nm or smaller and has an uneven surface arising from the shape formed by the primary particles constituting the outermost surface of the secondary particle. As the CuO secondary particle, usable is one derived from a CuO powder produced by baking basic copper carbonate in air at 200 to 300° C., and the basic copper carbonate is produced in a process of mixing an aqueous ammonium hydrogencarbonate solution and an aqueous copper nitrate solution. The CuO secondary particle has an average particle diameter of, for example, from 0.3 to 10 ?m.
    Type: Application
    Filed: June 25, 2008
    Publication date: August 5, 2010
    Inventors: Tetsu Yonezawa, Kimitaka Sato
  • Patent number: 7759122
    Abstract: The present invention provides a method of testing an NOx removal catalyst, which method enables assessment of actual catalytic performance in consideration of gas flow condition in the gas conduits of the NOx removal catalyst.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: July 20, 2010
    Assignee: The Chugoku Electric Power Co., Inc.
    Inventors: Tsuyoshi Chiyonobu, Hatsumi Chiyonobu, legal representative, Hiroshi Shimada
  • Patent number: 7687030
    Abstract: A hydrogen gas visualization device comprises a hydrogen sensor having a thin film layer formed on the surface of a substrate and a catalyst layer formed on the surface of the thin film layer which, when contacted by hydrogen gas contained in an atmosphere, hydrogenates the thin film layer and thereby changes the optical reflectance of the thin film layer, and one or more sensor faces provided with the hydrogen sensor. The hydrogen gas visualization device visualizes, on the sensor faces, the distribution of hydrogen gas contained in the atmosphere contacting the hydrogen sensor and thereby visualizes the existence and flow of the hydrogen gas.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: March 30, 2010
    Assignee: Kabushiki Kaisha ATSUMITEC
    Inventors: Naoki Uchiyama, Hiroyuki Matsumoto