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公开(公告)号：US20230279582A1
公开(公告)日：2023-09-07
申请号：US18129829
申请日：2023-04-01
Applicant: MATRIX SENSORS, INC.
Inventor： David K Britt , Paul R Wilkinson , Steven Yamamoto
Abstract: An apparatus and method is provided for coating a surface of a material with a film of porous coordination polymer. A first substrate having a first surface to be coated is positioned in a processing chamber such that the first surface is placed in a substantially opposing relationship to a second surface. In some embodiments, the second surface is provided by a wall of the processing chamber, and in other embodiments the second surface is provided by a second substrate to be coated. The first substrate is held such that a gap exists between the first and second surfaces, and the gap is filled with at least one reaction mixture comprising reagents sufficient to form the crystalline film on at least the first surface. A thin gap (e.g., having a thickness less than 2 mm) between the first and second surfaces is effective for producing a high quality film having a thickness less than 100 μm. Confining the volume of the reaction mixture to a thin layer adjacent the substrate surface significantly reduces problems with sedimentation and concentration control. In some embodiments, the size, shape, or average thickness of the gap is adjusted during formation of the film in response to feedback from at least one film growth monitor.
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公开(公告)号：US11714066B2
公开(公告)日：2023-08-01
申请号：US17470748
申请日：2021-09-09
Applicant: MATRIX SENSORS, INC.
Inventor： David K Britt , Paul R Wilkinson , Steven Yamamoto
IPC: G01N29/036 , G01N27/22 , G01K11/26 , F25B21/04 , G01N33/00
CPC classification number: G01N29/036 , F25B21/04 , G01K11/26 , G01N27/223 , G01N33/004 , G01N2291/014 , G01N2291/021
Abstract: A sensor device comprises at least one transducer and a sensing material disposed on the transducer. The sensing material adsorbs or absorbs an amount of analyte (e.g., a target gas) that depends on a temperature of the sensing material and a concentration of the analyte. At least one detector is arranged to measure responses of the transducer to sorption or desorption of the analyte in the sensing material while the sensing material is heated and/or cooled according to at least one temperature profile. The device also comprises a humidity sensor that is arranged to detect a humidity level of the environment or sample containing the analyte. A processor or controller is programmed to determine the quantity (e.g., concentration) of the analyte by comparing values of the transducer measurement signals to reference data indicative of expected or pre-measured responses of the transducer to known concentrations of the analyte at the same humidity level as indicated by the humidity sensor while the sensing material is subjected to the same or similar temperature profile.
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公开(公告)号：US10436737B2
公开(公告)日：2019-10-08
申请号：US15872999
申请日：2018-01-17
Applicant: MATRIX SENSORS, INC.
Inventor： Heinrich Sussner , Paul R Wilkinson , Steven Yamamoto , David K Britt
IPC: A61B5/055 , G01N27/327 , G01N27/02 , G01N29/00 , G01N29/02 , G01N29/036 , G01N29/24 , G01N29/44 , A61B5/00 , A61B5/145
Abstract: A device and method are provided for detecting analyte with correction for the effects of humidity. The device comprises a resonant sensor having an oscillating portion. A capacitor is positioned on the oscillating portion. The capacitor is formed by at least two electrodes and a sensing material positioned between the electrodes. A readout circuit is arranged to measure a response of the oscillating portion (e.g., frequency shift or change in resonance frequency, stiffness or strain) and a capacitance of the capacitor when substances are adsorbed or absorbed in the sensing material. This combination of measurements enables the device to distinguish between various types of adsorbed or absorbed molecules, especially distinguishing between an analyte of interest and water molecules that might interfere with the detection of the analyte. A processor determines an analyte value indicative of the presence, amount or concentration of the analyte in dependence upon measurements of both the response of the oscillating portion and the capacitance to account for the effects of water in the sensing material.
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公开(公告)号：US10036730B2
公开(公告)日：2018-07-31
申请号：US14592896
申请日：2015-01-08
Applicant: MATRIX SENSORS, INC.
Inventor： Paul R Wilkinson , Steven Yamamoto
IPC: G01N29/036 , G01N29/02 , G01N29/24
CPC classification number: G01N29/036 , G01N29/022 , G01N29/2406 , G01N29/2437 , G01N2291/0256 , G01N2291/0427 , G01N2291/106
Abstract: A sensor array comprises resonant sensors and porous receptor materials arranged on the resonant sensors to absorb or adsorb one or more analytes. The average pore size of the porous receptor materials on the sensors increases systematically from one sensor to the next in the array. At least one detector is arranged to detect responses of the resonant sensors when the array is exposed to a sample potentially containing one or more of the analytes. In some embodiments, a processor is programmed to determine from the sensor responses the presence, amount or relative concentration of target molecules in the sample.
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公开(公告)号：US10605778B2
公开(公告)日：2020-03-31
申请号：US16118159
申请日：2018-08-30
Applicant: MATRIX SENSORS, INC.
Inventor： David K Britt , Paul R Wilkinson , Steven Yamamoto
IPC: G01N29/02 , G01N29/036 , G01N29/32 , G01N33/00 , G01N29/22
Abstract: A gas sensor comprises at least one transducer and a sensing material (e.g., a metal-organic framework) disposed on the transducer. The sensing material has a temperature-dependent gas sorption behavior. A detector is arranged to detect responses of the transducer to sorption and/or desorption of a target gas in the sensing material and to output transducer measurement signals indicative of the transducer responses. At least one thermal element changes the temperature of the sensing material by heating and/or cooling, and at least one temperature sensor (which may be integral with the thermal element) is arranged to measure a temperature of the sensing material. At least one processor determines the quantity (e.g., concentration, partial pressure, or mass) of the target gas according to the temperature of the sensing material at which the transducer measurement signals satisfy a signal value condition.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20170173623A1
公开(公告)日：2017-06-22
申请号：US15383548
申请日：2016-12-19
Applicant: MATRIX SENSORS, INC.
Inventor： David K. Britt , Paul R Wilkinson , Steven Yamamoto
CPC classification number: B01J20/226
Abstract: An apparatus and method is provided for coating a surface of a material with at least one film of porous coordination polymer. A body (e.g., a flow cell) has an interior space for holding the material to be coated, at least one inlet, and at least one outlet in communication with the interior space to permit fluid to flow in a downstream direction from the inlet, across the surface of the material in the interior space, and through the outlet. A plurality of flow channels are arranged to flow a plurality of different reagent solutions from respective supply sources to the at least one inlet. The flow channels merge into at least one mixing region, positioned upstream of the interior space, to mix the solutions prior to the mixture contacting the surface of the material in the interior space. At least one pressure source and valve system are arranged with the supply sources and the flow channels to select at least one combination of the reagent solutions to be mixed and to force the selected reagent solutions to flow from their respective supply sources, through the flow channels, and into the mixing region at independently controllable flow rates to regulate respective concentrations of reagents in the mixture.
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公开(公告)号：US11643751B2
公开(公告)日：2023-05-09
申请号：US17198204
申请日：2021-03-10
Applicant: MATRIX SENSORS, INC.
Inventor： David K Britt , Paul R Wilkinson , Steven Yamamoto
Abstract: An apparatus and method is provided for coating a surface of a material with a film of porous coordination polymer. A first substrate having a first surface to be coated is positioned in a processing chamber such that the first surface is placed in a substantially opposing relationship to a second surface. In some embodiments, the second surface is provided by a wall of the processing chamber, and in other embodiments the second surface is provided by a second substrate to be coated. The first substrate is held such that a gap exists between the first and second surfaces, and the gap is filled with at least one reaction mixture comprising reagents sufficient to form the crystalline film on at least the first surface. A thin gap (e.g., having a thickness less than 2 mm) between the first and second surfaces is effective for producing a high quality film having a thickness less than 100 μm. Confining the volume of the reaction mixture to a thin layer adjacent the substrate surface significantly reduces problems with sedimentation and concentration control. In some embodiments, the size, shape, or average thickness of the gap is adjusted during formation of the film in response to feedback from at least one film growth monitor.
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公开(公告)号：US20220082525A1
公开(公告)日：2022-03-17
申请号：US17470748
申请日：2021-09-09
Applicant: MATRIX SENSORS, INC.
Inventor： David K Britt , Paul R Wilkinson , Steven Yamamoto
IPC: G01N29/036 , G01N27/22 , G01K11/26 , G01N33/00 , F25B21/04
Abstract: A sensor device comprises at least one transducer and a sensing material disposed on the transducer. The sensing material adsorbs or absorbs an amount of analyte (e.g., a target gas) that depends on a temperature of the sensing material and a concentration of the analyte. At least one detector is arranged to measure responses of the transducer to sorption or desorption of the analyte in the sensing material while the sensing material is heated and/or cooled according to at least one temperature profile. The device also comprises a humidity sensor that is arranged to detect a humidity level of the environment or sample containing the analyte. A processor or controller is programmed to determine the quantity (e.g., concentration) of the analyte by comparing values of the transducer measurement signals to reference data indicative of expected or pre-measured responses of the transducer to known concentrations of the analyte at the same humidity level as indicated by the humidity sensor while the sensing material is subjected to the same or similar temperature profile.
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公开(公告)号：US12059703B2
公开(公告)日：2024-08-13
申请号：US17476469
申请日：2021-09-15
Applicant: MATRIX SENSORS, INC.
Inventor： David K Britt , Paul R Wilkinson , Steven Yamamoto
CPC classification number: B05C5/004 , B05C5/0225 , B05C11/1005 , B05C13/02 , B05C15/00 , G01N29/022 , G01N2291/0426
Abstract: A method is provided for coating a surface of a material with a film of porous coordination polymer. A first substrate having a first surface to be coated is positioned in a processing chamber such that the first surface is placed in an opposing relationship to a second surface. The second surface may be provided by a wall of the processing chamber, or in some cases the second surface may be provided by a second substrate to be coated. The first substrate is held such that a gap exists between the first and second surfaces, and the gap is filled with at least one reaction mixture comprising reagents sufficient to form the crystalline film on at least the first surface. A thin gap (e.g., less than 2 mm) between the first and second surfaces is effective for producing a high quality film having a thickness less than 100 μm. Confining the volume of the reaction mixture to a thin layer adjacent the substrate surface significantly reduces problems with sedimentation and concentration control. The size, shape, or average thickness of the gap may be adjusted during formation of the film in response to feedback from at least one film growth monitor.
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公开(公告)号：US20240151668A1
公开(公告)日：2024-05-09
申请号：US18387847
申请日：2023-11-07
Applicant: Matrix Sensors, Inc.
Inventor： Paul R Wilkinson , Thomas D Carr
IPC: G01N25/68
CPC classification number: G01N25/68
Abstract: A device for measuring dew point or humidity comprises a single resonator and at least one temperature-regulating element arranged to control the temperature of the resonator by heating and/or cooling. Frequency measuring circuitry is arranged to generate signals indicative of measured frequencies of the resonator. At least one controller or processor receives the signals and determines the temperature of the resonator at which condensation (e.g., dew, frost, or condensed vapor) appears on the resonator or evaporates from the resonator according to the signals.
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