Gas Permeable Electrode
    1.
    发明公开

    公开(公告)号:US20240077448A1

    公开(公告)日:2024-03-07

    申请号:US18242027

    申请日:2023-09-05

    CPC classification number: G01N27/225 G01N29/036

    Abstract: The disclosure provides a gas permeable electrode and method for making the electrode to create diffusion pathways (or pores) in the metal electrode in a manner that is not destructive to delicate or soft sensing material. A first polymer, which is gas-permeable, is applied as a continuous coating over a surface of the sensing material. A second polymer that is immiscible with the first polymer is applied over a surface of the first polymer (e.g., spray-dry deposition of the second polymer) to form a micro-pattern or a polymeric template. The incompatibility/immiscibility between the first polymer and the second polymer leads to segregation of the second polymer into a pattern of discontinuous bumps, dots, islands or blobs on top of the first polymer. The porous electrode comprises at least one layer of an electrically conductive metal that is deposited over the first and second polymers. Bumps of the second polymer promotes small cracks or voids in the metal electrode layer that enable fast diffusion of analytes through the electrode.

    Method For Producing a Crystalline Film on a Substrate Surface

    公开(公告)号:US20230279582A1

    公开(公告)日:2023-09-07

    申请号:US18129829

    申请日:2023-04-01

    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.

    Self-calibrating analyte sensor
    3.
    发明授权

    公开(公告)号:US11714066B2

    公开(公告)日:2023-08-01

    申请号:US17470748

    申请日:2021-09-09

    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.

    Method For Producing a Crystalline Film

    公开(公告)号:US20220001414A1

    公开(公告)日:2022-01-06

    申请号:US17476469

    申请日:2021-09-15

    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.

    APPARATUS AND METHOD FOR PRODUCING FILMS OF POROUS COORDINATION POLYMERS BY FLOW OF REAGENTS

    公开(公告)号:US20210387161A1

    公开(公告)日:2021-12-16

    申请号:US17458556

    申请日:2021-08-27

    Abstract: An apparatus and method is provided for coating a surface of a substrate with at least one film of porous coordination polymer. A body has an interior space for holding the substrate 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 substrate 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 substrate 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 different, independently controllable flow rates to regulate respective concentrations of reagents in the mixture.

    Array of Sensors Functionalized with Systematically Varying Receptor Materials
    6.
    发明申请
    Array of Sensors Functionalized with Systematically Varying Receptor Materials 审中-公开
    具有系统变化的受体材料功能化的传感器阵列

    公开(公告)号:US20140364325A1

    公开(公告)日:2014-12-11

    申请号:US13911003

    申请日:2013-06-05

    Abstract: A sensor array includes resonator sensors having respective receptor materials disposed thereon. The receptor materials have a physical property relevant to their ability to bind or adsorb one or more analytes in a sample. The physical property of the receptor materials on the sensors systematically increases or decreases in degree from one sensor to the next in the array. The device also comprises at least one detector for detecting sensor responses when masses of the analytes are adsorbed or bound to the receptor materials on the sensors. With this graded panel of sensors in the array, the analytes may adsorb or bind to the functionalized sensors with a pattern of responses specific to each analyte.

    Abstract translation: 传感器阵列包括其上设置有各自的受体材料的谐振器传感器。 受体材料具有与其结合或吸附样品中一种或多种分析物的能力相关的物理性质。 传感器上的受体材料的物理性质系统地从阵列中的一个传感器到下一个传感器的程度增加或减少。 该装置还包括至少一个检测器,用于当大量分析物被吸附或结合到传感器上的受体材料时检测传感器响应。 通过阵列中的这种分级传感器,分析物可以以特定于每种分析物的响应模式吸附或结合功能化传感器。

    Liquid analysis using capacitative micromachined ultrasound transducers
    7.
    发明授权
    Liquid analysis using capacitative micromachined ultrasound transducers 有权
    使用电容式微机械超声换能器进行液体分析

    公开(公告)号:US08733154B2

    公开(公告)日:2014-05-27

    申请号:US13851834

    申请日:2013-03-27

    Abstract: A method for analyzing liquid samples may comprise applying a liquid to a cMUT device having a plurality of sensors, drying the plurality of sensors, electronically detecting an agent bound to each of the plurality of sensors, wherein the electrical circuit provides a sensor output responsive to a mechanical resonance frequency of the sensor, wherein the mechanical resonance frequency of the sensor is responsive to the binding of an agent to the functionalized membrane, and determining the mass of the agent bound to each of the plurality of sensors.

    Abstract translation: 用于分析液体样品的方法可以包括向具有多个传感器的cMUT装置施加液体,干燥多个传感器,电子地检测绑定到多个传感器中的每一个的试剂,其中电路提供响应于 传感器的机械共振频率,其中传感器的机械共振频率响应于试剂与功能化膜的结合,以及确定结合到多个传感器中的每一个的试剂的质量。

    Method for producing a crystalline film

    公开(公告)号:US12059703B2

    公开(公告)日:2024-08-13

    申请号:US17476469

    申请日:2021-09-15

    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.

    Device and Method for Determining Dewpoint or Humidity

    公开(公告)号:US20240151668A1

    公开(公告)日:2024-05-09

    申请号:US18387847

    申请日:2023-11-07

    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.

    Method for producing a crystalline film on a substrate surface

    公开(公告)号:US11946160B2

    公开(公告)日:2024-04-02

    申请号:US18129829

    申请日:2023-04-01

    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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