Mobile chemical analysis
    33.
    发明授权

    公开(公告)号:US11060968B2

    公开(公告)日:2021-07-13

    申请号:US15941692

    申请日:2018-03-30

    IPC分类号: G01N21/25 G01N21/27

    摘要: A target sample to be chemically analyzed is received at a microfluidic device which is part of an analysis card. The microfluidic device includes at least one input layer configured to receive the target sample, at least one intermediary layer, and at least one readout layer configured to present one or more color attributes at one or more readout regions in response to one or more colorimetric reactions to the target sample. An image of the readout layer of the microfluidic device is obtained. A calibration file that corresponds to the analysis card is obtained. The calibration file includes a calibrated model of at least one color attribute based on data from at least one known chemical attribute of at least one standard sample processed by a calibration card. A data processing function is executed on the obtained image by comparing the one or more color attributes at the one or more readout regions to the calibrated model of the at least one color attribute to determine at least one chemical attribute of the target sample.

    MOBILE CHEMICAL ANALYSIS
    36.
    发明申请

    公开(公告)号:US20190302008A1

    公开(公告)日:2019-10-03

    申请号:US15941692

    申请日:2018-03-30

    IPC分类号: G01N21/27 G01N21/25

    摘要: A target sample to be chemically analyzed is received at a microfluidic device which is part of an analysis card. The microfluidic device includes at least one input layer configured to receive the target sample, at least one intermediary layer, and at least one readout layer configured to present one or more color attributes at one or more readout regions in response to one or more colorimetric reactions to the target sample. An image of the readout layer of the microfluidic device is obtained. A calibration file that corresponds to the analysis card is obtained. The calibration file includes a calibrated model of at least one color attribute based on data from at least one known chemical attribute of at least one standard sample processed by a calibration card. A data processing function is executed on the obtained image by comparing the one or more color attributes at the one or more readout regions to the calibrated model of the at least one color attribute to determine at least one chemical attribute of the target sample.

    Particle manipulation and trapping in microfluidic devices using two-dimensional material

    公开(公告)号:US10386331B2

    公开(公告)日:2019-08-20

    申请号:US15093816

    申请日:2016-04-08

    摘要: Method, apparatus, and computer program product for a microfluidic channel having a cover opposite its bottom and having electrodes with patterned two-dimensional conducting materials, such as graphene sheets integrated into the top of its bottom. Using the two-dimensional conducting materials, once a fluid sample is applied into the channel, highly localized modulated electric field distributions are generated inside the channel and the fluid sample. This generated field causes the inducing of dielectrophoretic (DEP) forces. These DEP forces are the same or greater than DEP forces that would result using metallic electrodes because of the sharp edges enabled by the two-dimension geometry of the two-dimensional conducting materials. Because of the induced forces, micro/nano-particles in the fluid sample are separated into particles that respond to a negative DEP force and particles that respond to a positive DEP. Microfluidic chips with microfluidic channels can be made using standard semiconductor manufacturing technology.

    MINIATURIZED PRECISION AGRICULTURE
    38.
    发明申请

    公开(公告)号:US20190195851A1

    公开(公告)日:2019-06-27

    申请号:US15853884

    申请日:2017-12-25

    IPC分类号: G01N33/00 A01G9/02 G01N21/84

    摘要: A growth chamber chip includes a base surrounding a growth chamber; a growth medium within the growth chamber; a sensor package within the growth chamber; a sensor feedthrough extending from the sensor package through a portion of the base to an outer surface of the base; and a transparent seal covering the growth chamber. In one or more embodiments, the base includes a nutrient channel connected in fluid communication with the growth medium and exposed to an outer surface of the base. One or more embodiments provide an array of growth chamber chips, with a movable arm that is movable across the array to individually scan each of the growth chamber chips.