CASCADE SPOOF PROOF EXTRA-LAYER RADIANT AUTHENTICATION (CASPER-A) SYSTEM AND METHOD USING SPECTRALLY-CODED TAGGANTS

    公开(公告)号:US20240028941A1

    公开(公告)日:2024-01-25

    申请号:US17871105

    申请日:2022-07-22

    CPC classification number: G06N10/40 H04L9/0852 H04L9/3278 B82Y10/00

    Abstract: A Cascade Spoof Proof Extra-layer Radiant Authentication (CASPER-A) system using spectrally-coded taggants is configured to transmit a multi-wavelength optical interrogation signal to interrogate a nanotag associated with a device. A multi-spectral optical receiver may be configured to receive and decode a response to the interrogation signal that may comprise a multi-spectral emission generated by the nanotag. Processing circuitry may generate data from the decoded response. To authenticate the device associated with the nanotag, the processing circuitry may generate a digital signature. The nanotag may comprise a multi-layered nanocrystal (NC) activated composite material comprising multiple layers configured to generate a multi-spectral emission from optical excitation by the optical interrogation signal. Each layer may comprise a heterogeneously dispersed volume embedded with quantum dots (Qdots). The Qdots may be configured to generate a multi-spectral emission based on an interaction of one or more wavelengths among Qdot emitters by intercoupling.

    PROGRAMMABLE STRUCTURAL BUILDING BLOCKS

    公开(公告)号:US20220194785A1

    公开(公告)日:2022-06-23

    申请号:US17129197

    申请日:2020-12-21

    Abstract: A structural molecular building block is provided and includes first structural molecules arranged in a three-dimensional structure and second structural molecules. Each of the second structural molecules is attached at a first region thereof to one of the first structural molecules to form the three-dimensional structure into a tessellating molecular building block and has a second region thereof for connection to a corresponding structural molecule of an additional tessellating molecular building block. The second structural molecules facilitate tessellation of the tessellating molecular building block with additional tessellating molecular building blocks to encourage growth of a macroscopic crystal.

    SAW-based hydrogel testing for detecting viruses or other antigens

    公开(公告)号:US11898987B2

    公开(公告)日:2024-02-13

    申请号:US17017398

    申请日:2020-09-10

    CPC classification number: G01N29/022 G01N29/14 G01N33/559 G01N33/56983

    Abstract: An apparatus includes a surface acoustic wave (SAW) sensor. The SAW sensor includes a piezoelectric substrate. The SAW sensor also includes first and second interdigitating transistors over the piezoelectric substrate. The first interdigitating transistor is configured to convert an input electrical signal into an acoustic wave. The second interdigitating transistor is configured to convert the acoustic wave into an output electrical signal. The piezoelectric substrate is configured to transport the acoustic wave. The SAW sensor further includes a detection layer over the piezoelectric substrate and positioned at least partially between the first and second interdigitating transistors. The detection layer includes (i) antibodies configured to bind to one or more biological analytes and (ii) a hydrogel layer over the antibodies.

    Programmable structural building blocks

    公开(公告)号:US11939213B2

    公开(公告)日:2024-03-26

    申请号:US17129197

    申请日:2020-12-21

    CPC classification number: B81C1/00031 B81C2201/0149 B82Y5/00 B82Y40/00

    Abstract: A structural molecular building block is provided and includes first structural molecules arranged in a three-dimensional structure and second structural molecules. Each of the second structural molecules is attached at a first region thereof to one of the first structural molecules to form the three-dimensional structure into a tessellating molecular building block and has a second region thereof for connection to a corresponding structural molecule of an additional tessellating molecular building block. The second structural molecules facilitate tessellation of the tessellating molecular building block with additional tessellating molecular building blocks to encourage growth of a macroscopic crystal.

    SAW-BASED HYDROGEL TESTING FOR DETECTING VIRUSES OR OTHER ANTIGENS

    公开(公告)号:US20220074894A1

    公开(公告)日:2022-03-10

    申请号:US17017398

    申请日:2020-09-10

    Abstract: An apparatus includes a surface acoustic wave (SAW) sensor. The SAW sensor includes a piezoelectric substrate. The SAW sensor also includes first and second interdigitating transistors over the piezoelectric substrate. The first interdigitating transistor is configured to convert an input electrical signal into an acoustic wave. The second interdigitating transistor is configured to convert the acoustic wave into an output electrical signal. The piezoelectric substrate is configured to transport the acoustic wave. The SAW sensor further includes a detection layer over the piezoelectric substrate and positioned at least partially between the first and second interdigitating transistors. The detection layer includes (i) antibodies configured to bind to one or more biological analytes and (ii) a hydrogel layer over the antibodies.

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