TWO-DIMENSIONAL-MATERIAL-BASED FIELD-EFFECT TRANSISTOR FOR DETECTION OF PATHOGENS AND METHODS FOR MANUFACTURING

    公开(公告)号:US20250027902A1

    公开(公告)日:2025-01-23

    申请号:US18909305

    申请日:2024-10-08

    Abstract: In at least one illustrative embodiment, a field-effect transistor biosensor for detection of a pathogen includes a substrate and a channel formed from a two-dimensional monolayer or few-layer metal chalcogenide that is functionalized with a biorecognition element. The biorecognition element may be an antibody, such as an antibody for the SARS-COV-2 spike protein. A method for manufacturing the biosensor includes depositing an amorphous two-dimensional material on the substrate with pulsed laser ablation, crystallizing the amorphous two-dimensional material to generate a two-dimensional monolayer coupled to the substrate, and activating a surface of the two-dimensional material with the biorecognition element after crystallizing the amorphous two-dimensional material. The composition of the two-dimensional material may be tuned. The substrate may be photolithographically patterned. Other embodiments are described and claimed.

    Two-dimensional-material-based field-effect transistor for detection of pathogens and methods for manufacturing

    公开(公告)号:US12123845B2

    公开(公告)日:2024-10-22

    申请号:US17522421

    申请日:2021-11-09

    CPC classification number: G01N27/4145

    Abstract: In at least one illustrative embodiment, a field-effect transistor biosensor for detection of a pathogen includes a substrate and a channel formed from a two-dimensional monolayer or few-layer metal chalcogenide that is functionalized with a biorecognition element. The biorecognition element may be an antibody, such as an antibody for the SARS-CoV-2 spike protein. A method for manufacturing the biosensor includes depositing an amorphous two-dimensional material on the substrate with pulsed laser ablation, crystallizing the amorphous two-dimensional material to generate a two-dimensional monolayer coupled to the substrate, and activating a surface of the two-dimensional material with the biorecognition element after crystallizing the amorphous two-dimensional material. The composition of the two-dimensional material may be tuned. The substrate may be photolithographically patterned. Other embodiments are described and claimed.

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