Two-dimensional-material-based field-effect transistor for detection of pathogens and methods for manufacturing
US12123845B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 9, 2021 |
| Grant date | Oct 22, 2024 |
| Priority date | — |
| Expiry date | Nov 11, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB82Y15/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.