Comparative investigation of extended-gate GaAsSb/InGaAs HTFET biosensors for label-free biomolecule detection
Mahin Anjum, Md. Mehedi Hasan, Md. Feroz Ali, Md Shafiul Alam, Obaidullah Obaidi · 2026
Read Comparative investigation of extended-gate GaAsSb/InGaAs HTFET biosensors for label-free biomolecule detection by Mahin Anjum, Md. Mehedi Hasan, Md. Feroz Ali, Md Shafiul Alam, Obaidullah Obaidi (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13672727.txt.
Description
Tiny transistors can act as sensors that detect biological molecules without any labels or dyes. Mahin Anjum and co-authors compare three such sensor designs in a 2026 paper. All three are built from layered gallium and indium arsenide materials and use a small cavity where molecules settle and change the current flow.
The designs differ in how many cavities and gate layers they carry. In simulations, the extended-gate version carried the strongest current and reached the highest sensitivity to test molecules, both neutral and charged. A simpler design proved best at telling different molecules apart on some measures. The authors map these trade-offs to guide engineers building fast, low-power biosensors for medical and lab use.
Catalog record
| CREATOR | Mahin Anjum, Md. Mehedi Hasan, Md. Feroz Ali, Md Shafiul Alam, Obaidullah Obaidi |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 50 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |