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Field Effect Transistor

Field Effect Transistor

Field-effect transistors (FETs) are integral to electronic circuits and distinguished by their three-terminal setup: the gate, drain, and source. These transistors operate as unipolar devices, which utilize either electrons or holes as charge carriers, in contrast to bipolar transistors, which use both types of carriers. The primary function of the FET is to modulate the flow of these carriers from the source to the drain through a channel. The voltage difference between the gate and source...

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Related Experiment Video

Updated: Jul 9, 2025

Exploring Biomolecular Interaction Between the Molecular Chaperone Hsp90 and Its Client Protein Kinase Cdc37 using Field-Effect Biosensing Technology

Exploring Biomolecular Interaction Between the Molecular Chaperone Hsp90 and Its Client Protein Kinase Cdc37 using Field-Effect Biosensing Technology

Published on: March 31, 2022

Interface-Engineered Field-Effect Transistor Electronic Devices for Biosensing.

Yun Zhang¹, Duo Chen¹, Wang He¹

¹College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, Institute of Molecular Medicine, Renmin Hospital of Wuhan University, School of Microelectronics, Wuhan University, Wuhan, 430072, P. R. China.

Advanced Materials (Deerfield Beach, Fla.)

|December 4, 2023

Summary

This summary is machine-generated.

Field-effect transistor (FET) biosensors offer sensitive, label-free detection for molecular medicine. Interface engineering advances are crucial for developing next-generation FET biosensors for disease screening and health monitoring.

Keywords:

Debye screening biosensing electronic devices field‐effect transistor interface engineering

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Area of Science:

Biomedical Engineering
Nanotechnology
Molecular Medicine

Background:

Molecular medicine advances necessitate sensitive diagnostic tools.
Field-effect transistor (FET) biosensors offer rapid, label-free, and highly sensitive detection.
FET biosensors are suitable for disease screening and health monitoring.

Purpose of the Study:

To summarize advancements in high-performance FET biosensors over the past decade.
To emphasize interface engineering strategies for FET-based biomolecule identification.
To review applications and discuss future opportunities and challenges in FET biosensing.

Main Methods:

Overview of interface modulation engineering strategies.
Detailed discussion of recognition element design.
Comprehensive review of FET biosensor applications in vitro and in vivo.

Main Results:

Significant progress in FET biosensor development over the last ten years.
Effective interface engineering strategies enhance biomolecule identification.
Demonstrated applications in in vitro detection and real-time biological monitoring.

Conclusions:

Interface engineering is key to developing sensitive, specific, and stable FET biosensors.
Further research can inspire novel techniques for next-generation biosensing electronics.
FET biosensors hold great potential for future diagnostics and health monitoring.