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Updated: Aug 8, 2025

Sensing of Barrier Tissue Disruption with an Organic Electrochemical Transistor
Published on: February 10, 2014
Flexible Organic Transistors for Biosensing: Devices and Applications.
Jiajun Song1, Hong Liu1, Zeyu Zhao1
1Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, P. R. China.
Flexible and stretchable biosensors utilizing organic thin film transistors (OTFTs) offer advanced biological-electronic interfaces. This review details OTFTs, functionalization, and applications in wearable and implantable devices, highlighting future opportunities.
Area of Science:
- Materials Science
- Biotechnology
- Electronics Engineering
Background:
- Flexible and stretchable biosensors enable continuous, high-fidelity signal acquisition for novel applications.
- Organic thin film transistors (OTFTs) are highly suitable for biosensing due to their inherent properties and versatility.
Purpose of the Study:
- To provide a comprehensive review of flexible and stretchable OTFT-based biosensors.
- To cover OTFT types, functionalization strategies, applications, and future prospects.
Main Methods:
- Review of existing literature on OTFTs and biosensor applications.
- Discussion of functionalization strategies for enhanced biosensing.
- Analysis of structural and material engineering for stretchable organic transistors.
Main Results:
- Detailed overview of organic field-effect transistors (OFETs) and organic electrochemical transistors (OECTs).
- Exploration of applications in wearable, implantable, and portable electronics, and neuromorphic interfaces.
- Examination of stretchable organic transistors, including e-skin and smart textile implementations.
Conclusions:
- Flexible and stretchable OTFTs are crucial for advanced biosensing applications.
- Significant progress has been made, but challenges remain in device performance and integration.
- Future opportunities lie in developing novel materials and device architectures for enhanced functionality and broader adoption.
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