This chapter provides an introduction to different types of organic thin‐film transistors (OTFTs) and their working principle. It refers to the architectures proposed for fabricating OTFT sensors and the protocols adopted for realizing sensing measurements. The chapter emphasizes the most recent advances in the field of OTFT sensors in terms of device development and applications. It presents an overview of biosensing applications using OTFTs by dividing them into two categories: OTFTs with solid dielectric and electrolyte‐gated OTFT biosensors. Biosensors incorporate biological molecules, such as enzymes, DNA, antibody, and bacteria, as biorecognition elements for sensing analytes. In the biosensors, the electrical properties are directly affected by the biorecognition event, avoiding the addition of tracers or labels used in optical or electrochemical transistor (ECT) non‐label‐free transducers. With the advent of the concept of green electronics, there is increasing importance of low‐cost, low‐power and flexible biosensors in the field of health care, quality of food, and drug development.

Biocompatible Devices and Sustainable Processes for Green Electronics

Manoli, Kyriaki;Mulla, Mohammad Yusuf;Seshadri, Preethi;Tiwari, Amber;Singh, Mandeep;Magliulo, Maria;Palazzo, Gerardo;Torsi, Luisa
2017-01-01

Abstract

This chapter provides an introduction to different types of organic thin‐film transistors (OTFTs) and their working principle. It refers to the architectures proposed for fabricating OTFT sensors and the protocols adopted for realizing sensing measurements. The chapter emphasizes the most recent advances in the field of OTFT sensors in terms of device development and applications. It presents an overview of biosensing applications using OTFTs by dividing them into two categories: OTFTs with solid dielectric and electrolyte‐gated OTFT biosensors. Biosensors incorporate biological molecules, such as enzymes, DNA, antibody, and bacteria, as biorecognition elements for sensing analytes. In the biosensors, the electrical properties are directly affected by the biorecognition event, avoiding the addition of tracers or labels used in optical or electrochemical transistor (ECT) non‐label‐free transducers. With the advent of the concept of green electronics, there is increasing importance of low‐cost, low‐power and flexible biosensors in the field of health care, quality of food, and drug development.
2017
9783527692958
9783527338658
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11586/211184
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