The characterization of functionalized electrodes by means of cyclic voltammetry constitutes an important step in the development of an electrochemical based biosensors. Herein an electrolyte gated thin-film transistor (EG-TFT) setup is proposed to acquire both cyclic voltammograms and transistor transfer characteristics using a semiconductor parameter analyzer. The redox behavior of a probe is studied in such a setup using the gate electrode of the EG-TFT as working electrode and it is compared to a conventional three electrode electrochemical cell setup. The complementary techniques acquirable by the EG-TFT setup are used to investigate protein immobilization via self-Assembled monolayers on the surface of gold working electrodes.

Characterization of modified working electrodes for sensing applications by means of electrolyte-gated TFT and cyclic voltammetry

Manoli, Kyriaki
;
Ditaranto, Nicoletta;Macchia, Eleonora;Scamarcio, Gaetano;Torsi, Luisa
2017-01-01

Abstract

The characterization of functionalized electrodes by means of cyclic voltammetry constitutes an important step in the development of an electrochemical based biosensors. Herein an electrolyte gated thin-film transistor (EG-TFT) setup is proposed to acquire both cyclic voltammograms and transistor transfer characteristics using a semiconductor parameter analyzer. The redox behavior of a probe is studied in such a setup using the gate electrode of the EG-TFT as working electrode and it is compared to a conventional three electrode electrochemical cell setup. The complementary techniques acquirable by the EG-TFT setup are used to investigate protein immobilization via self-Assembled monolayers on the surface of gold working electrodes.
2017
978-1-5090-6707-7
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11586/211146
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