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

Brigitte Holzer, Kyriaki Manoli, Nicoletta Ditaranto, Eleonora Macchia, Cinzia Di Franco, Gaetano Scamarcio, Luisa Torsi

Research output: Chapter in Book/Conference proceedingConference contributionScientificpeer-review

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.
Original languageEnglish
Title of host publication2017 7th IEEE International Workshop on Advances in Sensors and Interfaces (IWASI)
PublisherIEEE
ISBN (Print)978-1-5090-6707-0
DOIs
Publication statusPublished - 2017
MoE publication typeA4 Article in a conference publication
Event 2017 7th IEEE International Workshop on Advances in Sensors and Interfaces - Vieste, Italy
Duration: 15 Jun 201716 Jun 2017

Conference

Conference 2017 7th IEEE International Workshop on Advances in Sensors and Interfaces
Abbreviated titleIWASI
CountryItaly
CityVieste
Period15/06/1716/06/17

Keywords

  • cyclic voltammetry
  • electrolyte-gated thin-film transistors (EG-TFT)
  • biofunctionalization

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