用电解门控TFT和循环伏安法表征传感应用的修饰工作电极

2017 7th IEEE International Workshop on Advances in Sensors and Interfaces (IWASI) Pub Date : 2017-06-15 DOI:10.1109/IWASI.2017.7974216

Brigitte Holzer, K. Manoli, N. Ditaranto, E. Macchia, C. Franco, G. Scamarcio, L. Torsi

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引用次数: 0

摘要

利用循环伏安法表征功能化电极是开发基于电化学的生物传感器的重要一步。本文提出了一种电解质门控薄膜晶体管(EG-TFT)装置，利用半导体参数分析仪获得循环伏安图和晶体管转移特性。在使用EG-TFT的栅电极作为工作电极的这种设置中，研究了探针的氧化还原行为，并将其与传统的三电极电化学电池设置进行了比较。通过egg - tft装置获得的互补技术用于研究通过金工作电极表面的自组装单层膜固定蛋白质。

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

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.

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2017 7th IEEE International Workshop on Advances in Sensors and Interfaces (IWASI)

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