A Reconfigurable, Pulse-shaping Potentiometric Readout System for Bio-Sensing Transistors

Shao Yung Lu, Siang Sin Shan, Jiancheng Yang, Chin Wei Chang, Fan Ren, Jenshan Lin, Stephen Pearton, Yu-Te Liao

研究成果: Conference contribution同行評審

6 引文 斯高帕斯(Scopus)

摘要

This paper presents a new multi-modality readout system for potentiometric electrochemical sensors. The design adopts a pulse modulation at the gate and drain of the Bio-FET sensors to reduce the effects of charge accumulation between the surface of the electrodes and the ion analytes. The adjustable duration and amplitude of stimuli signals provide flexibility for different biosensing applications and a wide range of detectable concentration. Also, an oscillator-based architecture is proposed for digitization and integration. The counting time can be adjusted to enhance the resolution of the readout system. The proposed potentiometric sensing system was tested with 0.1-10 mM Potassium Ferricyanide (K3[Fe(CN)6]), and the results are interpreted in the micro-LCD on the board. The design offers the opportunity for a handheld medical device with fast and real-time monitoring of biomarkers and ion analytes.

原文English
主出版物標題2019 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2019
發行者Institute of Electrical and Electronics Engineers Inc.
頁面5761-5764
頁數4
ISBN(電子)9781538613115
DOIs
出版狀態Published - 7月 2019
事件41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2019 - Berlin, Germany
持續時間: 23 7月 201927 7月 2019

出版系列

名字Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
ISSN(列印)1557-170X

Conference

Conference41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2019
國家/地區Germany
城市Berlin
期間23/07/1927/07/19

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