Textile Organic Electrochemical Transistors as a Platform for Wearable Biosensors

被引：151

作者：

Gualandi, I. ^{[1
]}

Marzocchi, M. ^{[1
]}

Achilli, A. ^{[2
]}

Cavedale, D. ^{[1
]}

Bonfiglio, A. ^{[2
]}

Fraboni, B. ^{[1
]}

机构：

[1] Univ Bologna, Dipartimento Fis & Astron, Viale Berti Pichat 6-2, I-40127 Bologna, Italy

[2] Univ Cagliari, Dipartimento Ingn Elettr & Elettron, I-09123 Cagliari, Italy

来源：

SCIENTIFIC REPORTS | 2016年 / 6卷

关键词：

SENSORS;

D O I：

10.1038/srep33637

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The development of wearable chemical sensors is receiving a great deal of attention in view of non-invasive and continuous monitoring of physiological parameters in healthcare applications. This paper describes the development of a fully textile, wearable chemical sensor based on an organic electrochemical transistor (OECT) entirely made of conductive polymer (PEDOT:PSS). The active polymer patterns are deposited into the fabric by screen printing processes, thus allowing the device to actually "disappear" into it. We demonstrate the reliability of the proposed textile OECTs as a platform for developing chemical sensors capable to detect in real-time various redox active molecules (adrenaline, dopamine and ascorbic acid), by assessing their performance in two different experimental contexts: i) ideal operation conditions (i.e. totally dipped in an electrolyte solution); ii) real-life operation conditions (i.e. by sequentially adding few drops of electrolyte solution onto only one side of the textile sensor). The OECTs response has also been measured in artificial sweat, assessing how these sensors can be reliably used for the detection of biomarkers in body fluids. Finally, the very low operating potentials (<1 V) and absorbed power (similar to 10(-4) W) make the here described textile OECTs very appealing for portable and wearable applications.

引用

页数：10