Wearable carbon nanotube based dry-electrodes for electrophysiological sensors. (28th March 2018)

• Record Type: Journal Article
• Authors: Kang, Byeong-Cheol; Ha, Tae-Jun
• Is Part Of: Japanese journal of applied physics. Volume 57:Number 5(2018)Supplement
• Publication Date: 2018-03-28
• Subjects: Physics -- Periodicals; 621.05
• DOI: 10.7567/JJAP.57.05GD02
• Languages: English
• ISSNs: 0021-4922

Abstract

Abstract: In this paper, we demonstrate all-solution-processed carbon nanotube (CNT) dry-electrodes for the detection of electrophysiological signals such as electrocardiograms (ECG) and electromyograms (EMG). The key parameters of P, Q, R, S, and T peaks are successfully extracted by such CNT based dry-electrodes, which is comparable with conventional silver/chloride (Ag/AgCl) wet-electrodes with a conducting gel film for the ECG recording. Furthermore, the sensing performance of CNT based dry-electrodes is secured during the bending test of 200 cycles, which is essential for wearable electrophysiological sensors in a non-invasive method on human skin. We also investigate the application of wearable CNT based dry-electrodes directly attached to the human skins such as forearm for sensing the electrophysiological signals. The accurate and rapid sensing response can be achieved by CNT based dry-electrodes to supervise the health condition affected by excessive physical movements during the real-time measurements.