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Open AccessArticle

Single-Wall Carbon Nanotube-Coated Cotton Yarn for Electrocardiography Transmission

by Yuliang Zhao 1,2,†, Yuying Cao 3,4,†, Junshan Liu 3, Zhikun Zhan 3,*, Xiaoli Li 5 and Wen Jung Li 2,*
1
School of Control Engineering, Northeastern University at Qinhuangdao, Qinhuangdao 066004, China
2
Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong 999077, China
3
Key Lab of Industrial Computer Control Engineering of Hebei Province, School of Electrical Engineering, Yanshan University, Qinhuangdao 066004, China
4
Institute for Frontier Materials, Deakin University, Waurn Ponds, VIC 3216, Australia
5
National Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing 100875, China
*
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Micromachines 2018, 9(3), 132; https://doi.org/10.3390/mi9030132
Received: 21 July 2017 / Revised: 1 March 2018 / Accepted: 14 March 2018 / Published: 19 March 2018
(This article belongs to the Special Issue Carbon Based Materials for MEMS/NEMS)
We fabricated a type of conductive fabric, specifically single-wall carbon nanotube-coated cotton yarns (SWNT-CYs), for electrocardiography (ECG) signal transmission utilizing a “dipping and drying” method. The conductive cotton yarns were prepared by dipping cotton yarns in SWNTs (single-wall carbon nanotubes) solutions and then drying them at room temperature—a simple process that shows consistency in successfully coating cotton yarns with conductive carbon nanotubes (CNTs). The influence of fabrication conditions on the conductivity properties of SWNT-CYs was investigated. The results demonstrate that our conductive yarns can transmit weak bio-electrical (i.e., ECG) signals without significant attenuation and distortion. Our conductive cotton yarns, which combine the flexibility of conventional fabrics and the good conductivity of SWNTs, are promising materials for wearable electronics and sensor applications in the future. View Full-Text
Keywords: single-wall carbon nanotubes (SWNTs); conductive cotton yarns; flexible wires; wearable electronics; electrocardiography transmission single-wall carbon nanotubes (SWNTs); conductive cotton yarns; flexible wires; wearable electronics; electrocardiography transmission
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Zhao, Y.; Cao, Y.; Liu, J.; Zhan, Z.; Li, X.; Li, W.J. Single-Wall Carbon Nanotube-Coated Cotton Yarn for Electrocardiography Transmission. Micromachines 2018, 9, 132.

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