Biocompatible Gel-Free Coconut Oil and Carbon Black Electrodes for ECG and Respiration Measurements

被引:6
作者
Garcia-Garcia, Leonardo A. [1 ]
Johnson, Alexander [1 ]
Kreitmair, Paul Merlin [2 ]
Lugoda, Pasindu [3 ]
Pouryazdan, Arash [1 ]
Roggen, Daniel [1 ]
Munzenrieder, Niko [1 ,4 ]
机构
[1] Univ Sussex, Sensor Technol Res Ctr, Brighton BN2 4LY, E Sussex, England
[2] Tech Univ Dresden, Inst Berufspadag & Berufliche Didakt, D-01217 Dresden, Germany
[3] Nottingham Trent Univ, Dept Engn, Nottingham NG1 4FQ, England
[4] Free Univ Bozen Bolzano, Fac Engn, I-39100 Bolzano, Italy
基金
英国工程与自然科学研究理事会;
关键词
Biocompatible electrodes; dry electrodes; ECG electrodes; flexible electronics; health monitoring; WEARABLE SENSOR;
D O I
10.1109/JSEN.2023.3249159
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The current state of the art in telemedicine has increased the interest in long-term monitoring of physiological and bioelectric signals. This motivated the development of materials and techniques for the fabrication of biocompatible, user, and environmentally friendly alternatives to conventional resistive wet electrodes. Here, we report a method for the fabrication of dry flexible and stretchable electrodes based on coconut oil (CNO) and carbon black (CB) for the monitoring of electrophysiological signals without conductive gels. The highly stretchable material shows a specific resistance rho down to 33.2 +/- 12.3 ohm m, high conformability, and a stretchability up to 1500%. The epidermal electrodes were used to record electrocardiographic (ECG) signals and measure respiration in a three-lead configuration and compared with commercial wet electrodes. Even after being elongated by 100% for 100 stretch/release cycles, a reliable recording of the QRS complex is demonstrated without the need for any contact enhancer or substances that cause skin reaction, demonstrating the potential use of this material for long-term ECG monitoring applications.
引用
收藏
页码:23980 / 23987
页数:8
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