Fabric Electrode Monitoring of Dynamic and Static ECG Signal and Comfort Performance

Author:

Zhou Jinli123,Zhang Yazhou1ORCID,Yang Hongying1ORCID,Liu Qingxia1,Wang Ming45,Xiong Fan1ORCID,Chen Dongyi1,Du Lixin3

Affiliation:

1. College of Textile, Zhongyuan University of Technology, Zhengzhou 450007, China

2. College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215021, China

3. Luthai Textile Co., Ltd., Zibo 255100, China

4. Key Laboratory of Science & Technology of Eco-Textile, Donghua University, Shanghai 201620, China

5. College of Chemical and Dyeing-Printing Engineering, Henan University of Engineering, Zhengzhou 450007, China

Abstract

To monitor dynamic ECG for a long time, fabric electrodes must have excellent comfort and electrical properties. In addition, the quality of the collected ECG should be as free as possible from interference by motion artifacts due to dry skin and body movement. This study explores the comfort of four different materials and structures of silver-plated fabric electrodes, analyzing the acquisition effect of ECG signals under dynamic and static conditions. To obtain fabric electrodes with good comfort levels and stable ECG signal monitoring under dynamic and static conditions, four kinds of electroless silver-plated conductive fabrics were selected and assembled into fabric electrodes. Permeability, electrochemical impedance spectrum, static opening voltage, and dynamic static electrocardiogram were tested and evaluated for each of the four fabric electrodes; additionally, the comfort of the four fabric electrodes and the mass of ECG monitored under dynamic and static conditions were assessed. The results showed that the highly hygroscopic knitted fabric electrode showed better comfort than the other three samples. The electrochemical impedance spectrum curve of the highly hygroscopic knitted fabric electrode was relatively smooth and stable, and it had lower impedance than the other electrodes; moreover, the static open-circuit voltage changed more stably with the increase of processing time compared to the other samples. The four kinds of fabric electrodes all collected clear and stable ECG in the resting state. However, in dynamic conditions, only the highly hygroscopic knitted fabric electrodes collected stable ECG under the conditions of seven daily life actions, clearly distinguishing between the P-wave, QRS wave group, and T-wave. The knitted fabric electrode has a high correlation with the ECG measured by a disposable gel electrode, meeting the standards needed to monitor ECG during the human body’s daily activities.

Funder

National Key R&D Program of China

Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, Donghua University

Scientific and Technological Project in Henan Province

Science and Technology Guidance Project of China National Textile and Apparel Council

Zhongyuan University of Technology Subject Development Program for Young Master’s Supervisor

Zhongyuan University of Technology Advantageous Subjects Strength Improvement Plan

Advanced Textile Equipment Technology Provincial and Ministerial Co-construction Collaborative Innovation Center

Key Laboratory of Functional Textiles of Henan Province

Publisher

MDPI AG

Subject

Materials Chemistry,Surfaces, Coatings and Films,Surfaces and Interfaces

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