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Structure design of multi-functional flexible electrocardiogram electrodes based on PEDOT:PSS-coated fabrics
Journal of Industrial Textiles ( IF 3.2 ) Pub Date : 2021-06-23 , DOI: 10.1177/15280837211022637
Jia-Horng Lin, Xiangdong Fu, Ting-Ting Li, Xuefei Zhang, Bobo Zhao, Bing-Chiuan Shiu, Huiquan Wang, Qian Jiang, Ching-Wen Lou

Herein, Polyester woven fabrics as the matrices for the experimental group, while cotton knitted fabrics, cotton woven fabrics, and Polyethylene terephthalate (PET) mesh cloth used as the matrices for the control groups, at 40 °e, using 3,4-ethoxylene dioxy thiophene (EDOT)as the polymer monomer, FeCl3 as the oxidant, and poly(sodium-p-styrenesulfonate) (PSS) as the dopant, are separately coated with PEDOT:PSS polymer to prepare flexible conductive composite fabrics. The influences of the fabric pattern, oxidant concentration, and monomer concentration on the electrical performance of composite fabrics are optimized. The maximal electrical conductivity of PET-based composite fabrics (218 S/m) occurs when monomer concentration is 0.035 mol/L, the molar ratio of oxidant to monomer is 2.5, and the dopant concentration is 2.5 g/L. Moreover, bacteriostasis rate of this composite fabric reaches 71.8%. Furthermore, by electrocardiogram (ECG) simulated human body unit test as well as human body ECG test, the optimal PET-based composite fabric electrode both has a lower impedance which helps form the stabilized ECG signal. The resulting fabric electrodes retain the soft and breathable advantages from fabrics and reduce the discomfort for a long-term use of conventional electrographic gel, thereby validating the empirical evidence for mobile, portable, wearable ECG electrodes.



中文翻译:

基于PEDOT:PSS涂层织物的多功能柔性心电电极结构设计

其中,实验组以涤纶机织物为基体,对照组以棉针织物、棉机织物和聚对苯二甲酸乙二醇酯(PET)网布为基体,在40°e下,使用3,4-乙二甲苯二氧噻吩(EDOT)作为聚合物单体,FeCl 3作为氧化剂,聚对苯乙烯磺酸钠(PSS)作为掺杂剂,分别涂覆PEDOT:PSS聚合物制备柔性导电复合织物。优化了织物图案、氧化剂浓度和单体浓度对复合织物电性能的影响。当单体浓度为 0.035 mol/L、氧化剂与单体的摩尔比为 2.5、掺杂剂浓度为 2.5 g/L 时,PET 基复合织物的最大电导率为 218 S/m。而且这种复合面料的抑菌率达到了71.8%。此外,通过心电图(ECG)模拟人体单元测试以及人体ECG测试,最佳的PET基复合织物电极均具有较低的阻抗,有助于形成稳定的ECG信号。

更新日期:2021-06-24
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