Electrochemical Modiﬁcation of Silver Coated Multiﬁlament for Wearable ECG Monitoring Electrodes

Peng Jun Xu; Hao Liu; Hui Zhang; Xiao Ming Tao; Shan Yuan Wang

doi:10.4028/www.scientific.net/AMR.332-334.1019

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 332-334Electrochemical Modiﬁcation of Silver Coated...

Electrochemical Modiﬁcation of Silver Coated Multiﬁlament for Wearable ECG Monitoring Electrodes

Abstract:

This paper presents a method to fabricate textile structural electrodes from material preparation to electrode structure design and testing. Silver/Silver Chloride (Ag/AgCl) was assumed to be the best electrode material system for acquisition of biopotential signals. A AgCl coating has been grown on silver (Ag) coated multilament yarn to form Ag/AgCl combination using constant voltage electrolytic deposition in 0.9% wt sodium chloride bath. The AgCl thickness could be controlled by varying processing time (t) and voltage (V). Surface morphology of the treated ﬁbres were studied by scanning electron microscopy (SEM) which revealed that AgCl grain size became bigger and denser as increased processing time and voltage. The impedance of the treated ﬁbre was analyzed by electrochemical impedance spectroscopy (EIS) analysis from 0.1H z to 1000H z which shown that impedance also increased with processing time and voltage. The prepared Ag/AgCl multilament yarn was fabricated into wearable electrode using embroidery technique. ECG testing conﬁrmed that the electrodes made from treated ﬁbre can acquire high quality signal.

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Periodical:

Advanced Materials Research (Volumes 332-334)

Pages:

1019-1023

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.332-334.1019

Citation:

Cite this paper

Online since:

September 2011

Authors:

Peng Jun Xu, Hao Liu, Hui Zhang, Xiao Ming Tao, Shan Yuan Wang

Keywords:

Electrocardiogram (ECG), Electrolytic Deposition, Impedance Spec-Troscopy, Silver Chloride, Textile Electrode

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