Electrospun Rubber Nanofiber Web-Based Dry Electrodes for Biopotential Monitoring

This study aims to find base materials for dry electrode fabrication with high accuracy and without reducing electrode performance for long-term bioelectric potential monitoring after electroless silver plating. Most applications of dry electrodes that have been developed in the past few decades are...

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Published inSensors (Basel, Switzerland) Vol. 23; no. 17; p. 7377
Main Authors Reza, Mohammad Shamim, Jin, Lu, Jeong, You Jeong, Oh, Tong In, Kim, Hongdoo, Kim, Kap Jin
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 24.08.2023
MDPI
Subjects
biopotential monitoring
Butadiene
Comparative analysis
dry electrode
Electric properties
Electrocardiogram
Electrocardiography
Electrodes
Electromyography
electrospinning
Human subjects
nanofiber web
Nanoparticles
Physiology
Plating
Polymers
Polyvinylidene fluoride
Rubber
Silver
silver plating
Skin
South Korea
United States > US
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Summary:This study aims to find base materials for dry electrode fabrication with high accuracy and without reducing electrode performance for long-term bioelectric potential monitoring after electroless silver plating. Most applications of dry electrodes that have been developed in the past few decades are restricted by low accuracy compared to commercial Ag/AgCl gel electrodes, as in our previous study of PVDF-based dry electrodes. In a recent study, however, nanoweb-based chlorinated polyisoprene (CPI) and poly(styrene-b-butadiene-b-styrene) (SBS) rubber were selected as promising candidates due to their excellent elastic properties, as well as their nanofibril nature, which may improve electrode durability and skin contact. The electroless silver plating technique was employed to coat the nanofiber web with silver, and silver nanoweb(AgNW)-based dry electrodes were fabricated. The key electrode properties (contact impedance, step response, and noise characteristics) for AgNW dry electrodes were investigated thoroughly using agar phantoms. The dry electrodes were subsequently tested on human subjects to establish their realistic performance in terms of ECG, EMG monitoring, and electrical impedance tomography (EIT) measurements. The experimental results demonstrated that the AgNW dry electrodes, particularly the SBS-AgNW dry electrodes, performed similarly to commercial Ag/AgCl gel electrodes and were outperformed in terms of long-term stability.
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Current address: Yiwu Research Institute of Fudan University, Yiwu 322000, China.
ISSN:1424-8220
1424-8220
DOI:10.3390/s23177377