Investigation of graphene-coated Ag/AgCl electrode performance in surface electromyography measurement
Yükleniyor...
Tarih
2022
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Conventional silver-silver chloride (Ag/AgCl) electrodes are widely used for recording surface electromyography (sEMG) with a conductive gel. However, for long-term sEMG recording, the gel has some disadvantages that cause high impedance. Therefore, the dry electrodes have been alternatively purposed to overcome these disadvantages. Recently, the nanomaterial-based dry electrodes have been developed for long term electrophysiological signal recording. In the present study, we aimed to develop a graphene-coated Ag/AgCl electrode for long-term recording. We transferred single layer graphene (SLG) on the Ag/AgCl electrode surface by using chemical vapor deposition and confirmed this process by Raman scattering spectroscopy and scanning electron microscopy. We then compared the graphene-coated Ag/AgCl and conventional Ag/AgCl electrodes by evaluating median motor nerve conduction studies (mNCS) and their impedance. The charge transfer resistance (Rct) for the Ag/AgCl electrode (4170 Ω) was much higher than graphene-coated Ag/AgCl electrode (Rct = 24.6 Ω). For median mNCS measurements without gel, the graphene-coated Ag/AgCl electrode provided a better amplitude of distal and proximal compound muscle action potential (28.3 mV and 25.8 mV, respectively) than the Ag/AgCl electrode (21.8 mV and 20.9 mV, respectively). Consequently, the present study suggests promising results in terms of the usability of graphene-coated Ag/AgCl electrodes for long-term monitoring and wearable systems applications of sEMG. In future studies, we aim to investigate clinical applicability of graphene-coated sEMG electrodes that include extended clinical settings and larger study population.
Açıklama
Anahtar Kelimeler
Surface electromyography, Graphene, Nanomaterial, Sensor, Electrode, Nerve conduction studies, Biopotential, graphene, nanomaterial, Ag/AgCl electrodes, Biopotentials, Conductive gels, Dry electrode, Electrode performance, High impedance, Motor-nerve conduction, Nerve conduction study, Silver-silver chloride, Surface electromyography, Article, chemical vapor deposition, electrophysiology, human, impedance analysis, motor nerve conduction, muscle action potential, nerve conduction, Raman spectrometry, scanning electron microscopy, surface electromyography, Graphene
Kaynak
Biosensors and Bioelectronics: X
WoS Q Değeri
Q2
Scopus Q Değeri
Cilt
11
Sayı
Künye
Alcan V., Harputlu E., Ünlü C.G., Ocakoğlu K., Zinnuroğlu M. (2022). Investigation of graphene-coated Ag/AgCl electrode performance in surface electromyography measurement. Biosensors and Bioelectronics: X. 11. 1-7.
