Roll-to-roll fabrication of silver/silver chloride coated yarns for dry electrodes and applications in biosignal monitoring

Abstract This work presents a continuous roll-to-roll electrochemical coating system for producing silver/silver chloride (Ag/AgCl)-coated yarns, and their application in e-textile electrodes for biosignal monitoring. Ag/AgCl is one of the most preferred electrode materials as an interface between t...

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Main Authors: Katherine Le, Saeid Soltanian, Harishkumar Narayana, Amir Servati, Peyman Servati, Frank Ko
Format: Article
Language:English
Published: Nature Portfolio 2023-12-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-48245-8
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author Katherine Le
Saeid Soltanian
Harishkumar Narayana
Amir Servati
Peyman Servati
Frank Ko
author_facet Katherine Le
Saeid Soltanian
Harishkumar Narayana
Amir Servati
Peyman Servati
Frank Ko
author_sort Katherine Le
collection DOAJ
description Abstract This work presents a continuous roll-to-roll electrochemical coating system for producing silver/silver chloride (Ag/AgCl)-coated yarns, and their application in e-textile electrodes for biosignal monitoring. Ag/AgCl is one of the most preferred electrode materials as an interface between the conductive backbone of an electrode and skin. E-textile Ag/AgCl-coated multi-filament nylon yarns offer stable, flexible, and breathable alternatives to standard rigid or flexible film-based Ag/AgCl electrodes. The developed system allows for highly controlled process parameters to achieve stable and uniform AgCl film deposition on Ag-coated nylon yarns. The electrical, electrochemical properties, and morphology of the coated yarns were characterized. Dry electrodes were fabricated and could measure electrocardiogram (ECG) signals with comparable performance to standard gel electrodes. Ag/AgCl e-textile electrodes demonstrated high stability, with low average polarization potential (1.22 mV/min) compared with Ag-coated electrodes (3.79 mV/min), low impedance (below 2 MΩ, 0.1–150 Hz), and are excellent candidates for heart rate detection and monitoring.
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spelling doaj.art-6d10127ad8384afc92308bc5c950034c2023-12-03T12:22:53ZengNature PortfolioScientific Reports2045-23222023-12-0113111310.1038/s41598-023-48245-8Roll-to-roll fabrication of silver/silver chloride coated yarns for dry electrodes and applications in biosignal monitoringKatherine Le0Saeid Soltanian1Harishkumar Narayana2Amir Servati3Peyman Servati4Frank Ko5Materials Engineering Department, University of British ColumbiaElectrical and Computer Engineering Department, University of British ColumbiaElectrical and Computer Engineering Department, University of British ColumbiaElectrical and Computer Engineering Department, University of British ColumbiaElectrical and Computer Engineering Department, University of British ColumbiaMaterials Engineering Department, University of British ColumbiaAbstract This work presents a continuous roll-to-roll electrochemical coating system for producing silver/silver chloride (Ag/AgCl)-coated yarns, and their application in e-textile electrodes for biosignal monitoring. Ag/AgCl is one of the most preferred electrode materials as an interface between the conductive backbone of an electrode and skin. E-textile Ag/AgCl-coated multi-filament nylon yarns offer stable, flexible, and breathable alternatives to standard rigid or flexible film-based Ag/AgCl electrodes. The developed system allows for highly controlled process parameters to achieve stable and uniform AgCl film deposition on Ag-coated nylon yarns. The electrical, electrochemical properties, and morphology of the coated yarns were characterized. Dry electrodes were fabricated and could measure electrocardiogram (ECG) signals with comparable performance to standard gel electrodes. Ag/AgCl e-textile electrodes demonstrated high stability, with low average polarization potential (1.22 mV/min) compared with Ag-coated electrodes (3.79 mV/min), low impedance (below 2 MΩ, 0.1–150 Hz), and are excellent candidates for heart rate detection and monitoring.https://doi.org/10.1038/s41598-023-48245-8
spellingShingle Katherine Le
Saeid Soltanian
Harishkumar Narayana
Amir Servati
Peyman Servati
Frank Ko
Roll-to-roll fabrication of silver/silver chloride coated yarns for dry electrodes and applications in biosignal monitoring
Scientific Reports
title Roll-to-roll fabrication of silver/silver chloride coated yarns for dry electrodes and applications in biosignal monitoring
title_full Roll-to-roll fabrication of silver/silver chloride coated yarns for dry electrodes and applications in biosignal monitoring
title_fullStr Roll-to-roll fabrication of silver/silver chloride coated yarns for dry electrodes and applications in biosignal monitoring
title_full_unstemmed Roll-to-roll fabrication of silver/silver chloride coated yarns for dry electrodes and applications in biosignal monitoring
title_short Roll-to-roll fabrication of silver/silver chloride coated yarns for dry electrodes and applications in biosignal monitoring
title_sort roll to roll fabrication of silver silver chloride coated yarns for dry electrodes and applications in biosignal monitoring
url https://doi.org/10.1038/s41598-023-48245-8
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