Robust, self-adhesive and anti-bacterial silk-based LIG electrodes for electrophysiological monitoring.

Autor: Abd-Elbaki MKM; Zoology Department, Faculty of Science, Fayoum University 63514 Fayoum Egypt., Ragab TM; Department of Cardiology, Faculty of Medicine, Fayoum University 63514 Fayoum Egypt., Ismael NER; Zoology Department, Faculty of Science, Fayoum University 63514 Fayoum Egypt., Khalil ASG; Physics Department, Environmental and Smart Technology Group, Faculty of Science, Fayoum University 63514 Fayoum Egypt asg05@fayoum.edu.eg.; Institute of Basic and Applied Sciences, Faculty of Engineering, Egypt-Japan University of Science and Technology (E-JUST) 179 New Borg El-Arab City Egypt.
Jazyk: angličtina
Zdroj: RSC advances [RSC Adv] 2023 Oct 30; Vol. 13 (45), pp. 31704-31719. Date of Electronic Publication: 2023 Oct 30 (Print Publication: 2023).
DOI: 10.1039/d3ra05730e
Abstrakt: Flexible wearable electrodes have been extensively used for obtaining electrophysiological signals towards smart health monitoring and disease diagnosis. Here, low-cost, and non-conductive silk fabric (SF) have been processed into highly conductive laser induced graphene (LIG) electrodes while maintaining the original structure of SF. A CO 2 -pulsed laser was utilized to produce LIG-SF with controlled sheet resistance and mechanical properties. Laser processing of SFs under optimized conditions yielded LIG-SF electrodes with a high degree of homogeneity on both, top and bottom layers. Silk fibroin/Ca 2+ adhesive layers effectively promoted the adhesive, anti-bacterial properties and provided a conformal contact of LIG-SF electrodes with human skin. Compared with conventional Ag/AgCl electrodes, LIG-SF electrodes possesses a much lower contact impedance in contact with human skin enabling highly stable electrophysiological signals recording. The applicability of adhesive LIG-SF electrodes to acquire electrocardiogram (ECG) signals was investigated. ECG signals recordings of adhesive LIG-SF electrodes showed excellent performance compared to conventional Ag/AgCl electrodes at intense body movements while running at different speeds for up to 9 km over a duration of 24 h. Therefore, our proposed adhesive LIG-SF electrodes can be applied for long-term personalized healthcare monitoring and sports management applications.
Competing Interests: There are no conflicts to declare.
(This journal is © The Royal Society of Chemistry.)
Databáze: MEDLINE
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