CNT/Graphite/SBS Conductive Fibers for Strain Sensing in Wearable Telerehabilitation Devices

Overview

Journal Sensors (Basel)

Publisher MDPI

Specialty Biotechnology

Date 2022 Feb 15

PMID 35161545

Authors

Piotr Walter

Bartlomiej Podsiadly

Marcin Zych

Michal Kaminski

Andrzej Skalski

Tomasz Raczynski

Daniel Janczak

Malgorzata Jakubowska

Affiliations

Soon will be listed here.

Abstract

Rapid growth of personal electronics with concurrent research into telerehabilitation solutions discovers opportunities to redefine the future of orthopedic rehabilitation. After joint injury or operation, convalescence includes free active range of movement exercises, such as joints bending and straightening under medical supervision. Flexion detection through wearable textile sensors provides numerous potential benefits such as: (1) reduced cost; (2) continuous monitoring; (3) remote telerehabilitation; (4) gamification; and (5) detection of risk-inducing activities in daily routine. To address this issue, novel piezoresistive multi-walled carbon nanotubes/graphite/styrene-butadiene-styrene copolymer (CNT/Gr/SBS) fiber was developed. The extrusion process allowed adjustable diameter fiber production, while being a scalable, industrially adapted method of manufacturing textile electronics. Composite fibers were highly stretchable, withstanding strains up to 285%, and exhibited exceptional piezoresistive parameters with a gauge factor of 91.64 for 0-100% strain range and 2955 for the full scope. Considering the composite's flexibility and sensitivity during a series of cyclic loading, it was concluded that developed Gr/CNT/SBS fibers were suitable for application in wearable piezoresistive sensors for telerehabilitation application.

Citing Articles

Construction of an Electrical Conductor, Strain Sensor, Electrical Connection and Cycle Switch Using Conductive Graphite Cotton Fabrics.

Alhashmi Alamer F, Aldeih A, Alsalmi O, Althagafy K, Al-Dossari M Polymers (Basel). 2022; 14(21).

PMID: 36365759 PMC: 9655536. DOI: 10.3390/polym14214767.

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