A facile structural strategy for a wearable strain sensor based on carbon nanotube modified helical yarns.

ABSTRACT: Wearable sensors have gained considerable popularity due to the potential feasibility in flexible electronics. In this work, a facile fabrication strategy for a wearable strain sensor is presented based on a hierarchical-gap response mechanism. A double-helical-structured elastic string was employed as the stretchable substrate, and carbon nanotubes were chosen as the resistance-sensitive nanostructures. A CNT-modified elastic string (CES) was obtained by directly coating CNTs onto the substrate. After polydimethylsiloxane encapsulation, a fiber-shaped resistive-type strain sensor was fabricated. It was attached to different joints for human body motion monitoring. The double-helical structure could produce hierarchical gaps as the applied strain increased, which served as spatial compleme

SUBMITTER: Zhao W 

PROVIDER: S-EPMC9417151 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature