You are here

Ultrathin and Wearable Microtubular Epidermal Sensor for Real-Time Physiological Pulse Monitoring

TitleUltrathin and Wearable Microtubular Epidermal Sensor for Real-Time Physiological Pulse Monitoring
Publication TypeJournal Article
Year of Publication2017
AuthorsXi, Wang, Yeo Joo Chuan, Yu Longteng, Zhang Shuai, and Lim Chwee Teck
JournalAdv. Mater. Technol.
Volume2
Pagination1700016
Date Published05/2017
ISSN2365-709X
Keywordscomposite, electronic skin, epidermal electronics, flexible microtubes, force measurement, high-resolution, liquid metal, nanowires, pulse monitoring, sensitivity, stretchable electronics, tactile sensor, tactile sensors, transistors, transparent
Abstract

A flexible, stretchable, soft, and ultrathin wearable microtubular sensor that is highly sensitive to mechanical perturbations is developed. The sensor comprises a unique architecture consisting of a liquid-state conductive element core within a soft silicone elastomer microtube. The microtubular sensor can distinguish forces as small as 5 mN and possesses a high force sensitivity of 68 N-1. The microtubular sensor occupies a tiny footprint of 120 mu m in diameter, approximately the cross-section of a strand of hair. Superior sensing capabilities of the sensor are reported to detect perturbations from pulsatile air flows and demonstrate its applicability in continuous and imperceptible real-time monitoring of arterial pulse waves.

DOI10.1002/admt.201700016

Theme inspired by Danetsoft