title: Deformable and wearable carbon nanotube microwire-based sensors for ultrasensitive monitoring of strain, pressure and torsion.
abstract: Human joints have the ability to recover their mechanical functions after moderate dislocation. This remarkable capability inspired us to develop a "bone-skin-like" mechanosensor that can detect multiple mechanical deformations after recovery from electrical disconnection. To create this sensor, we embedded a low-strength, wet-spun single-walled carbon nanotube wire in polydimethylsiloxane. When various mechanical stimuli are applied, the wire gets fragmented and its resistance increases dramatically (from 360 Ω to practically infinity) in a reversible, recoverable manner even after the electrical failure/disconnection. The sensor is sensitive enough (a gauge factor of 105at 15% uniaxial strain, a pressure sensitivity of 105MPa-1at 0.9 MPa pressure and a torsion sensitivity of 860 at a twisting angle of 60°) to be used for accurate sensing of a variety of deformation modes, suggesting a wide range of applications in wearable and deformable mechanical sensors.
authors.affiliation: King Abdullah University of Science and Technology (KAUST), Physical Sciences and Engineering Division, COHMAS Laboratory, Thuwal 23955-6900, Saudi Arabia. jian.zhou@kaust.edu.sa gilles.lubineau@kaust.edu.sa.
authors.forename: Jian
authors.initials: J
authors.lastname: Zhou
authors.affiliation: King Abdullah University of Science and Technology (KAUST), Physical Sciences and Engineering Division, COHMAS Laboratory, Thuwal 23955-6900, Saudi Arabia. jian.zhou@kaust.edu.sa gilles.lubineau@kaust.edu.sa.
authors.forename: Xuezhu
authors.initials: X
authors.lastname: Xu
authors.affiliation: King Abdullah University of Science and Technology (KAUST), Physical Sciences and Engineering Division, COHMAS Laboratory, Thuwal 23955-6900, Saudi Arabia. jian.zhou@kaust.edu.sa gilles.lubineau@kaust.edu.sa and Shanghai Jiao Tong University, School of Mechanical Engineering, State Key Laboratory of Mechanical Systems and Vibration, 800 Dongchuan Road, Minhang District, Shanghai, 200240, P.R. China.
authors.forename: Hu
authors.initials: H
authors.lastname: Yu
authors.affiliation: King Abdullah University of Science and Technology (KAUST), Physical Sciences and Engineering Division, COHMAS Laboratory, Thuwal 23955-6900, Saudi Arabia. jian.zhou@kaust.edu.sa gilles.lubineau@kaust.edu.sa.
authors.forename: Gilles
authors.initials: G
authors.lastname: Lubineau