Dynamic and mechanically robust and ultrafast healable ionogel for nerve fiber-inspired signal transmitter. Issue 48 (25th November 2022)

• Record Type: Journal Article
• Authors: Liu, Ping; Pei, Danfeng; Wu, Yongpeng; Li, Mingjie; Zhao, Xihui; Li, Chaoxu
• Is Part Of: Journal of materials chemistry. Volume 10:Issue 48(2022)
• Page Start: 25602
• Page End: 25610
• Publication Date: 2022-11-25
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/d2ta06884b
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : A dynamic, robust, ultrafast healable and 3D shaped PUSeIL was synthesized and used as a self-weldable and recyclable conductor. When serving as the artificial nerve fiber, it could offer a communication unit for message and energy delivery. Abstract : Mechanical robustness in combination with ultrafast healability has been pursued for soft conductors in applications of flexible electronics. Inspired by the unique dense H-bond arrays in spider silk and the rapid diselenide metathesis under visible light irradiation, herein, a dynamic, robust, and ultrafast healable supramolecular poly(urethane-urea) ionogel (PUSeIL) was designed. The resultant PUSeIL exhibited a tensile strength of 22 MPa, a toughness of 109.8 MJ m −3, and an ultrafast self-healability in 30 s. Besides self-welding and recyclability, its tunable stress relaxation derived from the excellent spatial controllability of diselenide metathesis under light irradiation further provided a possibility for patterns with variable structural colors and flat-to-3D shape-morphing. When serving as the nerve fiber-inspired signal transmitter by mimicking the structure and functions of the myelinated axon, its faithful and high throughput information interaction, ultrafast self-healability, and long-term working stability enabled PUSeIL as a communication unit for message and energy delivery. Thus, this study not only provides a new platform for designing dynamic, mechanically robust, and ultrafast self-healing ionic conductivity but also promises the facileness of building damage-endurable soft electronics and applying them to human–machine interfaces.