Peptidoglycan-inspired autonomous ultrafast self-healing bio-friendly elastomers for bio-integrated electronics. Issue 5 (6th July 2020)

• Record Type: Journal Article
• Authors: Zhang, Luzhi; Liang, Jiahui; Jiang, Chenyu; Liu, Zenghe; Sun, Lijie; Chen, Shuo; Xuan, Huixia; Lei, Dong; Guan, Qingbao; Ye, Xiaofeng; You, Zhengwei
• Is Part Of: National science review. Volume 8:Issue 5(2021)
• Publication Date: 2020-07-06
• Subjects: biomimetic -- elastomers -- ultrafast self-healing -- bio-integrated electronics -- stretchable conductor; Science -- Periodicals; 505
• DOI: 10.1093/nsr/nwaa154
• Languages: English
• ISSNs: 2095-5138

Abstract

Abstract: Elastomers are essential for stretchable electronics, which have become more and more important in bio-integrated devices. To ensure high compliance with the application environment, elastomers are expected to resist, and even self-repair, mechanical damage, while being friendly to the human body. Herein, inspired by peptidoglycan, we designed the first room-temperature autonomous self-healing biodegradable and biocompatible elastomers, poly(sebacoyl 1, 6-hexamethylenedicarbamate diglyceride) (PSeHCD) elastomers. The unique structure including alternating ester-urethane moieties and bionic hybrid crosslinking endowed PSeHCD elastomers superior properties including ultrafast self-healing, tunable biomimetic mechanical properties, facile reprocessability, as well as good biocompatibility and biodegradability. The potential of the PSeHCD elastomers was demonstrated as a super-fast self-healing stretchable conductor (21 s) and motion sensor (2 min). This work provides a new design and synthetic principle of elastomers for applications in bio-integrated electronics. Abstract : Superfast autonomous self-healing biocompatible and biodegradable elastomers were developed based on unique alternating ester-urethane moieties and bionic hybrid crosslinking networks, showing great potential for stretchable electronics.