Peptidoglycan-inspired autonomous ultrafast self-healing bio-friendly elastomers for bio-integrated electronics

• 作者: Luzhi Zhang Jiahui Liang Chenyu Jiang Zenghe Liu Lijie Sun Shuo Chen Huixia Xuan Dong Lei Qingbao Guan Xiaofeng Ye Zhengwei You
• 来源期刊: 国家科学评论（英文版）
• 年，卷（期）: 2021,（5）
• 所属期刊栏目: RESEARCH ARTICLES
• 页码范围: 125-134
• 页数: 10页
• 语种: 英文
• DOI: 10.1093/nsr/nwaa154

摘要

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 serf-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 ofelastomers for applications in bio-integrated electronics.