A three-dimensionally architected electronic skin mimicking human mechanosensation

• 成果类型: Article
• 署名作者: Liu, Zhi; Hu, Xiaonan; Bo, Renheng; Yang, Youzhou; Cheng, Xu; Pang, Wenbo; Liu, Qing; Wang, Yuejiao; Wang, Shuheng; Xu, Shiwei; Shen, Zhangming; Zhang, Yihui
• 署名单位: Tsinghua University; Tsinghua University; National University of Singapore; National University of Singapore
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-12035
• DOI: 10.1126/science.adk5556
• 发表日期: 2024-05-31
• 页码: 987-994
• 关键词: resolution; sensor; soft; manipulation; receptors; thickness

摘要

Human skin sensing of mechanical stimuli originates from transduction of mechanoreceptors that converts external forces into electrical signals. Although imitating the spatial distribution of those mechanoreceptors can enable developments of electronic skins capable of decoupled sensing of normal/shear forces and strains, it remains elusive. We report a three-dimensionally (3D) architected electronic skin (denoted as 3DAE-Skin) with force and strain sensing components arranged in a 3D layout that mimics that of Merkel cells and Ruffini endings in human skin. This 3DAE-Skin shows excellent decoupled sensing performances of normal force, shear force, and strain and enables development of a tactile system for simultaneous modulus/curvature measurements of an object through touch. Demonstrations include rapid modulus measurements of fruits, bread, and cake with various shapes and degrees of freshness.