Semi-liquid metal-based highly permeable and adhesive electronic skin inspired by spider web  

蛛网启发的高透气、高黏附半液态金属电子皮肤

作　　者：Rui Guo Xiaoqing Li Yingtong Zhou Yuqi Zhang Chengjie Jiang Yang Yu Qingting Tan Wenbo Ding Hongzhang Wang 国瑞;李小庆;周颖彤;张字琦;蒋成杰;于洋;谭庆亭;丁文伯;汪鸿章

机构地区：[1]School of Precision Instrument and Opto-Electronics Engineering,The State Key Laboratory of Precision Measuring Technology and Instruments,Tianjin University,Tianjin 300072,China [2]Institute of Materials Research&Center of Double Helix,Shenzhen International Graduate School,Tsinghua University,Shenzhen 518055,China [3]DREAM Ink Technologies Co.Ltd.,Beijing 100083,China [4]Department of Ultrasound,Beijing Tsinghua Changgung Hospital,School of Clinical Medicine,Tsinghua University,Beijing 102218,China

出　　处：《Science Bulletin》2024年第17期2723-2734,共12页科学通报（英文版）

基　　金：National Natural Science Foundation of China (52301193 and 62304150)。

摘　　要：Soft and stretchable electronics have garnered significant attention in various fields, such as wearable electronics, electronic skins, and soft robotics. However, current wearable electronics made from materials like conductive elastomers, hydrogels, and liquid metals face limitations, including low permeability, poor adhesion, inadequate conductivity, and limited stretchability. These issues hinder their effectiveness in long-term healthcare monitoring and exercise monitoring. To address these challenges,we introduce a novel design of web-droplet-like electronics featuring a semi-liquid metal coating for wearable applications. This innovative design offers high permeability, excellent stretchability, strong adhesion, and good conductivity for the electronic skin. The unique structure, inspired by the architecture of a spider web, significantly enhances air permeability compared to commercial breathable patches.Furthermore, the distribution of polyborosiloxane mimics the adhesive properties of spider web mucus,while the use of semi-liquid metals in this design results in remarkable conductivity(9 × 10^(6)S/m) and tensile performance(up to 850% strain). This advanced electronic skin technology enables long-term monitoring of various physiological parameters and supports machine learning recognition functions with unparalleled advantages. This web-droplet structure design strategy holds great promise for commercial applications in medical health monitoring and disease diagnosis.

关 键 词：Wearable electronics Web-droplet structure Semi-liquid metal High permeability Strong adhesion Long-term monitoring 

分 类 号：TG139.8[一般工业技术—材料科学与工程] TP18[金属学及工艺—合金]