Superelastic Radiative Cooling Metafabric for Comfortable Epidermal Electrophysiological Monitoring

作     者：Jiancheng Dong Yidong Peng Yiting Zhang Yujia Chai Jiayan Long Yuxi Zhang Yan Zhao Yunpeng Huang Tianxi Liu Jiancheng Dong;Yidong Peng;Yiting Zhang;Yujia Chai;Jiayan Long;Yuxi Zhang;Yan Zhao;Yunpeng Huang;Tianxi Liu

作者机构：Key Laboratory of Synthetic and Biological ColloidsMinistry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxi 214122People’s Republic of China College of Energy Material and ChemistryCollege of Chemistry and Chemical EngineeringInner Mongolia UniversityHohhot 010021People’s Republic of China 

出 版 物：《Nano-Micro Letters》 (纳微快报（英文版）)

年 卷 期：2023年第15卷第10期

页      面：449-462页

核心收录：

学科分类：0821[工学-纺织科学与工程] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 0817[工学-化学工程与技术] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 082102[工学-纺织材料与纺织品设计] 0702[理学-物理学] 

基　　金：financially supported by the National Natural Science Foundation of China (21875033, 52161135302) the Research Foundation Flanders (G0F2322N) the China Postdoctoral Science Foundation (2022M711355) the Natural Science Foundation of Jiangsu Province (BK20221540) the Shanghai Scientific and Technological Innovation Project (18JC1410600) the Program of the Shanghai Academic Research Leader (17XD1400100) the Postgraduate Research & Practice Innovation Program of Jiangsu Province (KYCX22_2317) 

主　　题：Passive radiative cooling Human electrophysiological monitoring Superelastic metafabrics Spectrally selective reflecting microfibers Liquid metals 

摘      要：Epidermal electronics with superb passive-cooling capabilities are of great value for both daytime outdoor dressing comfort and low-carbon economy. Herein, a multifunctional and skinattachable electronic is rationally developed on a porous all-elastomer metafabric for efficient passive daytime radiative cooling(PDRC) and human electrophysiological monitoring. The cooling characteristics are realized through the homogeneous impregnation of polytetrafluoroethylene microparticles in the styrene–ethylene–butylene–styrene fibers, and the rational regulation of microporosity in SEBS/PTFE metafabrics, thus synergistically backscatter ultraviolet–visible–near-infrared light(maximum reflectance over 98.0%) to minimize heat absorption while efficiently emit human-body midinfrared radiation to the sky. As a result, the developed PDRC metafabric achieves approximately 17℃ cooling effects in an outdoor daytime environment and completely retains its passive cooling performance even under 50% stretching. Further, high-fidelity electrophysiological monitoring capability is also implemented in the breathable and skin-conformal metafabric through liquid metal printing, enabling the accurate acquisition of human electrocardiograph, surface electromyogram, and electroencephalograph signals for comfortable and lengthy health regulation. Hence, the fabricated superelastic PDRC metafabric opens a new avenue for the development of body-comfortable electronics and low-carbon wearing technologies.