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Tree Ring‑Inspired Fibrous Helix for UV Shielding and Warning Based on Photo‑electricity‑Acoustic Energy Conversion

作     者:Yan Wang Ziyi Guo Jie Xiong Jingchong Liu Yong Zhao Fengyun Guo 

作者机构:Key Laboratory of Intelligent Textile and Flexible Interconnection of Zhejiang ProvinceSchool of Textile Science and Engineering(International Silk Institute)Zhejiang Sci-Tech UniversityHangzhou 310018China Key Laboratory of Bioinspired Intelligent Interface Science and Technology Ministry of Education School of ChemistryBeihang UniversityBeijing 100191China Beijing Key Laboratory for Bioengineering and Sensing TechnologyDaxing Research InstituteSchool of Chemistry and Biological EngineeringUniversity of Science and Technology BeijingBeijing 100083China 

出 版 物:《Advanced Fiber Materials》 (先进纤维材料(英文))

年 卷 期:2023年第5卷第2期

页      面:681-693页

核心收录:

学科分类:0710[理学-生物学] 1101[军事学-军事思想及军事历史] 0809[工学-电子科学与技术(可授工学、理学学位)] 08[工学] 0805[工学-材料科学与工程(可授工学、理学学位)] 0836[工学-生物工程] 

基  金:supported by the National Natural Science Foundation of China(nos.51803183 and 22005012) the Fundamental Research Funds of Zhejiang Sci-Tech University(2021Q007). 

主  题:Electrospinning Nanofibrous helix Energy conversion UV shielding and warning Multifunction Flexible electronics 

摘      要:Flexible wearable ultraviolet(UV)shielding,monitoring and warning devices have important applications in civil and mili-tary fields.However,most flexible wearable UV devices show unsatisfactory performance due to their poor stability and easy failure at large strains.Herein,inspired by tree rings,we engineered a hierarchical composite nanofibrous helix with an alternately stacked Archimedes spiral structure via a cost-effective strategy.Based on a photo-electricity-acoustic energy conversion system,we fabricated an all-in-one device exhibiting strain-insensitive UV protection at 0–500%strain for UV shielding as well as strain-sensitive UV monitoring at 500–1500%strain for UV early warning.Compared with previously reported common nanofibrous membrane devices,the as-prepared composite nanofibrous helix shows great advantages in terms of stability and UV protection,especially at large strains.Furthermore,the helix demonstrates multiple functions of wear resistance,antibacterial properties,biodegradation and knittability.This versatile strategy holds great promise for wearable electronics and multifunctional devices.

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