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

Yan Wang; Ziyi Guo; Jie Xiong; Jingchong Liu; Yong Zhao; Fengyun Guo

doi:10.1007/s42765-022-00248-2

Advanced Fiber Materials ›› 2023, Vol. 5 ›› Issue (2) : 681 -693. DOI: 10.1007/s42765-022-00248-2

Research Article

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

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¹Key Laboratory of Intelligent Textile and Flexible Interconnection of Zhejiang Province, School of Textile Science and Engineering (International Silk Institute), Zhejiang Sci-Tech University, 310018, Hangzhou, China

²Key Laboratory of Bioinspired Intelligent Interface Science and Technology Ministry of Education School of Chemistry, Beihang University, 100191, Beijing, China

³Beijing Key Laboratory for Bioengineering and Sensing Technology, Daxing Research Institute, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, 100083, Beijing, China

^f guofy@zstu.edu.cn

Yan Wang

is postgraduate student in School of Textile Science and Engineering (International Silk Institute) at Zhejiang Sci-Tech University.

Ziyi Guo

is postgraduate student in School of Textile Science and Engineering (International Silk Institute) at Zhejiang Sci-Tech University.

Jie Xiong

is a professor and works in Zhejiang Sci-Tech University. His research focuses on fibrous energy materials.

Jingchong Liu

an associate professor, works in Beijing Key Laboratory for Bioengineering and Sensing Technology at University of Science and Technology Beijing. His research focuses on fibrous sensing materials.

Yong Zhao

a professor, works in Key Laboratory of Bioinspired Intelligent Interface Science and Technology Ministry of Education at Beihang University. His research focuses on multiscale functional fiber materials.

Fengyun Guo

an associate professor, works in Key Laboratory of Intelligent Textile and Flexible Interconnection of Zhejiang Province as well as School of Textile Science and Engineering (International Silk Institute) at Zhejiang Sci-Tech University. Her research focuses on bioinspired functional fiber materials.

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Abstract

Flexible wearable ultraviolet (UV) shielding, monitoring and warning devices have important applications in civil and military 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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Yan Wang, Ziyi Guo, Jie Xiong, Jingchong Liu, Yong Zhao, Fengyun Guo. Tree Ring-Inspired Fibrous Helix for UV Shielding and Warning Based on Photo-electricity-Acoustic Energy Conversion. Advanced Fiber Materials, 2023, 5(2): 681-693 DOI:10.1007/s42765-022-00248-2