Many natural fibers are lightweight and display remarkable strength and toughness. These properties originate from the fibers' hierarchical structures, assembled from the molecular to macroscopic scale. The natural spinning systems that produce such fibers are highly energy efficient, inspiring researchers to mimic these processes to realize robust artificial spinning. Significant developments have been achieved in recent years toward the preparation of high-performance bio-based fibers. Beyond excellent mechanical properties, bio-based fibers can be functionalized with a series of new features, thus expand-ing their sophisticated applications in smart textiles, electronic sensors, and biomedical engineering. Here, recent progress in the construction of bio-based fibers is outlined. Various bioinspired spinning methods, strengthening strategies for mechanically strong fibers, and the diverse applications of these fibers are discussed. Moreover, challenges in reproducing the mechanical performance of natural systems and understanding their dynamic spinning process are presented. Finally, a perspective on the develop-ment of biological fibers is given.

Zongpu Xu;Mingrui Wu;Qi Ye;Dong Chen;Kai Liu;Hao Bai

State Key Laboratory of Chemical Engineering,College of Chemical and Biological Engineering,Zhejiang University,Hangzhou 310027,China;Institute of Applied Bioresources,College of Animal Sciences,Zhejiang University,Hangzhou 310058,China;State Key Laboratory of Industrial Control Technology,College of Control Science and Engineering,Zhejiang University,Hangzhou 310027,China;Institute of Process Equipment,College of Energy Engineering,Zhejiang University,Hangzhou 310027,China;State Key Laboratory of Rare Earth Resource Utilization,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China

工程（英文）

[1]Zongpu Xu;Mingrui Wu;Qi Ye;Dong Chen;Kai Liu;Hao Bai-.Spinning from Nature:Engineered Preparation and Application of High-Performance Bio-Based Fibers)[J].工程（英文）,2022(07):100-112

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