丝绸
材料科学
纳米纤维
纳米技术
纳米复合材料
碳纳米纤维
碳纳米管
蜘蛛丝
分散剂
色散(光学)
复合材料
光学
物理
作者
Xingxing Tan,Yaqing Wang,Weihong Du,Tiancheng Mu
出处
期刊:Chemsuschem
[Wiley]
日期:2019-12-10
卷期号:13 (2): 321-327
被引量:36
标识
DOI:10.1002/cssc.201902979
摘要
Abstract With typical nanofibrous structure, silks spun by silkworms and spiders are the representative fibrous proteins that embody excellent mechanical properties and biological functions. However, it is still a challenge to directly extract silk nanofibers (SNFs) from natural silk fibers, to retain their nanostructures and properties, by a human‐ and environment‐friendly approach for practical applications. Here, an all‐natural strategy for simple, green, and scalable extraction of silkworm and spider silk protein nanofibers in natural deep eutectic solvents has been developed. The liquid‐exfoliated SNFs have adjustable diameters from 20 nm (at the single SNF scale) to 100 nm and could be dispersed in water and organic solvents, enabling the production of useful macroscopic biomaterials. The free‐standing SNF membranes made from silkworm silk nanofibers (SSNFs) exhibited cytocompatibility, flexibility, and excellent mechanical performance, providing the ability to fabricate sustainable materials for tissue engineering and green electronics. Moreover, the SSNF could be used as a green and efficient dispersant of multiwalled carbon nanotubes (MWCNTs), and the SSNFs/MWCNTs nanocomposite membranes could be used in wearable devices to monitor human activities.
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