TY - JOUR
T1 - Biosynthetic protein and nanocellulose composite fibers with extraordinary mechanical performance
AU - Zhao, Lai
AU - Li, Jingjing
AU - Zhang, Lili
AU - Gu, Xinquan
AU - Wei, Wei
AU - Sun, Jing
AU - Wang, Fan
AU - Chen, Chunying
AU - Zhao, Yuliang
AU - Zhang, Hongjie
AU - Liu, Kai
N1 - Funding Information:
This research was supported by the National Natural Science Foundation of China (Grant No. 22125701, 21877104, 22020102003, 22107097, 21907088 ), National Key R&D Program of China ( 2021YFB3502300, 2020YFA0908900, and 2021YFF0701800 ), Youth Innovation Promotion Association of CAS (Grant No. 2020228, 2021226 ).
Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/6
Y1 - 2022/6
N2 - Typical cellulose fibers exhibit a high mechanical strength but very low toughness, which severely limits their high-tech applications. It is thus becoming urgently important to develop new strategies to simultaneously improve their strength and toughness. In this regard, a new type of biomacromolecular composite fibers is fabricated by wet-spinning a solution of biosynthetic protein and nanocellulose. In stark contrast to pristine cellulose fibers, significantly improved mechanical performance, e.g., 551.2 MPa maximum breaking strength, 40.6 MJ m−3 toughness, and 12.5% extensibility were realized in a versatile way. Notably, robust fiber meshes with good impact resistance ability were developed. They can withstand a gravity potential energy of 0.020 J, which is 1.4-fold higher than their pristine nanocellulose counterparts. Moreover, their excellent biocompatibility and superior mechanical properties allow the composite biological fibers for efficient surgical suturing. This work offers a new strategy to fabricate high-performance biological fibers for high-tech applications.
AB - Typical cellulose fibers exhibit a high mechanical strength but very low toughness, which severely limits their high-tech applications. It is thus becoming urgently important to develop new strategies to simultaneously improve their strength and toughness. In this regard, a new type of biomacromolecular composite fibers is fabricated by wet-spinning a solution of biosynthetic protein and nanocellulose. In stark contrast to pristine cellulose fibers, significantly improved mechanical performance, e.g., 551.2 MPa maximum breaking strength, 40.6 MJ m−3 toughness, and 12.5% extensibility were realized in a versatile way. Notably, robust fiber meshes with good impact resistance ability were developed. They can withstand a gravity potential energy of 0.020 J, which is 1.4-fold higher than their pristine nanocellulose counterparts. Moreover, their excellent biocompatibility and superior mechanical properties allow the composite biological fibers for efficient surgical suturing. This work offers a new strategy to fabricate high-performance biological fibers for high-tech applications.
KW - Biological fiber
KW - Biomedicine
KW - Hybrid material
KW - Mechanical performance
KW - Synthetic protein
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U2 - 10.1016/j.nantod.2022.101485
DO - 10.1016/j.nantod.2022.101485
M3 - Article
AN - SCOPUS:85127924005
SN - 1748-0132
VL - 44
JO - Nano Today
JF - Nano Today
M1 - 101485
ER -