Advanced Materials

Silk Fibers Extruded Artificially from Aqueous Solutions of Regenerated Bombyx mori Silk Fibroin are Tougher than their Natural Counterparts

Authors

  • Guanqiang Zhou,

    1. The Key Laboratory of Molecular Engineering of Polymers of MOE Department of Macromolecular Science Laboratory of Advanced Materials Fudan University 220 Handan Road, Shanghai, 200433 (PR China)
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  • Zhengzhong Shao,

    1. The Key Laboratory of Molecular Engineering of Polymers of MOE Department of Macromolecular Science Laboratory of Advanced Materials Fudan University 220 Handan Road, Shanghai, 200433 (PR China)
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  • David P. Knight,

    1. Department of Zoology, University of Oxford South Parks Road, Oxford OX1 3PS (UK)
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  • Jiaping Yan,

    1. The Key Laboratory of Molecular Engineering of Polymers of MOE Department of Macromolecular Science Laboratory of Advanced Materials Fudan University 220 Handan Road, Shanghai, 200433 (PR China)
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  • Xin Chen

    Corresponding author
    1. The Key Laboratory of Molecular Engineering of Polymers of MOE Department of Macromolecular Science Laboratory of Advanced Materials Fudan University 220 Handan Road, Shanghai, 200433 (PR China)
    • The Key Laboratory of Molecular Engineering of Polymers of MOE Department of Macromolecular Science Laboratory of Advanced Materials Fudan University 220 Handan Road, Shanghai, 200433 (PR China).
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Abstract

Regenerated silk fibers extruded from fibroin solutions are highly lustrous and have uniform diameters and circular cross-sections. They are stronger, more extensible, and tougher than natural silkworm silk. These fibers can be spun under clean, sterile, and carefully regulated conditions, and may permit direct incorporation of drugs for controlled release, being suitable for biomedical applications.

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