Advanced Materials

Micro/Nanometer-Scale Fiber with Highly Ordered Structures by Mimicking the Spinning Process of Silkworm

Authors

  • Su-Kyoung Chae,

    1. Department of Biomedical Engineering, College of Health Science, Korea University, Jeongeung-dong, Seongbuk-gu, Seoul, 136-703, Republic of Korea
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  • Edward Kang,

    1. Department of Biomedical Engineering, College of Health Science, Korea University, Jeongeung-dong, Seongbuk-gu, Seoul, 136-703, Republic of Korea
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  • Ali Khademhosseini,

    1. Center for Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, USA
    2. Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
    3. Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts 02115, USA
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  • Sang-Hoon Lee

    Corresponding author
    1. Department of Biomedical Engineering, College of Health Science, Korea University, Jeongeung-dong, Seongbuk-gu, Seoul, 136-703, Republic of Korea
    • Department of Biomedical Engineering, College of Health Science, Korea University, Jeongeung-dong, Seongbuk-gu, Seoul, 136-703, Republic of Korea.
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Abstract

A new method for the microfluidic spinning of ultrathin fibers with highly ordered structures is proposed by mimicking the spinning mechanism of silkworms. The self-aggregation is driven by dipole–dipole attractions between polar polymers upon contact with a low-polarity solvent to form fibers with nanostrands. The induction of Kelvin–Helmholtz instabilities at the dehydrating interface between two miscible fluids generates multi-scale fibers in a single microchannel.

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