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Adv Mater. 2013 Jun 11;25(22):3071-8. doi: 10.1002/adma.201300837. Epub 2013 Apr 25.

Micro/Nanometer-scale fiber with highly ordered structures by mimicking the spinning process of silkworm.

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

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.

Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

PMID:
23616339
[PubMed - indexed for MEDLINE]
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