Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 40, Issue 12, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201900111
Keywords
helical; microfibers; microfluidic; polymeric fibers; superhelical
Categories
Funding
- National Natural Science Foundation of China [21674073]
- National Key R&D Program of China [2018YFB1105700, 2016YFC1100100]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
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The helix and superhelix play critical roles in the achievement of tissue functions. These fascinating structures have attracted increasing interest due to their potential biomimicking applications. However, continuous and controlled fabrication of these structures, especially the superhelical structures, from various polymers for different practical applications still remains a big challenge. Here, a novel and versatile microfluidic spinning strategy is presented for generation of both helical and superhelical microfibers from either hydrophilic, hydrophobic, or amphiphilic polymers. The diameter (d ), wavelength (lambda), and amplitude (A) of these microfibers could be highly controlled. The helical microfibers show outstanding elongations and potential applications in magnetic responsive elastic microactuators. It is envisioned that these results will greatly enrich the possibility of generating new multiple-ordered structures from various polymers for applications in different areas.
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