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Bioinspired Multifunctional Spindle-Knotted Microfibers from Microfluidics.

Luoran Shang1,2, Fanfan Fu1,2, Yao Cheng1,2

  • 1State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China.

Small (Weinheim an Der Bergstrasse, Germany)
|April 14, 2016
PubMed
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Novel microfluidic technology creates functional heterostructured microfibers with tunable spindle-knots. These versatile microfibers offer precise control over size and spacing for diverse applications.

Area of Science:

  • Materials Science
  • Microfluidics
  • Polymer Science

Background:

  • Microfibers are essential in various applications, but controlling their structure and function remains challenging.
  • Developing advanced microfibers with integrated functionalities requires innovative fabrication techniques.

Purpose of the Study:

  • To develop a novel microfluidic method for fabricating heterostructured microfibers with precisely controlled spindle-knots and joints.
  • To demonstrate the tunable nature of knot formation and the diverse functionalities achievable through tailored coating fluids.

Main Methods:

  • Utilized a novel microfluidic system for integrative microfiber joint spinning, fluid coating, and knot emulsification.
  • Precisely controlled knot emulsification by adjusting flow rates, enabling high controllability over microfiber spindle-knot size and spacing.
Keywords:
biomaterialscolloidal crystalsmicrofibersmicrofluidicswettability

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  • Employed a variety of coating fluids to impart specific compositions and functionalities to the knots.

    • Main Results:

    • Successfully fabricated heterostructured microfibers with tunable spindle-knots and joints using the developed microfluidic technology.
    • Demonstrated precise control over the size and spacing of spindle-knots by adjusting microfluidic flow rates.
    • Engineered microfibers with diverse functionalities, including humidity-responsive water capture, thermally triggered water convergence, colloidal crystal assembly, and cell microcarrier arrays.

    Conclusions:

    • The novel microfluidic approach enables the efficient and controllable fabrication of functional heterostructured microfibers.
    • The developed microfibers exhibit remarkable versatility and potential for a wide range of applications due to their tunable structure and integrated functions.
    • This technology opens new avenues for designing advanced materials with tailored properties for specific technological needs.