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Updated: Oct 12, 2025

Microfluidic Fabrication of Polymeric and Biohybrid Fibers with Predesigned Size and Shape

Microfluidic Fabrication of Polymeric and Biohybrid Fibers with Predesigned Size and Shape

Published on: January 8, 2014

Programmable Knot Microfibers from Piezoelectric Microfluidics.

Chaoyu Yang^1,2,3,4, Yunru Yu^3,4, Xiaocheng Wang^3,4

¹Department of Clinical Laboratory, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008, China.

Small (Weinheim an Der Bergstrasse, Germany)

|November 26, 2021

Summary

This summary is machine-generated.

Researchers developed a piezoelectric microfluidic platform to spin functional microfibers with programmable knots. These advanced microfibers offer enhanced droplet handling and active water transport for diverse applications.

Keywords:

droplets piezoelectric microfluidics programmable microfibers spindle-knot microfibers water transportation

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Last Updated: Oct 12, 2025

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Published on: November 23, 2015

Area of Science:

Materials Science and Engineering
Microfluidics
Polymer Science

Background:

Microfibers possess significant application value across various fields.
Developing technologies for microfibers with controllable morphology and structure is crucial for enhanced functionality.

Purpose of the Study:

To present a piezoelectric microfluidic platform for spinning functional microfibers with programmable spindle-knots.
To demonstrate the capability of generating microfibers with uniform, gradient, and symmetrical knots.

Main Methods:

Utilized a piezoelectric microfluidic platform to synchronously vibrate a pregel-solution jet using programmable piezoelectric signals.
Achieved rapid polymerization of the vibrated jet to form microfibers with programmed knot morphologies.
Constructed higher-order knot fiber networks for advanced applications.

Main Results:

Successfully generated microfibers with controllable knot structures (uniform, gradient, symmetrical).
Demonstrated that programmed knot structures facilitate enhanced droplet handling and active water transport.
Showcased practical applications such as spray reactions and lab-on-a-chip vapor detection using knot fiber networks.

Conclusions:

The piezoelectric microfluidic platform offers a novel approach for microfiber spinning.
Programmable microfibers exhibit high applicability in chemical, biomedical, and environmental sectors.
The unique knot structure enables advanced fluid manipulation and sensing capabilities.