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Related Experiment Video

Updated: Nov 8, 2025

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Published on: May 20, 2014

Polymeric Microparticles Generated via Confinement-Free Fluid Instability.

Jianing Song¹, Wenluan Zhang^1,2, Dehui Wang¹

¹Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China.

Advanced Materials (Deerfield Beach, Fla.)

|April 23, 2021

Summary

This summary is machine-generated.

A new method uses superamphiphobic surfaces to create polymeric microparticles without confinement. This facile technique produces tunable, contamination-free microparticles at ambient temperature, suitable for various polymers and scalable production.

Keywords:

Plateau-Rayleigh instabilities droplets polymeric microparticles superamphiphobic surfaces wettability

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Last Updated: Nov 8, 2025

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Published on: July 3, 2018

Area of Science:

Materials Science
Polymer Science
Nanotechnology

Background:

In-fiber fluid instability offers scalable microparticle fabrication but requires thermal annealing and fiber dissolution.
Conventional methods face challenges with contamination-free particle production for high-temperature sensitive materials.

Purpose of the Study:

To develop a facile, contamination-free method for fabricating polymeric microparticles.
To demonstrate confinement-free fluid instability for microparticle generation at ambient temperature.

Main Methods:

Utilized superamphiphobic surfaces to induce confinement-free fluid instability.
Polymer solution columns spontaneously break into uniform droplets and form spherical particles.
Employed microfluidic spinning for large-scale production.

Main Results:

Fabricated polymeric microparticles with tunable sizes (1 mm down to 1 µm) at ambient temperature.
Achieved spontaneous particle formation in seconds.
Produced composite/structured micromaterials including fluorescent, magnetic, core-shell, and microcapsules.

Conclusions:

Confinement-free fluid instability on superamphiphobic surfaces provides a facile and scalable route for microparticle fabrication.
The method is versatile, applicable to various polymers and adaptable for producing complex micromaterials.
This approach holds significant promise for advanced polymer microprocessing applications.