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Related Concept Videos

Precipitate Formation and Particle Size Control01:16

Precipitate Formation and Particle Size Control

In precipitation gravimetry, the precipitating agent should react specifically or selectively with the analyte. While a specific reagent reacts with the analyte alone, a selective reagent can react with a limited number of chemical species.
The obtained precipitate should be either a pure substance of known composition or easily converted to one by a simple process, such as ignition or drying. In addition, the precipitate should be insoluble and easily filterable. In general, filterability...

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Updated: Jun 24, 2026

Particle Templated Emulsification enables Microfluidic-Free Droplet Assays
11:03

Particle Templated Emulsification enables Microfluidic-Free Droplet Assays

Published on: March 9, 2021

Janus particles templated from double emulsion droplets generated using microfluidics.

Chia-Hung Chen1, Rhutesh K Shah, Adam R Abate

  • 1Cavendish Laboratory, University of Cambridge, J J Thomson Avenue, Cambridge CB3 0HE, United Kingdom. chc43@cam.ac.uk

Langmuir : the ACS Journal of Surfaces and Colloids
|April 16, 2009
PubMed
Summary
This summary is machine-generated.

This study introduces a microfluidics method to create Janus particles from two distinct materials. The technique offers precise control over particle characteristics like size and shape.

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Area of Science:

  • Materials Science
  • Chemical Engineering
  • Nanotechnology

Background:

  • Janus particles, with distinct properties on each hemisphere, are valuable for advanced applications.
  • Fabricating Janus particles with materials of contrasting properties presents significant challenges.

Purpose of the Study:

  • To develop a straightforward microfluidics-based technique for Janus particle fabrication.
  • To enable the creation of Janus particles from materials with widely differing properties.

Main Methods:

  • Utilizing double-emulsion droplets as templates within a microfluidic device.
  • Employing two immiscible fluids to template each half of the Janus particle.

Main Results:

  • Successful fabrication of Janus particles with two materials of vastly different properties.
  • Microfluidics enables excellent control over particle size, morphology, and monodispersity.

Conclusions:

  • The presented microfluidics technique offers a simple and effective route to Janus particle synthesis.
  • This method provides a versatile platform for creating functional Janus particles for diverse applications.