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Related Experiment Video

Updated: May 13, 2026

Generation of Size-controlled Poly (ethylene Glycol) Diacrylate Droplets via Semi-3-Dimensional Flow Focusing Microfluidic Devices
11:08

Generation of Size-controlled Poly (ethylene Glycol) Diacrylate Droplets via Semi-3-Dimensional Flow Focusing Microfluidic Devices

Published on: July 3, 2018

SAW-controlled drop size for flow focusing.

Lothar Schmid1, Thomas Franke

  • 1University of Augsburg, EP I, SoftMatter Group, Augsburg, Germany.

Lab on a Chip
|March 22, 2013
PubMed
Summary
This summary is machine-generated.

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Researchers used surface acoustic waves (SAW) to precisely control droplet size in real-time. This electronic method offers a new way to regulate microfluidic drop formation without altering flow or device geometry.

Area of Science:

  • Microfluidics
  • Acoustic manipulation
  • Droplet generation

Background:

  • Controlling droplet size is crucial in microfluidics for applications like drug delivery and diagnostics.
  • Traditional methods require physical adjustments to flow rates or device dimensions, limiting real-time control.

Purpose of the Study:

  • To demonstrate a novel method for real-time, electronic control over droplet size.
  • To investigate the use of surface acoustic waves (SAW) for droplet formation regularization.

Main Methods:

  • Applying a localized surface acoustic wave (SAW) at the flow-focus junction of a microfluidic drop maker.
  • Utilizing electronic control of the SAW to influence droplet formation dynamics.

Main Results:

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Film Control to Study Contributions of Waves to Droplet Impact Dynamics on Thin Flowing Liquid Films
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Film Control to Study Contributions of Waves to Droplet Impact Dynamics on Thin Flowing Liquid Films

Published on: August 18, 2018

Fabrication, Operation and Flow Visualization in Surface-acoustic-wave-driven Acoustic-counterflow Microfluidics
12:26

Fabrication, Operation and Flow Visualization in Surface-acoustic-wave-driven Acoustic-counterflow Microfluidics

Published on: August 27, 2013

Related Experiment Videos

Last Updated: May 13, 2026

Generation of Size-controlled Poly (ethylene Glycol) Diacrylate Droplets via Semi-3-Dimensional Flow Focusing Microfluidic Devices
11:08

Generation of Size-controlled Poly (ethylene Glycol) Diacrylate Droplets via Semi-3-Dimensional Flow Focusing Microfluidic Devices

Published on: July 3, 2018

Film Control to Study Contributions of Waves to Droplet Impact Dynamics on Thin Flowing Liquid Films
07:08

Film Control to Study Contributions of Waves to Droplet Impact Dynamics on Thin Flowing Liquid Films

Published on: August 18, 2018

Fabrication, Operation and Flow Visualization in Surface-acoustic-wave-driven Acoustic-counterflow Microfluidics
12:26

Fabrication, Operation and Flow Visualization in Surface-acoustic-wave-driven Acoustic-counterflow Microfluidics

Published on: August 27, 2013

  • Achieved precise regularization of droplet formation using SAW.
  • Demonstrated electronic control of droplet size in real-time.
  • Maintained consistent droplet size without altering flow rates or microchannel dimensions.

Conclusions:

  • Surface acoustic waves provide an effective means for electronic control of droplet size in microfluidic devices.
  • This technique offers a non-invasive and adaptable approach for droplet generation.
  • The method has potential for advanced applications requiring precise droplet manipulation.