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Updated: Jun 11, 2026

Generation of Size-controlled Poly (ethylene Glycol) Diacrylate Droplets via Semi-3-Dimensional Flow Focusing Microfluidic Devices
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Deformable liquid droplets for optical beam control.

Hongwen Ren1, Su Xu, Shin-Tson Wu

  • 1Department of Polymer Nano-Science and Engineering, Chonbuk National University Jeonju, Jeonbuk, 561-756, Republic of Korea. hongwen@jbnu.ac.kr

Optics Express
|July 1, 2010
PubMed
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This summary is machine-generated.

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We show that voltage can reshape liquid droplets, making them flat by increasing dielectric forces. Removing the voltage allows the droplet to return to its original spherical shape, enabling potential optical applications.

Area of Science:

  • Physics
  • Materials Science
  • Engineering

Background:

  • Liquid droplets exhibit surface tension, influencing their shape.
  • Controlling droplet morphology is crucial for various microfluidic and optical applications.

Purpose of the Study:

  • To demonstrate voltage-induced reshaping of liquid droplets.
  • To investigate the reversibility and speed of droplet shape change.
  • To explore potential applications in optical beam control.

Main Methods:

  • Applying external voltage to a liquid droplet situated between substrates.
  • Observing and analyzing the droplet's surface profile changes.
  • Investigating the effect of different liquid properties and voltage levels.

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Film Control to Study Contributions of Waves to Droplet Impact Dynamics on Thin Flowing Liquid Films
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Published on: April 5, 2022

Related Experiment Videos

Last Updated: Jun 11, 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

Glass-Based Devices to Generate Drops and Emulsions
08:45

Glass-Based Devices to Generate Drops and Emulsions

Published on: April 5, 2022

Main Results:

  • Liquid droplet surface profile is controllable via applied voltage.
  • Droplet shape transitions from spherical to flat upon voltage application due to dielectric forces.
  • The droplet reversibly returns to its spherical shape when voltage is removed.
  • Low voltages and fast transition speeds are achievable with appropriate liquid selection.

Conclusions:

  • Voltage-responsive liquid droplets offer a novel method for dynamic shape control.
  • The reversible and rapid nature of this phenomenon presents opportunities for advanced optical devices.
  • Deformable droplets show promise for applications such as tunable optical elements and beam steering.