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Related Experiment Video

Updated: Jun 15, 2026

Microfluidic Chips Controlled with Elastomeric Microvalve Arrays
18:11

Microfluidic Chips Controlled with Elastomeric Microvalve Arrays

Published on: October 1, 2007

Two-dimensional microfluidics using circuits of wettability contrast.

Patricia Burriel1, Jordi Ignés-Mullol, Josep Claret

  • 1Departament de Química Física, Universitat de Barcelona, 08028 Barcelona, Catalunya, Spain.

Langmuir : the ACS Journal of Surfaces and Colloids
|March 12, 2010
PubMed
Summary

Researchers developed a device for controlled Langmuir monolayer flow on wet circuits. This innovation enables precise measurements, demonstrated by calculating a fluorescent probe

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Area of Science:

  • Materials Science
  • Surface Chemistry
  • Fluid Dynamics

Background:

  • Langmuir monolayers are crucial in various applications, including electronics and biomaterials.
  • Controlling their flow on solid supports is challenging but essential for device fabrication.
  • Existing methods lack precision in managing monolayer dynamics on patterned surfaces.

Purpose of the Study:

  • To introduce a novel device for monitored and controlled flow of Langmuir monolayers.
  • To demonstrate the device's utility in fabricating predesigned wet circuits on solid supports.
  • To validate flow stability and control using two distinct device designs.

Main Methods:

  • Engraving hydrophilic tracks on a solid support in contact with a hydrophobic metallic plate.

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Last Updated: Jun 15, 2026

Microfluidic Chips Controlled with Elastomeric Microvalve Arrays
18:11

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Published on: October 1, 2007

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10:39

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Published on: April 12, 2018

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  • Integrating the patterned support into a custom-designed three-compartment Langmuir trough.
  • Utilizing Y-junction geometry within the device to study fluid dynamics.
  • Measuring the diffusion coefficient of a fluorescent probe to assess device performance.

    • Main Results:

    • Successful demonstration of monitored Langmuir monolayer flow on predesigned wet circuits.
    • Confirmation of flow stability and control with two tested device designs.
    • Accurate measurement of the diffusion coefficient of a fluorescent probe, validating the device's utility.
    • The device enables precise manipulation of monolayers on patterned surfaces.

    Conclusions:

    • The developed device offers a new platform for controlled Langmuir monolayer manipulation.
    • This technology facilitates the fabrication of complex microfluidic devices and functional surfaces.
    • The ability to monitor and control monolayer flow opens avenues for advanced material patterning and characterization.