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Related Experiment Videos

Planar lipid bilayer reconstitution with a micro-fluidic system.

Hiroaki Suzuki1, Kazuhito Tabata, Yasuyuki Kato-Yamada

  • 1Center for International Research on Micromechatronics, Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, Japan. hsuzuki@iis.u-tokyo.ac.jp.

Lab on a Chip
|October 9, 2004
PubMed
Summary

Researchers developed an automated microfluidic system to create planar lipid bilayers for studying membrane proteins. This method enhances electrophysiological studies and enables high-sensitivity sensing and drug screening.

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Area of Science:

  • Biophysics
  • Microfluidics
  • Biotechnology

Background:

  • Planar lipid bilayers are crucial for electrophysiological studies of membrane proteins.
  • Current methods for bilayer reconstitution can be labor-intensive and difficult to automate.
  • Microfluidic systems offer potential for miniaturization and automated biological assays.

Purpose of the Study:

  • To develop an automated microfluidic system for reconstituting planar lipid bilayers.
  • To optimize bilayer formation within microfluidic channels for electrophysiological measurements.
  • To explore the potential of this system for high-sensitivity sensing and drug screening.

Main Methods:

  • Fabrication of micro-channels connected by a small aperture on a substrate.
  • Alternating flow of lipid solution and buffer to form the bilayer at the aperture.

Related Experiment Videos

  • Application of parylene coating for improved bilayer stability and reduced electrical noise.

    • Main Results:

    • Successful reconstitution of planar lipid bilayers within the microfluidic system.
    • Demonstration of automated processing capabilities for bilayer formation.
    • Identification of parylene coating as beneficial for both bilayer formation and noise reduction.

    Conclusions:

    • The developed microfluidic system provides an automated and efficient method for planar lipid bilayer reconstitution.
    • This technology holds promise for advancing electrophysiological studies of membrane proteins.
    • Future applications include the development of high-sensitivity ion sensor chips and high-throughput drug screening devices.