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Related Experiment Video

Updated: Mar 23, 2026

Preparation and 3D Tracking of Catalytic Swimming Devices
06:50

Preparation and 3D Tracking of Catalytic Swimming Devices

Published on: July 1, 2016

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Note: On-chip multifunctional fluorescent-magnetic Janus helical microswimmers.

G Hwang1, D Decanini1, L Leroy1

  • 1Laboratoire de Photonique et de Nanostructures, CNRS, Route de Nozay, Marcoussis 91460, France.

The Review of Scientific Instruments
|April 3, 2016
PubMed
Summary
This summary is machine-generated.

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Researchers developed fluorescent-magnetic helical microswimmers for microfluidic devices. These self-illuminating microswimmers offer precise control and propulsion, advancing biological applications.

Area of Science:

  • Microfluidics
  • Nanotechnology
  • Biomedical Engineering

Background:

  • Microfluidic devices are crucial for biological applications.
  • Controlling microswimmers within these devices, especially helical ones, presents challenges.
  • Few methods exist for self-illumination and propulsion of microswimmers in microchannels.

Purpose of the Study:

  • To fabricate and demonstrate multifunctional fluorescent-magnetic helical microswimmers.
  • To integrate these microswimmers into microfluidic devices.
  • To enable controlled propulsion and micromanipulation within microchannels.

Main Methods:

  • Fabrication using two-photon laser lithography for 3D nanostructures.
  • Magnetic thin film deposition via shadowing.

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Last Updated: Mar 23, 2026

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  • Detachment using injected gas bubbles.
  • Propulsion using external electromagnetic coils.

    • Main Results:

    • Successful fabrication of fluorescent-magnetic helical microswimmers.
    • Demonstrated gentle detachment from microfluidic surfaces.
    • Achieved robust magnetic propulsion within microfluidic channels.
    • Microswimmers exhibited fluorescence and resistance to surface tension.

    Conclusions:

    • These microswimmers are suitable for high-resolution, large-range micromanipulation.
    • Their self-illumination and propulsion capabilities offer revolutionary potential for biological applications.
    • The developed integration and control methods are effective for microfluidic systems.