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High-resolution confocal microscopy using synchrotron radiation

C J van der Oord1, G R Jones, D A Shaw

  • 1Department of Molecular Biophysics, Utrecht University, The Netherlands.

Journal of Microscopy
|June 1, 1996
PubMed
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This study introduces a novel confocal scanning light microscope utilizing synchrotron radiation for advanced imaging. It achieves sub-100 nm resolution, enabling real-time visualization of biological processes like hormone transport.

Area of Science:

  • Optics and Photonics
  • Microscopy
  • Biophysics

Background:

  • Confocal microscopy typically uses limited wavelength ranges.
  • Synchrotron radiation offers a broad spectrum, enabling versatile imaging.
  • UV light is crucial for high-resolution imaging and studying natural fluorophores.

Purpose of the Study:

  • To describe a novel confocal scanning light microscope integrated with synchrotron radiation.
  • To demonstrate its capability for high-resolution imaging across a wide wavelength range (200-700 nm).
  • To showcase its application in visualizing biological processes using natural fluorophores.

Main Methods:

  • Coupling a confocal scanning light microscope to the Daresbury Synchrotron Radiation Source.
  • Utilizing achromatic quartz/CaF2 optics for broad wavelength transmission.

Related Experiment Videos

  • Performing test measurements with 290-nm UV light.

    • Main Results:

    • Achieved lateral resolution better than 100 nm using UV light.
    • Demonstrated tunable excitation wavelength matching fluorescent dye absorption.
    • Enabled real-time imaging of hormone traffic using coumestrol.

    Conclusions:

    • The developed microscope offers superior resolution and spectral flexibility.
    • It facilitates the study of naturally occurring fluorophores and dynamic biological processes.
    • This technology opens new avenues for high-resolution live-cell imaging and molecular studies.