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Microscope enabling multimodality imaging, angle-resolved scattering, and scattering spectroscopy.

W J Cottrell1, J D Wilson, T H Foster

  • 1Institute of Optics and Departments of Physics and of Imaging Sciences, University of Rochester, Rochester, NY 14642, USA.

Optics Letters
|August 19, 2007
PubMed
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We developed a versatile microscope system for simultaneous imaging and light scattering spectroscopy. This advanced tool aids in studying subcellular biophysics and cell behavior using light scattering and fluorescence techniques.

Area of Science:

  • Biophysics
  • Optical Microscopy
  • Spectroscopy

Background:

  • Multimodal optical microscopy is crucial for understanding cellular processes.
  • Integrating diverse imaging and spectroscopy techniques into a single platform presents significant technical challenges.
  • Characterizing subcellular structures requires high-resolution imaging and sensitive spectroscopic analysis.

Purpose of the Study:

  • To design and build a multifunctional imaging and scattering spectroscopy system.
  • To enable co-registered acquisition of various optical signals from the same field of view.
  • To provide a platform for investigating the biophysical implications of subcellular light scattering in conjunction with fluorescence microscopy.

Main Methods:

  • A commercial inverted microscope was adapted with a custom fiber-based illumination system.

Related Experiment Videos

  • The system integrates brightfield, Fourier-filtered darkfield, and fluorescence imaging.
  • Monochromatic angle-resolved scattering and white-light wavelength-resolved scattering spectroscopy were implemented.

    • Main Results:

    • The system successfully integrates multiple imaging and spectroscopy modalities.
    • Experimental verification using fluorescent microspheres confirmed the performance of each data acquisition mode.
    • Co-registered data acquisition from the same field of view was achieved.

    Conclusions:

    • The developed multifunctional instrument offers a powerful platform for advanced cell biology research.
    • It enables simultaneous investigation of subcellular light scattering and fluorescence.
    • This integrated approach facilitates studies on the biophysical properties of adherent cells.