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Related Experiment Videos

3-dimensional imaging of collagen using second harmonic generation.

Guy Cox1, Eleanor Kable, Allan Jones

  • 1Electron Microscope Unit, University of Sydney, Sydney, NSW 2006, Australia. guy@emu.usyd.edu.au

Journal of Structural Biology
|February 11, 2003
PubMed
Summary

Collagen

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Area of Science:

  • Biophysics
  • Biomedical Optics
  • Structural Biology

Background:

  • Collagen is the primary structural protein in animals.
  • Its crystalline, triple-helix structure is key to its optical properties.

Purpose of the Study:

  • To introduce a novel microscopy technique utilizing collagen's optical properties.
  • To demonstrate its applications in medical and biological diagnostics.

Main Methods:

  • Harnessing the second harmonic generation (SHG) of incident light by collagen's structure.
  • Developing a high-resolution microscopy method based on SHG.

Main Results:

  • The novel microscopy provides sensitive, high-resolution collagen distribution data.

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  • It can differentiate between collagen types I and III.
  • It offers a sensitive diagnostic test for liver cirrhosis.

    • Conclusions:

    • This SHG-based microscopy is a significant advancement for medical and biological imaging.
    • Potential applications include studying wound healing and genetic collagen disorders like osteogenesis imperfecta.