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Multiphoton microscopy in biological research.

R M Williams1, W R Zipfel, W W Webb

  • 1Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA. rw36@cornell.edu

Current Opinion in Chemical Biology
|October 2, 2001
PubMed
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Multiphoton microscopy is now essential for studying subcellular events in tissues and living mice. Its deep penetration and spectral flexibility allow detailed imaging of disease models and various fluorescent molecules.

Area of Science:

  • Biomedical Optics
  • Microscopy Techniques
  • In Vivo Imaging

Background:

  • Multiphoton microscopy (MPM) has advanced significantly over the past decade.
  • Initially a novelty, MPM is now a critical tool for subcellular analysis in biological tissues.

Purpose of the Study:

  • To highlight the evolution and capabilities of multiphoton microscopy.
  • To showcase its application in advanced biological and biomedical research.

Main Methods:

  • Utilizing deep optical penetration for subcellular investigations in living transgenic mouse models.
  • Leveraging enhanced spectral accessibility for aberration-free imaging across diverse fluorescent molecules and deep-UV absorption regimes.
  • Employing harmonic generation from multiphoton scattering for imaging specific structures and dyes.

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Main Results:

  • MPM enables deep optical penetration for subcellular resolution in vivo.
  • Simultaneous imaging of diverse fluorescent species is achievable with aberration-free quality.
  • Harmonic generation provides valuable contrast for structures like collagen and specific dyes.

Conclusions:

  • Multiphoton microscopy has transitioned into an indispensable technique for advanced biological research.
  • Its capabilities support detailed studies of disease models and molecular interactions within complex biological systems.