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Multimodal microscopy for the simultaneous visualization of five different imaging modalities using a single light

Jiheun Ryu1,2, Ungyo Kang3,2, Joon Woo Song4

  • 1Massachusetts General Hospital, Wellman Center for Photomedicine, 55 Fruit Street, Boston, MA 02114, USA.

Biomedical Optics Express
|October 25, 2021
PubMed
Summary
This summary is machine-generated.

Researchers developed a novel high-speed multimodal optical microscope. This system simultaneously captures five imaging contrasts in real-time, enhancing biological tissue analysis.

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Area of Science:

  • Biomedical Optics
  • Microscopy
  • Advanced Imaging Techniques

Background:

  • Optical microscopy offers subcellular resolution for biomedical research.
  • Combining multiple imaging modalities is challenging due to system complexity and speed limitations for in vivo applications.

Purpose of the Study:

  • To develop a novel, high-speed multimodal optical microscope system.
  • To simultaneously visualize five distinct microscopic contrasts using a single laser source.

Main Methods:

  • Utilized a single femtosecond pulsed laser.
  • Integrated two-photon excitation, second-harmonic generation, backscattered light, near-infrared fluorescence, and fluorescence lifetime imaging.
  • Achieved real-time imaging at 3.7 frames per second.

Main Results:

  • Successfully visualized five different microscopic contrasts simultaneously.
  • Demonstrated high-speed, real-time imaging capabilities.
  • Provided complementary optical information to enhance structural and functional contrasts.

Conclusions:

  • The developed system offers a highly photon-efficient solution for multimodal optical microscopy.
  • Enables comprehensive assessment of biological tissue properties.
  • Overcomes limitations of previous complex or slow multimodal systems for in vivo imaging.