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Related Concept Videos

Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
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Phase-Contrast Microscopes
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
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Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
Super-resolution Fluorescence Microscopy01:37

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Simultaneous Label-Free Autofluorescence Multi-Harmonic Microscopy
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Simultaneous Label-Free Autofluorescence Multi-Harmonic Microscopy

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Simultaneous multiplane in vivo nonlinear microscopy using spectral encoding.

Lauren E Grosberg1, Brenda R Chen, Elizabeth M C Hillman

  • 1Laboratory for Functional Optical Imaging, Departments of Biomedical Engineering and Radiology, Columbia University, New York, New York 10027, USA. leg2127@columbia.edu

Optics Letters
|July 25, 2012
PubMed
Summary
This summary is machine-generated.

This study introduces spectral encoding for laser scanning microscopy, enabling parallel imaging of multiple fields of view. This novel approach significantly enhances acquisition speeds for 3D volumes and in vivo imaging.

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Simultaneous Multicolor Imaging of Biological Structures with Fluorescence Photoactivation Localization Microscopy
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Simultaneous Multicolor Imaging of Biological Structures with Fluorescence Photoactivation Localization Microscopy

Published on: December 9, 2013

Area of Science:

  • Biomedical Optics
  • Microscopy Techniques
  • In Vivo Imaging

Background:

  • Conventional laser scanning microscopy (LSM) point-by-point imaging limits speed, especially for 3D volumes.
  • High-speed imaging is crucial for observing dynamic biological processes in vivo.
  • Existing methods struggle to balance resolution, speed, and field of view.

Purpose of the Study:

  • To develop a novel parallel imaging approach for laser scanning microscopy.
  • To overcome the speed limitations of conventional point-by-point acquisition schemes.
  • To enable simultaneous multi-plane or multi-region imaging within biological tissues.

Main Methods:

  • Utilized spectral encoding by focusing multiple beams of different wavelengths at distinct tissue positions.
  • Employed unique separation of fluorescence or second/third harmonic generation emissions from targeted regions.
  • Demonstrated simultaneous in vivo imaging in a living rodent cortex model.

Main Results:

  • Achieved parallelization of multiple fields of view through spectral encoding.
  • Successfully demonstrated simultaneous in vivo fluorescence imaging in two planes within the rodent cortex.
  • Showcased simultaneous second harmonic generation imaging in fresh tissue samples.

Conclusions:

  • Spectral encoding offers a powerful strategy for parallelized microscopy.
  • This technique significantly enhances imaging speed and efficiency for 3D and in vivo applications.
  • The method provides a versatile platform for advanced biological tissue visualization.