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Related Concept Videos

Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been developed.
Three-Dimensional Microscopy in Microbiology01:28

Three-Dimensional Microscopy in Microbiology

Three-dimensional imaging techniques are essential in cell biology, allowing researchers to visualize intricate cellular structures with high resolution. Two prominent methods, Differential Interference Contrast Microscopy (DIC) and Confocal Scanning Laser Microscopy (CSLM), provide distinct advantages for imaging live and thick specimens, respectively.Differential Interference Contrast MicroscopyDIC microscopy enhances contrast in transparent, unstained samples by converting phase...
Overview of Electron Microscopy01:25

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Imaging Biological Samples with Optical Microscopy01:18

Imaging Biological Samples with Optical Microscopy

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...
Overview of Microscopy Techniques01:22

Overview of Microscopy Techniques

The early pioneers of microscopy opened a window into the invisible world of microorganisms. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes that leveraged nonvisible light, such as fluorescence microscopy that uses an ultraviolet light source and electron microscopy that uses short-wavelength electron beams. These advances significantly improved magnification, image resolution, and contrast. By comparison, the...
Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

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Single Plane Illumination Module and Micro-capillary Approach for a Wide-field Microscope
08:53

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Published on: August 15, 2014

Ultramicroscopy: light-sheet-based microscopy for imaging centimeter-sized objects with micrometer resolution.

Klaus Becker, Nina Jährling, Saiedeh Saghafi

    Cold Spring Harbor Protocols
    |August 3, 2013
    PubMed
    Summary
    This summary is machine-generated.

    Ultramicroscopy (UM) provides detailed 3D reconstructions of large biological samples. This advanced imaging technique uses light sheet illumination for precise micrometer-resolution analysis of intact specimens like mouse brains and Drosophila.

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    Published on: January 26, 2024

    Area of Science:

    • Biomedical Imaging
    • Microscopy Techniques
    • Optical Physics

    Background:

    • Ultramicroscopy (UM) is an advanced imaging method for high-resolution 3D reconstruction.
    • It is designed for macroscopic specimens (1-15 mm) including whole organs and embryos.
    • UM utilizes light sheet illumination, a technique shared with other modern microscopy approaches.

    Purpose of the Study:

    • To provide an overview of light-sheet-based microscopy.
    • To detail the physics behind light sheet generation.
    • To describe the construction and application of an ultramicroscope for biological research.

    Main Methods:

    • Illumination of specimens with two counterpropagating laser light sheets, perpendicular to observation.
    • Detailed description of ultramicroscope assembly, including mechanics, camera, and objectives.
    • Application of ultramicroscopy to fixed and chemically cleared biological tissues.

    Main Results:

    • Achieves precise and accurate 3D reconstructions with micrometer resolution.
    • Demonstrates the capability of UM for imaging intact macroscopic specimens.
    • Highlights the versatility of UM across various biological samples.

    Conclusions:

    • Ultramicroscopy is a powerful tool for detailed 3D imaging of biological specimens.
    • The described methods enable the construction and application of ultramicroscopes.
    • UM facilitates significant advancements in the study of organs, embryos, and model organisms.