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Related Concept Videos

Cryo-electron Microscopy01:28

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Conventional electron microscopy (EM) involves dehydration, fixation, and staining of biological samples, which distorts the native state of biological molecules and results in several artifacts. Also, the high-energy electron beam damages the sample and makes it difficult to obtain high-resolution images. These issues can be addressed using cryo-EM, which uses frozen samples and gentler electron beams. The technique was developed by Jacques Dubochet, Joachim Frank, and Richard Henderson, for...
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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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Related Experiment Video

Updated: May 3, 2026

Low-Cost Cryo-Light Microscopy Stage Fabrication for Correlated Light/Electron Microscopy
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The CryoCapsule: simplifying correlative light to electron microscopy.

Xavier Heiligenstein1, Jérôme Heiligenstein, Cédric Delevoye

  • 1Institut Curie, Centre de Recherche, Paris, 75248, France; Structure and Membrane Compartments, CNRS UMR144, Paris, 75248, France.

Traffic (Copenhagen, Denmark)
|February 19, 2014
PubMed
Summary
This summary is machine-generated.

Researchers developed the CryoCapsule, simplifying correlative light and electron microscopy sample preparation. This innovation enables easier multi-scale imaging for deciphering complex biological processes.

Keywords:
CryoCapsuleXenopus laevis mitotic spindlecorrelative light to electron microscopyendosomal networkfreeze substitutionhigh-pressure freezingimage registrationlangerinmelanosomesspatial resolutiontemporal resolution

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Area of Science:

  • Cell Biology
  • Microscopy Techniques
  • Biophysics

Background:

  • Correlating images from light microscopy (LM) and electron microscopy (EM) is crucial for understanding biological processes at multiple scales.
  • Current methods for correlating LM and EM are technically complex, hindering widespread adoption.
  • Bridging the gap between live-cell fluorescence imaging and high-resolution EM requires simplified sample preparation.

Purpose of the Study:

  • To develop and validate a novel device, the CryoCapsule, for simplifying correlative light and electron microscopy (CLEM).
  • To facilitate multi-scale imaging by streamlining sample preparation steps that bridge live-cell fluorescence and high-resolution EM.
  • To open new strategies for advanced CLEM applications in biological research.

Main Methods:

  • Design and manufacturing of the CryoCapsule device for biological specimens.
  • Integration of live-cell fluorescence imaging with high-resolution electron microscopy workflows.
  • Testing the CryoCapsule on diverse biological samples including Xenopus laevis mitotic spindle, melanoma cells, and melanocytic cells.

Main Results:

  • The CryoCapsule successfully simplifies the sample preparation required for CLEM.
  • Demonstrated compatibility with various biological specimens, including labeled subcellular organelles and endosomal systems.
  • Enabled seamless transition from fluorescence imaging to high-resolution EM for detailed structural analysis.

Conclusions:

  • The CryoCapsule is a highly optimized tool that significantly reduces the technical complexity of CLEM.
  • This device facilitates new strategies for multi-scale biological imaging, enhancing our ability to decipher cellular mechanisms.
  • The CryoCapsule is broadly applicable to diverse biological specimens, advancing correlative microscopy research.