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Related Concept Videos

Electron Microscope Tomography and Single-particle Reconstruction01:07

Electron Microscope Tomography and Single-particle Reconstruction

Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
Cryo-electron Microscopy01:28

Cryo-electron Microscopy

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...
Computed Tomography01:10

Computed Tomography

Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...

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Related Experiment Video

Updated: Jun 5, 2026

Cryo-Electron Tomography Remote Data Collection and Subtomogram Averaging
08:55

Cryo-Electron Tomography Remote Data Collection and Subtomogram Averaging

Published on: July 12, 2022

Cryo-electron tomography: methodology, developments and biological applications.

D Vanhecke1, S Asano, Z Kochovski

  • 1Max Planck Institute of Biochemistry, Martinsried, Germany.

Journal of Microscopy
|December 24, 2010
PubMed
Summary
This summary is machine-generated.

Cryo-electron tomography provides 3D molecular-level views of biological samples. This review covers essential sample preparation, technical details, and diverse applications of cryo-electron tomography in biology.

More Related Videos

Strategies for Optimization of Cryogenic Electron Tomography Data Acquisition
08:16

Strategies for Optimization of Cryogenic Electron Tomography Data Acquisition

Published on: March 19, 2021

Related Experiment Videos

Last Updated: Jun 5, 2026

Cryo-Electron Tomography Remote Data Collection and Subtomogram Averaging
08:55

Cryo-Electron Tomography Remote Data Collection and Subtomogram Averaging

Published on: July 12, 2022

Strategies for Optimization of Cryogenic Electron Tomography Data Acquisition
08:16

Strategies for Optimization of Cryogenic Electron Tomography Data Acquisition

Published on: March 19, 2021

Area of Science:

  • Structural biology
  • Cell biology
  • Biophysics

Background:

  • Cryo-electron tomography (cryo-ET) enables high-resolution 3D imaging of biological specimens.
  • Understanding cellular structures and molecular mechanisms requires advanced imaging techniques.

Purpose of the Study:

  • To review key sample preparation techniques for cryo-electron tomography.
  • To discuss critical technical aspects of cryo-ET.
  • To highlight recent biological applications of cryo-ET.

Main Methods:

  • Sample preparation for cryo-electron tomography, including vitrification and thinning.
  • Data acquisition and image processing strategies for cryo-ET.
  • Analysis of cryo-ET data for structural determination.

Main Results:

  • Cryo-ET allows visualization of macromolecular complexes, organelles, and cellular structures in situ.
  • Optimized sample preparation is crucial for achieving molecular resolution.
  • Diverse biological questions can be addressed using cryo-ET.

Conclusions:

  • Cryo-electron tomography is a powerful tool for molecular and cellular imaging.
  • Advances in sample preparation and data processing continue to expand cryo-ET capabilities.
  • Cryo-ET provides unprecedented insights into biological systems at molecular resolution.