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Related Concept Videos

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...
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...

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Related Experiment Video

Updated: Jul 10, 2026

Electron Cryotomography of Bacterial Cells
14:23

Electron Cryotomography of Bacterial Cells

Published on: May 6, 2010

Electron cryotomography.

Gavin E Murphy1, Grant J Jensen

  • 1California Institute of Technology, Pasadena, CA, USA.

Biotechniques
|November 21, 2007
PubMed
Summary
This summary is machine-generated.

Electron cryotomography reconstructs biological structures like viruses and cells in 3D. This technique offers insights into near-native states at approximately 5-nm resolution.

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Last Updated: Jul 10, 2026

Electron Cryotomography of Bacterial Cells
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Published on: May 6, 2010

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Area of Science:

  • Structural biology
  • Biophysics
  • Microscopy

Background:

  • Electron cryotomography (Cryo-ET) is an advanced imaging technique.
  • It enables visualization of biological specimens in a near-native state.

Purpose of the Study:

  • To provide a concise overview of electron cryotomography.
  • To summarize key aspects including instrumentation, sample prep, data collection, and results.

Main Methods:

  • Utilizes electron cryotomography for 3D reconstruction.
  • Achieves resolutions of approximately 5 nm.

Main Results:

  • Reconstructs structures of macromolecules, viruses, and small cells.
  • Demonstrates the capability to visualize unique biological objects.

Conclusions:

  • Electron cryotomography is a powerful emerging technique for structural analysis.
  • Highlights instrumentation, sample preparation, data collection, and future prospects.