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Updated: Jul 13, 2026
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Preparing Lamellae from Vitreous Biological Samples Using a Dual-Beam Scanning Electron Microscope for Cryo-Electron Tomography
Published on: August 5, 2021
Cryoultramicrotomy: cryoelectron microscopy of vitreous sections
Dimitri Vanhecke1, Luca Studer, Daniel Studer
1Institut für Anatomie, University of Bern, Switzerland.
Methods in Molecular Biology (Clifton, N.J.)
|July 28, 2007
Summary
Cryoultramicrotomy preserves biological samples at atomic resolution for cryoelectron microscopy. This guide details methods to overcome challenges like ice contamination and sample transfer for successful ultra-thin cryosectioning.
Area of Science:
- Cryo-electron microscopy and sample preparation techniques.
- Structural biology and molecular imaging.
Background:
- Cryoultramicrotomy sections vitrified biological samples, preserving atomic-level structures.
- Maintaining temperatures below -140°C is crucial but presents significant technical challenges.
Purpose of the Study:
- To provide practical solutions for common difficulties encountered during cryoultramicrotomy.
- To enable successful preparation of ultra-thin cryosections for high-resolution imaging.
Main Methods:
- Detailed description of specialized tools and techniques for cryosection handling.
- Strategies to prevent ice crystal contamination and recrystallization during preparation.
- Methods for efficient transfer of cryosections to electron microscopy grids and holders.
Main Results:
- Successful implementation of described tips and tricks overcomes common cryoultramicrotomy hurdles.
- Improved quality and integrity of ultra-thin cryosections are achieved.
- Facilitation of reliable structural analysis using cryoelectron microscopy.
Conclusions:
- Mastery of cryoultramicrotomy requires specific know-how and experience.
- The presented methods and tools significantly reduce technical burdens.
- Successful cryoultramicrotomy is achievable with careful attention to detail and appropriate techniques.
