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Cryogenic electron tomography (cryoET) is an imaging technique used to reconstruct high-resolution (~1–4 nm) three-dimensional volumes of samples, often (but not limited to) biological macromolecules and cells.
Cryogenic transmission electron microscopy (cryo-TEM) is a transmission electron microscopy technique that is used in structural biology and materials science. Colloquially, the term "cryogenic electron microscopy" or its shortening "cryo-EM" refers to cryogenic transmission electron microscopy by default, as the vast majority of cryo-EM is ...
It is also equipped with a monochromator, an electron biprism, an electron energy-loss spectrometer and a direct electron counting detector. In situ and quantitative electromagnetic field measurements can be carried out using a spherical aberration corrected transmission electron microscope equipped with a large (11 mm) objective pole-piece gap ...
CryoTEM image of GroEL suspended in amorphous ice at 50 000 × magnification Structure of Alcohol oxidase from Pichia pastoris by CryoTEM. Transmission electron cryomicroscopy (CryoTEM), commonly known as cryo-EM, is a form of cryogenic electron microscopy, more specifically a type of transmission electron microscopy (TEM) where the sample is studied at cryogenic temperatures (generally liquid ...
Scanning electron cryomicroscopy (CryoSEM) is a form of electron microscopy where a hydrated but cryogenically fixed sample is imaged on a scanning electron microscope's cold stage in a cryogenic chamber. The cooling is usually achieved with liquid nitrogen. [1]
Using an imaging technique called cryo-electron tomography, researchers have now discovered details of molecules and structures essential to RSV’s form and function.
This is useful for imaging specimens that would be volatile in high vacuum at room temperature. Cryo-STEM has been used to study vitrified biological samples, [33] vitrified solid-liquid interfaces in material specimens, [34] and specimens containing elemental sulfur, which is prone to sublimation in electron microscopes at room temperature. [35]
The EM Data Bank or Electron Microscopy Data Bank (EMDB) collects 3D EM maps and associated experimental data determined using electron microscopy of biological specimens. It was established in 2002 at the MSD/PDBe group of the European Bioinformatics Institute (EBI) , where the European site of the EMDataBank.org consortium is located. [ 2 ]
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