Definitions for "Electron Microscopy"
The examining of material using an electron microscope.
microscopic study utilizing streams of electrons deflected from their course by an electrostatic or electromagnetic field for the magnification of objects. Images may be magnified up to 400,000 diameters.
A technique that allows researchers to define biological structures in very fine detail by studying the electron activity of proteins. An electron beam is focused with a magnet and directed onto the sample in question. The effect of the beam on the sample is magnified many fold before hitting a detector, which then transposes the image onto a computer screen. It is possible to detect proteins in a tissue sample using antibodies and electron microscopy. There are two main forms of electron microscopy, transmission electron microscopy (TEM), where electrons pass through the sample, and scanning electron microscopy (SEM), where electrons are deflected from the sample. Electron microscopy has slightly less resolution than other techniques for protein analysis.