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.
Abbreviated EM. Microscopy in which an electron beam replaces light to form the image. See the entire definition of Electron microscopy
microscopy with the use of electron microscopes
A high-powered microscope that uses focused electron beams to create a greatly magnified image.
a form of microscopy in which a beam of electrons deflected by electromagnets can magnify a specimen up to 400, 000 times its original size.
Allows a sperm to be magnified thousands of times to look inside the cell so it can be evaluated for abnormalities not using general microscopy.
In general, any form of high-resolution imaging which uses a beam of electrons to probe the sample. Practical resolution for biological samples is about 2 nm, though the theoretical limit is about an order of magnitude higher.
Use of the electron microscope. This special microscope uses a stream of electrons (charged particles) instead of light to illuminate the tissues being studied. Much greater magnifications are possible using this method.
The visual examination of very small structures with a device that forms greatly magnified images of objects by using electrons rather than light to create an image. An electron microscope focuses a beam of electrons at an object and detects the actions of electrons as they scatter off the surface to form an image.
Electron microscopy is inspection with an electron microscope. An electron microscope utilizes streams of electrons deflected from their course by an electrostatic or electromagnetic field for magnification of objects. The final image is viewed on a fluorescent screen or recorded on a photographic plate. Because of greater resolving power, images may be magnified up to 40,000 diameters, more than any other type of microscope.