shadow-casting

shadow-casting
Vacuum evaporation and deposition of a film of carbon or metals such as palladium, platinum, or chromium on a contoured microscopic object in order to allow the object to be seen in relief with the electron microscope or sometimes with the light microscope.

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shadow-casting n the production of exaggerated contrast in electron microscopy by irradiating the specimen obliquely with a beam esp. of gold atoms which makes opaque films on the slide in exact imitation of shadows

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shad·ow-cast·ing (shadґo-kastґing) a technique for increasing the visibility of ultramicroscopic specimens under the microscope by applying a coating of chromium, gold, or other metal.

Medical dictionary. 2011.

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