osmication

os·mi·ca·tion

, osmification (os'mi-kā'shŭn, os'mi-fi-kā'shŭn),
The fixation of tissue with an osmic acid solution; also serves as a stain for both light and electron microscopy.
References in periodicals archive ?
Before and after osmication, the tissue was repeatedly rinsed in 0.1 M sodium cacodylate at pH 7.4.
Transmission electron microscopy (TEM) samples were removed and processed by fixation, osmication, dehydration (Lynn et al., 1992), infiltration, and embedding in modified Spurr's resin (Spurr, 1969).