osmium tetroxide


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osmium tetroxide

n.
A volatile poisonous pale yellow solid, OsO4, with a pungent smell, used as an oxidizing agent and in solution to stain and fix biological material, especially lipids. Also called osmic acid.

osmium tetroxide

n
(Elements & Compounds) a yellowish poisonous water-soluble crystalline substance with a penetrating odour, used as a reagent and catalyst in organic synthesis. Formula: OsO4
References in periodicals archive ?
Geuna, "A simple protocol for paraffin-embedded myelin sheath staining with osmium tetroxide for light microscope observation," Microscopy Research and Technique, vol.
For TEM analysis, the samples were processed as described for SEM procedures up to the fixation in osmium tetroxide 1% for two hours.
For scanning electron microscopy, formalin-fixed lung tissues were trimmed into 2-4-mm pieces, postfixed for 1 h in 1% osmium tetroxide, and rinsed for 30 min in 0.
1 M phosphate buffer, post-fixed in 1% osmium tetroxide, dehydrated in alcohol, embedded in PolyBed 812 (Polysciences Inc.
For scanning electron microscopy (SEM) the material was fixed with glutaraldehyde on phosphate buffer followed by complete fixation in 1% solution of osmium tetroxide in the same buffer, subjected to dehydration in alcohol, acetone, then dried by critical point in the apparatus of the NDS-2 and sputtered with gold in the apparatus IB-2.
4, 2 h, 4[degrees]C) and post-fixed in presence of osmium tetroxide (2% osmium tetroxide in Milloning buffer 0.
2, for 3h, post-fixed in 1% osmium tetroxide in phosphate buffer, washed in the same buffer, dehydrated in a growing acetone series and embedded in Araldite resin (Durcupan ACM, Fluka, Sigma-Aldrich, St.
The later range from formalaldehyde, gluteraldehyde, to osmium tetroxide solutions, depending on type of tissue and purpose.
The technique uses a 1% solution of osmium tetroxide (Os[O.