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Osmium

Osmium tetroxide is both a stain and a fixative for lipid. At the light microscopic level, as seen here, the reaction of osmium with lipid produces a brown color. Osmium is also routinely used to preserve lipid during tissue preparation for electron microscopy, where it also provides additional electron density to the tissue. Toluidine blue stain of oviduct 1000x

Lipid droplets <p>Osmium tetroxide is both a stain and a fixative for lipid. At the light microscopic level, as seen here, the reaction of osmium with lipid produces a brown color. Osmium is also routinely used to preserve lipid during tissue preparation for electron microscopy, where it also provides additional electron density to the tissue. Toluidine blue stain of oviduct 1000x</p>

Lipid droplets

Osmium tetroxide is both a stain and a fixative for lipid. At the light microscopic level, as seen here, the reaction of osmium with lipid produces a brown color. Osmium is also routinely used to preserve lipid during tissue preparation for electron microscopy, where it also provides additional electron density to the tissue. Toluidine blue stain of oviduct 1000x
Nuclei <p>Osmium tetroxide is both a stain and a fixative for lipid. At the light microscopic level, as seen here, the reaction of osmium with lipid produces a brown color. Osmium is also routinely used to preserve lipid during tissue preparation for electron microscopy, where it also provides additional electron density to the tissue. Toluidine blue stain of oviduct 1000x</p>

Nuclei

Osmium tetroxide is both a stain and a fixative for lipid. At the light microscopic level, as seen here, the reaction of osmium with lipid produces a brown color. Osmium is also routinely used to preserve lipid during tissue preparation for electron microscopy, where it also provides additional electron density to the tissue. Toluidine blue stain of oviduct 1000x
Cytoplasm <p>Osmium tetroxide is both a stain and a fixative for lipid. At the light microscopic level, as seen here, the reaction of osmium with lipid produces a brown color. Osmium is also routinely used to preserve lipid during tissue preparation for electron microscopy, where it also provides additional electron density to the tissue. Toluidine blue stain of oviduct 1000x</p>

Cytoplasm

Osmium tetroxide is both a stain and a fixative for lipid. At the light microscopic level, as seen here, the reaction of osmium with lipid produces a brown color. Osmium is also routinely used to preserve lipid during tissue preparation for electron microscopy, where it also provides additional electron density to the tissue. Toluidine blue stain of oviduct 1000x
Cilia <p>Osmium tetroxide is both a stain and a fixative for lipid. At the light microscopic level, as seen here, the reaction of osmium with lipid produces a brown color. Osmium is also routinely used to preserve lipid during tissue preparation for electron microscopy, where it also provides additional electron density to the tissue. Toluidine blue stain of oviduct 1000x</p>

Cilia

Osmium tetroxide is both a stain and a fixative for lipid. At the light microscopic level, as seen here, the reaction of osmium with lipid produces a brown color. Osmium is also routinely used to preserve lipid during tissue preparation for electron microscopy, where it also provides additional electron density to the tissue. Toluidine blue stain of oviduct 1000x
Main SlideLipid dropletsNucleiCytoplasmCilia