orthochromasia
Sign in to saveAlso known as orthochromatic, orthochromatic erythrocyte
In chemistry, orthochromasia is the property of a dye or stain to not change color on binding to a target, as opposed to metachromatic stains, which do change color. The word is derived from the Greek orthos (correct, upright), and chromatic (color). Toluidine blue is an example of a partially orthochromatic dye, as it stains nucleic acids by its orthochromatic color (blue), but stains mast cell granules in its metachromatic color (red).
In the Vinony graph
Within Vinony's link graph, orthochromasia is referenced by 66 other articles, and connects out to panchromatic film, chemistry and International Standard Book Number.
It is catalogued under the topic Photographic film types.
Its subject is documented across 6 Wikipedia language editions.
Wikidata facts
- Instance of
- property
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- Commons category
- Orthochromasia
- opposite of
- metachromasia
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Encyclopedic overview
4 sectionsContents
- Orthochromatic photography
- Relative to panchromasia
- See also
- References
In chemistry, orthochromasia is the property of a dye or stain to not change color on binding to a target, as opposed to metachromatic stains, which do change color. The word is derived from the Greek orthos (correct, upright), and chromatic (color). Toluidine blue is an example of a partially orthochromatic dye, as it stains nucleic acids by its orthochromatic color (blue), but stains mast cell granules in its metachromatic color (red).
In spectral terms, orthochromasia refers to maintaining the position of spectral peaks, while metachromasia refers to a shift in wavelength, becoming either shorter or longer.
Excerpted from Wikipedia’s “orthochromasia” article, available under the CC BY-SA 4.0 licence.