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Trichrome stains in which dyes and a polyacid are applied sequentially are called multi-step trichromes. In "one-step" methods, all the dyes—with or without a polyacid—are combined in a single solution. One of the oldest single-step approaches to trichrome staining is van Gieson's method, which stains muscle and cytoplasm yellow, and ...
Masson's trichrome is a three-colour staining procedure used in histology. The recipes emerged from Claude L. Pierre Masson 's (1880–1959) original formulation have different specific applications, but all are suited for distinguishing cells from surrounding connective tissue .
Trichrome stains are staining methods in which three anionic dyes are used, in conjunction with either phosphomolybdic acid (PMA), phosphotungstic acid (PTA), or a mixture of these heteropolyacids. Probably the first trichrome method was that of Frank B Mallory, an American pathologist, first published in 1900. [ 1 ]
In Masson's trichrome, it is used as a counterstain to acid fuchsin. It is a component of Papanicolaou stains together with eosin Y and bismarck brown Y. [1] In pap smears, Light Green SF confers a blue staining for the cytoplasm of active cells such as columnar cells, parabasal squamous cells, and intermediate squamous cells. [3]
Lillie's trichrome is a combination of dyes used in histology. It is similar to Masson's trichrome stain , but it uses Biebrich scarlet for the plasma stain. It was initially published by Ralph D. Lillie in 1940. [ 1 ]
First he studied the special histological structure of bone, but histochemistry soon became his main field of research, which made him world-famous. He developed the Gömöri trichrome stain and Gömöri methenamine silver stain. Gömöri died at his home in Palo Alto, California, in 1957 following a heart attack. [3] [4]
Phosphomolybdic is used as a stain for developing thin-layer chromatography plates, [4] staining phenolics, hydrocarbon waxes, alkaloids, and steroids. Conjugated unsaturated compounds reduce PMA to molybdenum blue. The color intensifies with increasing number of double bonds in the molecule being stained. [5]
Mallory's trichrome stain also called Mallory's Triple Stain is a stain utilized in histology to aid in revealing different macromolecules that make up the cell. It uses the three stains: aniline blue , acid fuchsin , and orange G .