| DAPI stain | <technique> A sensitive fluorescent probe for DNA, 4'6-diamidino-2-phenylindole-2HCl, used in fluorescence microscopy to detect DNA in yeast mitochondria, chloroplasts, viruses, mycoplasma, and chromosomes; DNA is visualised in vitally stained living cells and after cells are fixed in formaldehyde. (05 Mar 2000) |
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| supravital stain | <technique> A procedure in which living tissue is removed from the body and cells are placed in a nontoxic dye solution so that their vital processes may be studied. (05 Mar 2000) |
| diazo stain | <technique> For argentaffin granules, in enterochromaffin cells, a variety of diazonium salts are used to blacken the cells. (05 Mar 2000) |
| Dieterle's stain | <technique> Stain used to demonstrate spirochetes and Leishman-Donovan bodies; employs silver nitrate and uranium nitrate. (05 Mar 2000) |
| differential stain | <technique> A dye used to colour one portion of a tissue or cell which remained unaffected when the other part was stained by a dye of different colour. Synonym: differential stain. (05 Mar 2000) |
| double stain | <technique> A mixture of two dyes, each of which stains different portions of a tissue or cell. (05 Mar 2000) |
| immunofluorescent stain | <technique> Stain resulting from combination of fluorescent antibody with antigen specific for the antibody portion of the fluorochrome conjugate. (05 Mar 2000) |
| India ink capsule stain | <technique> A negative stain for crystal bacteria in which cells appear purple (Gram's crystal violet) and the capsules appear clear against a dark background. (05 Mar 2000) |
| quinacrine chromosome banding stain | q-banding stain |
| intravital stain | <technique> A stain which is taken up by living cells after parenteral administration, e.g., intravenously or subcutaneously. (05 Mar 2000) |
| iodine stain | <technique> A stain to detect amyloid, cellulose, chitin, starch, carotenes, and glycogen, and to stain amoebas by virtue of their glycogen; faeces and other wet preparations are stained directly with Lugol's iodine solution; smears are treated with Schaudinn's fixative and then stained with alcoholic iodine, followed by Heidenhain's iron haematoxylin. (05 Mar 2000) |
| Orth's stain | <technique> A lithium carmine stain for nerve cells and their processes. (05 Mar 2000) |
| Taenzer's stain | <technique> An orcein solution used for staining elastic tissue. Synonym: Unna-Taenzer stain. (05 Mar 2000) |
| Takayama's stain | <technique> A stain containing pyridine, sodium hydrate, and dextrose; used for identification of blood stains; a drop added to a suspected blood stain results in the formation of haemochromogen crystals. (05 Mar 2000) |
| telomeric R-banding stain | <technique> A modified R-banding stain in which the telomeres become strongly stained and faint R-banding still occurs over the rest of the chromosomes; uses air-dried slides, aging for several days, and staining in hot phosphate-buffered Giemsa stain. (05 Mar 2000) |