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Basic violet 1 42535 triarylmethane 8004-87-3: Methyl violet 6B: 42536 triarylmethane 84215-49-6: Methyl yellow: Butter yellow Solvent yellow 2 11020 azo 60-11-7: Methylene blue: Swiss blue Basic blue 9 Solvent blue 8 52015 thiazin 61-73-4: Methylene green: Basic green 5 52020 thiazin 2679-01-8: Milling red FR: Cloth scarlet Acid red 151 26900 ...
Unlike negative staining, positive staining uses basic dyes to color the specimen against a bright background. While chromophore is used for both negative and positive staining alike, the type of chromophore used in this technique is a positively charged ion instead of a negative one.
Acid dyes are not substantive to cellulosic fibers. Most synthetic food colors fall in this category. Examples of acid dye are Alizarine Pure Blue B, Acid red 88, etc. Basic dyes are water-soluble cationic dyes that are mainly applied to acrylic fibers, but find some use for wool and silk.
Basic dyes are cationic, i.e. contain positive charges, and thus they stain anionic structures (i.e. structures containing negative charges), such as the phosphate backbone of DNA in the cell nucleus and ribosomes. [1] "Basophils" are cells that "love" (from greek "-phil") basic dyes, for example haematoxylin, azure and methylene blue ...
Staining dyes are dyes used for staining in microbiology and histology. Subcategories. This category has the following 2 subcategories, out of 2 total. ...
Trypan Blue, a living-cell exclusion dye; Triphenyl tetrazolium chloride; Erythrosine, which is Red No. 3 in food coloring, can be used as an exclusion dye. 7-Aminoactinomycin D used e.g. in flowcytometric studies of hematopoietic stem cell viability. Other Vital Stains : Janus Green B is a basic dye and vital stain used in histology.
Adjective dyes are those dyes that require use of a mordant to bind the color to the fiber. [2] alkanet Alkanet or dyer's bugloss (Alkanna tinctoria) is a traditional plant source of red dye. [3] alum Alum (aluminum sulfate) is a naturally occurring basic mordant widely used in the ancient world. [4] añil
Counterstain, which is usually positively charged safranin or basic fuchsine, is applied last to give decolorized gram-negative bacteria a pink or red color. [3] [20] Both gram-positive bacteria and gram-negative bacteria pick up the counterstain. The counterstain, however, is unseen on gram-positive bacteria because of the darker crystal ...