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An electrophoretic color marker is a chemical used to monitor the progress of agarose gel electrophoresis and polyacrylamide gel electrophoresis (PAGE) since DNA, RNA, and most proteins are colourless. [1] The color markers are made up of a mixture of dyes that migrate through the gel matrix alongside the sample of interest. They are typically ...
GelGreen is an intercalating nucleic acid stain used in molecular genetics for agarose gel DNA electrophoresis. GelGreen consists of two acridine orange subunits that are bridged by a linear oxygenated spacer. [1] [2] Its fluorophore, and therefore its optical properties, are essentially identical to those of other N-alkylacridinium orange dyes.
Orange G can be used as an electrophoretic color marker to monitor the process of agarose gel electrophoresis, running approximately at the size of a 50 Base pair (bp) DNA molecule, and polyacrylamide gel electrophoresis. Bromophenol blue and xylene cyanol can also be used for this purpose. (However, the apparent "size" of all these dyes varies ...
EtBr allows one to easily visualize DNA or RNA on a gel as EtBr fluoresces an orange color under UV light. [23] Ethidium bromide binds nucleic acid chains through the process of Intercalation. [3] While Ethidium bromide is a popular stain it is important to exercise caution when using EtBr as it is a known carcinogen.
Ethidium bromide (or homidium bromide, [2] chloride salt homidium chloride) [3] [4] is an intercalating agent commonly used as a fluorescent tag (nucleic acid stain) in molecular biology laboratories for techniques such as agarose gel electrophoresis. It is commonly abbreviated as EtBr, which is also an abbreviation for bromoethane.
Bismarck brown Y stains acid mucins to yellow color. It also stains mast cell granules brown. [3] It can be used with live cells.It is also used to stain cartilage in bone specimens, as one of Kasten's Schiff-type reagents in the periodic acid-Schiff stain to stain cellulose, and in Feulgen stain to stain DNA.
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Ponceau S, Acid Red 112, or C.I. 27195 (systematic name: 3-hydroxy-4-(2-sulfo-4-[4-sulfophenylazo]phenylazo)-2,7-naphthalenedisulfonic acid sodium salt [1]) is a sodium salt of a diazo dye of a light red color, that may be used to prepare a stain for rapid reversible detection of protein bands on nitrocellulose or polyvinylidene fluoride (PVDF) membranes (western blotting), as well as on ...
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