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It is used as a food coloring, [11] printing ink, [12] biological stain, [13] dental plaque disclosing agent, [14] radiopaque medium, [13] sensitizer for orthochromatic photographic films, and visible light photoredox catalyst. [15] Erythrosine is commonly used in sweets, such as some candies, ice pops and cherries, and in cake-decorating gels ...
A Ziehl–Neelsen stain is an acid-fast stain used to stain species of Mycobacterium tuberculosis that do not stain with the standard laboratory staining procedures such as Gram staining. This stain is performed through the use of both red coloured carbol fuchsin that stains the bacteria and a counter stain such as methylene blue .
Gram-positive cells have a thick layer of peptidoglycan in the cell wall that retains the primary stain, crystal violet. Gram-negative cells have a thinner peptidoglycan layer that allows the crystal violet to wash out on addition of ethanol. They are stained pink or red by the counterstain, [3] commonly safranin or fuchsine.
Common food products that can contain Red Dye No. 3 include: Sprinkles. Icing. Baking mixes. Cereals. Berry- and cherry-flavored candy. Strawberry milk. Peppermint candies. Soda. Fruit cocktail ...
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.
A "vital dye" or stain is a dye capable of penetrating living cells or tissues without causing immediate visible degenerative changes. [26] Such dyes are useful in medical and pathological fields in order to selectively color certain structures (such as cells) in order to distinguish them from surrounding tissue and thus make them more visible ...
Just like baking soda and vinegar simulate a volcanic eruption, baking soda interacts with acidic ingredients in doughs and batters to create bubbles of CO 2. But instead of spilling out of a ...
Haematoxylin alone is not an effective stain, but when oxidized to hematein, and combined with a mordant, stains chromatin in cell nuclei dark blue to black. [ 1 ] [ 7 ] [ 25 ] [ 10 ] The colour and specificity of haematoxylin stains are controlled by the chemical nature, and amount, of the mordant used, and the pH of the staining solution ...