1073 Results for: "SIGMA ALDRICH MICROSCOPY"

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In living mice, acriflavine hydrochloride has been used in the confocal laser endomicroscopy to check the crypt structure in mucosa. It has also been used in Neurospora strain selection by checking the acriflavine resistance.

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1-Methoxy-5-methylphenazinium methyl sulfate (MPMS) is a photochemically stable electron-transport mediator between NAD(P)H and tetrazolium dyes. The reduced form of MPMS converts tetrazolium salt to purple precipitate formazan. It is a very stable and non-enzymic electron carrier that mediates electron transfer by dehydrogenases in vitro to various electron acceptors such as tetrazolium dyes or the electrode of an enzymic electric cell.

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Ethyl 4'-hydroxy-4-biphenylcarboxylate,98%

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N,N-Diethyl-p-phenylenediamine oxalate salt, (4-Amino-N,N-diethylaniline oxalate salt)

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Osmium tetroxide is also referred to as osmium and is mainly used as a secondary fixative of tissues. The molecule reacts with lipid moieties and is responsible for the oxidation of unsaturated bonds of fatty acids. This reaction adds density and contrast to biological samples. In normal tissues, presence of osmium results in intense black staining which can be viewed by normal eye. In addition, it can be used as a mordant (a molecule which combines with stain or dye at later stages) in electron microscopy, thereby enhancing lead staining.

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Useful for staining DNA, chromosomes and nuclei. May be used for fluorescence microscopy or flow cytometry.
Excitation max. = 346 nm
Emission max. = 460 nm
bisBenzimide H 33342 trihydrochloride has been used for the staining of viable and apoptotic.

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Picric acid (2,4,6-trinitrophenol) has antibacterial as well as antifungal properties. It stains the fungal spores and hyphae a pale to dark yellow color.

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Methyl violet for microscopy (Bact., Bot., Hist.), indicator (pH 0.1 - 2.0), mixture of polymethylated pararosaniline hydrochlorides.

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Gram’s crystal violet solution, also known as gentian violet or hexamethyl pararosaniline, is a basic, cationic, acidotropic aminoarylmethane dye. It is a hexa-N-methylated triaminotriphenylmethane with a moderately sized lipophilic cation and a slightly nonplanar conjugated system. It is used in bacteriology as the primary stain in Gram staining to differentiate Gram-positive and Gram-negative bacteria. It is known to possess antibacterial and antifungal properties.

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Solvent Blue 38 is a phthalocyanine stain, used for staining myelin, neurons and glial fibres.

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Rhodamine 123 is useful as a laser dye and to have selective cell growth effects. It has also been used to measure mitochondrial membrane potential.

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Carmine is a red compound and is generally used with aluminum, iron and other metal salts to enhance its activity. During smear preparation, it is required for chromatin staining in fresh material. In presence of aluminum chloride, it is used for the staining of glycogen.

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Nile Blue A has been used for the staining of eggs before transferring them to the hosts. It has been used for the staining of cells.

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General purpose nuclear stain, progressive type. Used with hematoxylin and eosin staining.

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Rhodamine 6G has been used as a leukocyte marker to study the interaction between leukocytes and the vascular endothelium. It has also been used to label platelets.

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Utilizes New Methylene Blue for the identification of reticulocytes in blood films.

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Popular hematology stain used for differentially staining the cellular elements of blood. For dip, rack, and batch staining techniques.

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As a direct dye, Direct Yellow 27 is an acid dye with large molecules that will bind to cellulose fibers directly. It is mono azo dye with good light fastness.

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1,3-Diphenylacetone-p-toluenesulphonylhydrazone ≥98%, Sigma-Aldrich®

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Acetone 2,4-Dinitrophenylhydrazone 99% analytical standard, for environmental analysis, Sigma-Aldrich®

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7-Diethylamino-3-(4-maleimidophenyl)-4-methylcoumarin has been used: as a nontoxic substitute for conjugation with antibody(93) to aid fluorescent detection of Coenzyme A (CoA-SH) in human N-myristoyltransferases assay (94)

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Gentian violet is used in the Gram staining for distinguishing between gram-positive and gram-negative organisms.

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Intended for the histochemical demonstration of neutrophil granules in blood or bone marrow films.

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Nile blue chloride has been used to stain non-aqueous phase in fluorescence microscopy studies.

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Bathocuproin sulphonate disodium salt hydrate for spectrophotometric determination of Cu and Fe, Sigma-Aldrich®

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Acid Blue 80, Dye content 40 %

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Used as a red nuclear counterstain in various cytochemical procedures.

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Erythrosin B disodium salt, Sigma-Aldrich®

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Certified for Giemsa stain for blood films and for the Wolbach′s Giemsa method for paraffin sections. Giemsa is a versatile polychromatic stain, which is suitable for staining a diverse range of specimens. It is a buffered thiazine-eosinate solution designed to provide coloration of blood cells. Giemsa’s stain is frequently used for diagnostic purposes in hematology to differentiate the nuclear and cytoplasmic morphology of platelets, RBCs, WBCs, and parasites. It is frequently used in combination with other dye solutions as May-Grunwald’s solution for Pappenheim (MGG) and Wright-Giemsa. The Giemsa stain was adapted to histology due to its unique staining of chromatin, nuclear membranes, and cytoplasmic elements. Giemsa′s staining solution is composed of methylene blue, azure, and eosin.

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Protargol silver impregnation and neuronal selectivity for light and electron microscopic observations.