1070 Ergebnisse für: "SIGMA ALDRICH MICROSCOPY"

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Percoll® is a classic medium for density gradient centrifugation of cells, viruses, and subcellular particles. It consists of colloidal silica particles of 15 – 30 nm diameter (23% w/w in water), coated with polyvinylpyrrolidone (PVP).

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

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4-(2-[6-(Dioctylamino)-2-naphthalenyl]ethenyl)-1-(3-sulfopropyl)pyridinium inner salt. ≥95% (HPLC), solid (Di-8-ANEPPS)

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Fluoroshield™ is an aqueous mounting medium for preserving fluorescence of tissue and cell smears.

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Certified for use as a constituent of MacNeal′s tetrachrome stain for blood.

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Spirochetes TISSUE-TROL™ Control Slides from rabbit testicle tissue containing spirochetes (Treponema pallidum), TISSUE-TROL™

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Histology slides with paraffin embedded section of human skin containing melanin.

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Crystal violet has been used to determine cell viability. It has been used in the staining of cells for the quantification of cellular migration.

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2-Amino-5,6-dimethylbenzimidazol, Sigma-Aldrich®

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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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Fluoresceinamine, isomer I has been used as a probe in immobilization and is used to determine its ability to potentiate the antiviral activity of poly r (A-U).

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Hematoxylin has been used for staining gastric cancer tissues, myocardial tissue, heart sections and ovarian nuclei.

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Phloroglucinol (phlo) is a phenol derivative that shows a cytoprotective effect from oxidative damage by enhancing the activity of cellular catalase. It can also be used to prepare synthetic analogs of A-type proanthocyanidins (PACs) such as 2,8-dioxabicyclo nonane derivatives by reacting with the corresponding flavylium salts. Phlo can react with benzaldehyde derivatives to form phloroglucinol-based microporous polymeric organic frameworks (phlo-POF) with potential applications in ion exchange and gas adsorption. Phloroglucinol is an antispasmodic and a derivative of phenol.

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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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Trimethylchlorosilane: hexamethyldisilazane: pyridine (1:3:9) reagent for preparing TMS derivatives of amino acids, sugars, etc.

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This material has a structure similar to Granular Blue (CAS No. 71431-29-3). It has been referred to in some literature as Granular Blue, a fluorescent neuronal tracer.

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Direct Red 80 (C.I. 35780) is an extremely hydrophilic, very large tetrakisazo hexasulfonated anionic dye that has a large, planar aromatic system.It is also known as Sirius red F3B, chlorantine fast red 7BLN or 5BRL, durazol brilliant red B, pontamine fast red 7BNL, and sirius fast red.

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Fast Red Violet LB Salt has been used for the detection of tartrate-resistant acid phosphatase (TRAP) in tissue sections.

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2-Aminobiphenyl is a substrate for UGTs (UDP-glucuronosyltransferases), including UGT1A4, UGT2B13 and UGT2B16.

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Sulfochlorophenol S sodium calcium salt, (2,7-Bis(2-hydroxy-3-sulfo-5-chlorophenylazo)-1,8-di-hydroxynaphthalene-3,6-disulfonic acid)

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Acridine Orange base (3,6-Bis(dimethylamino)acridine) is a cell-permeable fluorescent dye that binds to nucleic acids. It emits green fluorescence when bound to dsDNA and red fluorescence when bound to ssDNA or RNA. It is also known to be a positive solvatochromic dye. Acridine orange has also been used as a lysosomal dye. It is widely used to detect the presence of homeopathic potencies.

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o-Tolidine is a diacidic dye which is sparingly soluble in water and easily soluble in ether and alcohol. On exposure to chlorine or bromine vapors, it forms an intense blue color. This forms the basis for detection of chlorine, nitrates and hydrogen peroxide in air or water. It turns yellow on reacting with free chlorine. o-Tolidine easily forms acid salts.

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Redox indicator. Blue fluorescence until oxidized to ethidium. Dihydroethidium has been used as a superoxide probe in bovine pulmonary artery endothelial cell (BPAEC).

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

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

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Cell impermeable fluorescent probe for Ca2+.

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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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N-(4-Amino-2,5-diethoxyphenyl)benzamide, (4'-Amino-2',5'-diethoxybenzanilide; Azoic Diazo No. 20; Fast blue BB)

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4,5-Methylenedioxy-1,2-phenylenediamine dihydrochloride is a fluorescence tag for α keto acids. It is also required for the derivatisation of sialic acids in presence of dilute sulfuric acid. The method allows determination of sialic acids.