1071 Results for: "SIGMA ALDRICH MICROSCOPY"

Supplier: SIGMA ALDRICH MICROSCOPY

Alcian Blue solution has been used in the histological staining of acidic glycosaminoglycans (GAGs; mucopolysaccharides) that are carboxylated or sulfated. Sulfated glycosaminoglycans appear to be the preferred substrate for alcian blue at pH 2.5. Alcian blue has been used to stain hyaluronan (HA), a nonsulfated GAG, but the intensity of the staining of HA is affected by the method of tissue fixation used. Alcian blue staining of GAGs in tissue may be modified through the addition of an electrolyte such as magnesium chloride.

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Novec™ 7100 fluid consists of two inseparable isomers ((CF₃)₂CFCF₂OCH₃) and CF₃CF₂CF₂CF₂OCH₃) with essentially identical properties. Ideal for vapor degreasing applications as a neat (pure), azeotropic component and co-solvent parts cleaner.

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2-Hydroxy-1,4-naphthoquinone is one among the forensic reagents used for fingerprint detection. 2-Hydroxy-1,4-naphthoquinone, produced from Lawsonia inermis, is an orange dye. It belongs to the class of naphthoquinone dyes. 2-Hydroxy-1,4-naphthoquinone is used to dye hair and to color textiles. It has antibacterial, antifungal, anti-inflammatory, antiviral and antineoplastic properties. 2-Hydroxy-1,4-naphthoquinone inhibits tumor cell growth. It stimulates the production of reactive oxygen species (ROS).

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Tetramethylrhodamine methyl ester perchlorate (TMRM) is a fluorescent dye that can label mitochondria and mark embryonic stem cell/induced pluripotent stem cell-derived cardiomyocytes. It is useful for the isolation of mature cardiomyocytes.

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Saffron, Sigma-Aldrich®

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Brilliant Blue R (C.l. 42660) is a triaminotriarylmethane dye with two amino groups being benzylated and one phenylated. It is also known as brilliant indocyanine 6B and coomassie blue R250. Brilliant Blue R has been widely used for protein band detection after SDS-PAGE (sodium dodecyl sulfate-polyacrylamide gel electrophoresis).

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Auramine O, Sigma-Aldrich®

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Osmium tetroxide (OsO₄) is a heavy tetrahedral, symmetrical molecule composed of osmium, a third-row transition metal. Osmium tetroxide is both a dye, and a non-coagulant fixative agent in electron microscopy primarily used for the examination of biological tissue components in the histopathology laboratory. Specimens are postfixed with osmium testroxide to ensure preservation of the lipids.

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Crystal violet, Sigma-Aldrich®

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Orange G solution, alcoholic, for the colorimetric method according to Papanicolaou (OG-6)

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Acridine is a small cationic and planar dye that mainly binds to RNA and DNA. These dyes are strongly fluorescent. It resembles the structure of xanthene except that the heteroatom is nitrogen, not oxygen. Acridine is suitable for nucleic acid staining, particularly for cell cycle determination. Acridines are used as fluorescent materials for visualisation of biomolecules, and in laser technologies.

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Basic fuchsin, Sigma-Aldrich®

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It is used for the preparation of electrically conducting glasses. Used to make solutions for the separation of RNA from DNA by density gradient centrifugation.

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Chicago Sky Blue 6B is a counterstain for background autofluorescence in fluorescence and immunofluorescence histochemistry. It has also been used as a filling in glass pipette electrodes for electrophysiological recordings in the brain sections of rats.

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Giemsa stain is a versatile differential stain that is widely used in hematology for blood and bone marrow specimens, clinical cytology specimens, bacteriology, histological biopsies, and tumor samples. Giemsa's staining solution is composed of methylene blue, azure, and eosin. It is a major histological stain due to its unique staining of chromatin, nuclear membranes, and cytoplasmic elements. The stain is frequently used in combination with other dye solutions: May-Grünwald’s solution for Pappenheim (MGG) and Wright-Giemsa.

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Picric acid 13 g/l saturated solution in water, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Histopaque®-1119 is a sterile, endotoxin tested, ready-to-use medium. This solution consists of polysucrose and sodium diatrizoate, adjusted to a density of 1,119 g/ml and pH 8,8 to 9,0.

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Chief ingredient of Giemsa Stain.

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3,4,5,6-Tetrabromophenolsulfonephthalein, Dye content 95 %

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Citrate Solution for the preparation of a 60% citrate buffered acetone solution used as a fixative for blood smears. No dilution required. Add 30 ml citrate solution to 20 ml absolute acetone for preparation of fixative.

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Crystal Violet lactone, Dye content 97%.

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Carbazole is an aromatic heterocyclic organic molecule.

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Silver stain is an aid in distinguishing fungi, basement membrane and opportunistic organisms such as Pneumocystis carinii in tissue sections or smears.

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Density gradient medium is suitable for cell and subcellular organelle isolation, virus purification, and isolation of lipoproteins and macromolecules.

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Fast green FCF, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Substrate for the histochemical demonstration of acid and alkaline phosphatase. Substrate for the fluorometric assay of acid and alkaline phosphatases. Demonstration of acid phosphatase in paraffin embedded tissue. Cytofluorometric assay of acid phosphatase in single living cells.

Supplier: SIGMA ALDRICH MICROSCOPY

ACCUSPIN System-Histopaque-1077 products are intended for use in the isolation of lymphocytes and other mononuclear cells. The separation medium, Histopaque-1077, is a sterile-filtered, endotoxin-tested solution of polysucrose and sodium diatrizoate, adjusted to a density of 1,077 g/ml. ACCUSPIN System-HISTOPAQUE-1077 employs γ-irradiated 50 mL polypropylene centrifuge tubes specially designed with two chambers separated by a porous high-density polyethylene barrier ('frit'). Each tube is aseptically filled with 15 ml of Histopaque 1077. Each tube will separate 15 to 30 ml of anticoagulated blood.

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Metachromatic dye

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For use with Osteo-bed bone embedding kit. Solvent for removal of plastic from sections prior to rehydration and staining. Most histochemical and immunohistochemistry staining protocols require the removal of methyl methacrylate (MMA) and rehydration of mounted sections for improved stain penetration and greater contrast.

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Proflavine is a small, amphipathic, acridine-derived fluorescent dye.Proflavine hemisulfate is used as a rapid stain for cytological studies of biological specimens. It stains cytoplasmic structures and nuclei. Proflavine has the capability to intercalate double stranded DNA.