911 Results for: "SIGMA ALDRICH MICROSCOPY"

Supplier: SIGMA ALDRICH MICROSCOPY

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

Supplier: SIGMA ALDRICH MICROSCOPY

When blood films are stained using Wright-Giemsa Stain, the white blood cell nucleus and cytoplasm take on the characteristic blue or pink coloration. The combination of purified eosin and thiazine dyes in the product eliminates inconsistent staining and yields reproducible chromogenic responses.

Supplier: SIGMA ALDRICH MICROSCOPY

1,4-Bis(methylamino)-9,10-anthraquinone 97% (dye content), Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Sulfanilic acid azochromotrop. ≥80%

Supplier: SIGMA ALDRICH MICROSCOPY

5,10,15,20-Tetrakis(4-methoxyphenyl)-21H,23H-porphine is an achiral porphyrin derivative. It forms chiral supramolecular assemblies via spontaneous symmetry breaking at the air or water interface.

Supplier: SIGMA ALDRICH MICROSCOPY

4-(Phenylazo)diphenylamine ≥97%, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Suitable for use with large and small mineralized (undecalcified) bone sections. Yields clear, hard blocks for cutting sections. Not water-soluble.

Supplier: SIGMA ALDRICH MICROSCOPY

Eosin B for microscopy, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Methyl Green is a triphenylmethane dye which is mainly used in combination with pyronin. It is suitable for the detection of DNA and RNA. Used in the Methyl Green-Pyronin methods to demonstrate DNA and RNA in tissue sections.

Supplier: SIGMA ALDRICH MICROSCOPY

Rhodamine B isothiocyanate (RBITC) is a fluorescent dye. It acts as an anterograde and retrograde marker of retinal neurons in the adult rat

Supplier: SIGMA ALDRICH MICROSCOPY

Chrysin has been used to study the effect of bioflavonoids on the inhibition of ATP synthase in Escherichia coli. It has been used to study the effect of Chrysin on eIF4E (eukaryotic translation initiation factor 4E) expression in AGS cell (human gastric carcinoma cell) line. It has been used to study the effect of chrysin on human ovarian cancer cells.

Supplier: SIGMA ALDRICH MICROSCOPY

Methyl orange (C.I. 13025) is the sodium salt of p-dimethylaminoazobenzenesulfonic acid. It is an orange-colored synthetic dye, which changes color depending on the pH of the solution. It develops a red color in acidic solution and yellow color in basic solution.

Supplier: SIGMA ALDRICH MICROSCOPY

Fast blue BB salt for microscopy, for histology, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Acridine orange is a metachromatic dye which can stain DNA, RNA and acid glycosaminoglycans. At low concentrations, it intercalates into DNA and precipitates RNA. However, at high concentrations it denatures and precipitates both RNA and DNA. Acridine orange is also used to analyse autophagy. It enters into acidic organelles in a pH-dependent manner. At neutral pH, acridine orange gives a green fluorescence and in acidic conditions, it accumulates in acidic organelles giving a bright red fluorescence.

Supplier: SIGMA ALDRICH MICROSCOPY

Wright stain, a modified romanowsky stain, is intended for differential staining of the cellular elements of blood. It comprises polychrome methylene blue and eosin B. Upon staining blood films with wright stain, the white blood cell nucleus and cytoplasm display characteristic blue or pink hues.

Supplier: SIGMA ALDRICH MICROSCOPY

Orcinol is a small-molecule natural phenol involved in the production of a dye called orcein used for the staining of cells and chromosomes. Orcinol monohydrate is usually used to prepare a colorimetric reagent known as Bial's reagent for the determination of RNA, DNA, and hexoses.

Supplier: SIGMA ALDRICH MICROSCOPY

Certified for use in Darrow′s elastic fiber stain; Orcein method for hepatitis B surface antigen.

Supplier: SIGMA ALDRICH MICROSCOPY

Basic fuchsin, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Eosin Y, also known as Eosin yellowish is a widely used xanthene dye. It is a counterstain that is used to distinguish between various connective tissue fibers and matrices, and the cytoplasm of different types of cells. Eosin in combination with hematoxylin is useful to demonstrate the general histological architecture of a tissue.

Supplier: SIGMA ALDRICH MICROSCOPY

Malonaldehyde bis(phenylimine) monohydrochloride,97%.

Supplier: SIGMA ALDRICH MICROSCOPY

8-Hydroxyjulolidine-9-carboxaldehyde 98%, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Fast Red ITR, (Azoic Diazo No. 42)

Supplier: SIGMA ALDRICH MICROSCOPY

Fast Dark Blue R Salt, (Azoic Diazo Component 51; Azoic Diazo No. 51)

Supplier: SIGMA ALDRICH MICROSCOPY

Fat Brown B, (Solvent red 3)

Supplier: SIGMA ALDRICH MICROSCOPY

Phenolphthalein bisphosphate tetrasodium salt has been used as a component of modified Baird Parker (BP) agar to determine the expression of phosphatases of Staphylococcus aureus ATCC12600. It also been used as a component of modified Tryptose phosphate/phenolphthalein/methyl green (M-TPMG) agar to detect enteroinvasive Escherichia coli (EIEC) apyrase activity.

Supplier: SIGMA ALDRICH MICROSCOPY

Example of a cyanovinylheteroaromatic for organic nonlinear optics.

Supplier: SIGMA ALDRICH MICROSCOPY

Sulforhodamine 101 is a red fluorescent dye. It is water-soluble, amphoteric rhodamine.

Supplier: SIGMA ALDRICH MICROSCOPY

8-Hydroxyjulolidine has been used in the electrochemical switching fluorescence study.

Supplier: SIGMA ALDRICH MICROSCOPY

Reactive Red 120 is a triazine-based azo dye.

Supplier: SIGMA ALDRICH MICROSCOPY

Citrate buffer, antigen retriever has been used as a heat-induced antigen retriever on formalin-fixed paraffin-embedded (FFPE) tissue sections prior to application of antibodies or DNA fluorescent in situ hybridization.