1063 Results for: "SIGMA ALDRICH MICROSCOPY"

Supplier: SIGMA ALDRICH MICROSCOPY

2-Methoxy-4-nitrophenol 97%, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Wright Stain solution, for microscopy (Eosin Methylene blue solution according to Wright; Wright's eosin methylene blue)

Supplier: SIGMA ALDRICH MICROSCOPY

Dye content - ≥85%.

Supplier: SIGMA ALDRICH MICROSCOPY

Epoxy embedding medium is generally used for biological tissues during study by electron microscopy. Usually, it consists of three components; Epon 812 resin, an anhydride hardener and an accelerator

Supplier: SIGMA ALDRICH MICROSCOPY

Fluoroshield™ with PPD (p-phenylenediamine; 1,4-phenylenediamine) is an aqueous mounting medium for preserving fluorescence of tissue and cell smears.

Supplier: SIGMA ALDRICH MICROSCOPY

A cell-permeable generator of singlet oxygen.

Supplier: SIGMA ALDRICH MICROSCOPY

Composition: Nigrosin 100 g/l, Formalin 5 ml/l in water

Supplier: SIGMA ALDRICH MICROSCOPY

Glutaraldehyde bis(2,4-dinitrophenylhydrazone) analytical standard, for environmental analysis, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

For use in procedure no. 395 for Periodic Acid-Schiff (PAS) and Silver Stain Procedure No. HT100.

Supplier: SIGMA ALDRICH MICROSCOPY

Water-soluble, negatively-charged spin trap used to monitor aqueous phase of SDS micelles.

Supplier: SIGMA ALDRICH MICROSCOPY

3-Ethoxy-4-methoxybenzaldehyde is a derivative of vanillin. 3-Ethoxy-4-methoxybenzaldehyde may be used to synthesise Compound of Designation red 10 binding (CDr10b) to investigate its role in neuroinflammatory diseases.

Supplier: SIGMA ALDRICH MICROSCOPY

Acridine Yellow G (AYG) is an organic dye with photophysical properties. It is widely used in optics, medicine and photovoltaic cells.

Supplier: SIGMA ALDRICH MICROSCOPY

It is used as diagnostic assay manufacturing, hematology, histology.

Supplier: SIGMA ALDRICH MICROSCOPY

Basacryl Red GL, Dye content 19 % (Basic Red 29)

Supplier: SIGMA ALDRICH MICROSCOPY

Readily polymerizes in aqueous solution, forming a stable free radical that inhibits protein-nucleic acid interactions. It is a potent inhibitor of ribonuclease and topoisomerase II by preventing the binding of the nucleic acid to the enzyme. It stimulates tyrosine phosphorylation processes including the Jak2/STAT5 pathway in NB2 lymphoma cells, ErbB4 in neuroblastoma cells, and MAP kinases, Shc proteins, phosphatidylinositide 3-kinase and phospholipase Cγ in PC12 cells. Inhibits apoptosis. It prevents down-regulation of Ca²⁺ -impermeable GluR2 receptors and inhibits calpain, a Ca²⁺ -activated protease that is activated during apoptosis.

Supplier: SIGMA ALDRICH MICROSCOPY

Xylenol orange tetrasodium salt is a fluorochrome acid dye with complexing and chelating properties that make it useful as an indicator in the spectrophotometric detection and assay of metal ions such as calcium, cadmium, bismuth, zinc, lead, and mercury. Its tetrasodium salt especially is used as an indicator in metal titrations. It changes color from yellow to red between pH 6.4 to 10.4. It has six potentially anionic substituents, one being sulfonate, and is anionic under staining conditions and during most laboratory applications.

Supplier: SIGMA ALDRICH MICROSCOPY

Metachromatic dye useful as a mitochondrial probe in living cells. This dye has been used to analyse mitochondria by flow cytometry, characterise multidrug resistance, and measure changes in mitochondrial mass during apoptosis in rat thymocytes.

Supplier: SIGMA ALDRICH MICROSCOPY

Fluorescent probe for hydrophobic (non-polar) regions in proteins and nucleoproteins.

Supplier: SIGMA ALDRICH MICROSCOPY

Leukocyte Alkaline Phosphatase (LAP) kits are intended for the semi-quantitative demonstration of alkaline phosphatase activity in white blood cells.

Supplier: SIGMA ALDRICH MICROSCOPY

Acridine Orange hydrochloride solution has been used to study autophagic cell death. It has also been used for the staining of chromosomes.

Supplier: SIGMA ALDRICH MICROSCOPY

Calcein blue fluorescent dye, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Fast Blue RR has been used to detect alkaline phosphatase activity.

Supplier: SIGMA ALDRICH MICROSCOPY

Formalin solution, neutral buffered, 10% is the most commonly used fixative for light microscopy. It requires a relatively short period of fixation. It is suitable for the long-term storage of tissue. Once properly fixed, the tissue should be able to withstand the subsequent stages of tissue processing or staining. 10% NBF is well suited for large throughput laboratories, and requires a relatively short period of fixation, but can also be used for the long-term storage of tissue. Formalin fixation is thought to form between the aldehydes and the proteins, creating a gel, thus retaining cellular constituents in their in vivo relationship.

Supplier: SIGMA ALDRICH MICROSCOPY

General purpose cytoplasmic counterstain. Used with hematoxylin and eosin staining.

Supplier: SIGMA ALDRICH MICROSCOPY

3,3'-Dipropylthiacarbocyanine iodide,98% (3-Propyl-2-[3-[3-propyl-2(3H)benzothiazolylidene]-1-propenyl]benzothiazolium iodide; DiSC3(3))

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

Intended for use in the Sigma Masson Trichrome Procedure, HT15.

Supplier: SIGMA ALDRICH MICROSCOPY

Erythrosin yellowish, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Serine protease that selectively cleaves Arg-Gly bonds in fibrinogen to form fibrin and fibrinopeptides A and B.