1070 Résultats pour : "SIGMA ALDRICH MICROSCOPY"

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

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Aniline blue is used to stain collagen fibers in tissue sections using the Masson′s trichrome protocol for staining multiple components. Collagen is stained blue by this method. It has also been used to stain and visualize glycosylated proteins.

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(Ammoniated ruthenium oxychloride)

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Histology slides with paraffin embedded section of human intestine containing argentaffin granules. Suitable for use with Fontana-Masson stain kit (Procedure No. HT200).

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Pepsin is used for proteolytic digestion of formalin-fixed paraffin-embedded (FFPE) tissue sections prior to application of antibodies. In immunohistochemistry (IHC), most commonly used fixatives such as formalin mask tissue antigens (cellular, membrane, and nuclear) by their intrinsic crosslinking. This masking results in poor or no staining in IHC. Pepsin digestion of FFPE tissue sections improves accessibility of antibodies to tissue antigens. Ready to use pepsin reagent, antigen retriever has been used for antigen unmasking in immunohistochemistry.

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

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Thymol iodide, (4,4'-Bis(iodooxy)-2,2'-dimethyl-5,5'-bis(1-methylethyl)-1,1'-biphenyl)

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Spin trap used in conjunction with Fe²⁺ to detect NO in brain, kidney, liver, and other tissues. Simultaneous direct measurement of NO* and pO₂ has been reported. A copper chelator, it has been used to quantitate copper in biological materials by ESR and is an inhibitor of superoxide dismutase, ascorbate oxidase, and other enzymes. Also used for colorimetric determination of small quantities of arsenic. Silver diethyldithiocarbamate has been used in cell culture. Also used for colorimetric determination of small quantities of arsenic. Spin trap used in conjunction with Fe²⁺ to detect NO in brain, kidney, liver, and other tissues. Simultaneous direct measurement of NO* and pO₂ has been reported. A copper chelator, it has been used to quantitate copper in biological materials by ESR and is an inhibitor of superoxide dismutase, ascorbate oxidase, and other enzymes.

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bisBenzimide H 33258 has been used for nuclear staining in cells. bisBenzimide H 33258 is useful for staining DNA, chromosomes and nuclei. bisBenzimide H 33258 may be used for fluorescence microscopy or flow cytometry.

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Mordant Blue 9, Dye content 50 % (6-(5-Chloro-2-hydroxy-3-sulfophenylazo)-5-hydroxy-1-naphthalenesulfonic acid disodium salt; 6-(5-Chloro-2-hydroxy-4-sulfonphenylazo)-5-hydroxy-1-naphthalene-sulfonic acid sodium salt)

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Orange II sodium salt,(Certified by the Biological Stain Commission), Dye content ≥85 % (4-(2-Hydroxy-1-naphthylazo)benzenesulfonic acid sodium salt; Acid Orange 7; Acid Orange A; Orange II; Tropaeolin 000 No. 2).

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o-Cresolphthaleine, Sigma-Aldrich®

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A cell-permeable generator of singlet oxygen.

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N,N-Dimethyl-1-naphthylamine is an aromatic amine and a dye.

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5,10,15,20-Tetraphenyl-21H, 23H-porphine-p,p′,p,p′′′-tetrasulfonic acid tetrasodium hydrate is a water-soluble porphyrin. It is a negatively charged compound due to the presence of the sulfonate groups. It has been used to functionalize chemically converted graphene to form conductive graphene films of varying thickness.

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3-(2-Pyridyl)-5,6-diphenyl-1,2,4-triazine-4',4"-disulfonic acid sodium salt is also known as ferrozine.

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Mordant orange 1 is also known as Alizarin Yellow R, C.I. 14030. Mordant orange 1 is an azo dye. Azo dyes used as biological stains contain an azo group (−N=N−). It is used for colouring many different materials such as textile, leather, and plastics and for manufacturing paints and lacquers and for printings purposes as well.

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

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Naphthol yellow S has been used as a staining agent in fixed human embryonic stem cell-derived cardiomyocytes.

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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

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

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4-Amino-1,1′-azobenzene-3,4′-disulfonic acid monosodium salt, also called as acid yellow 9, belongs to the class of azo dyes.

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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.

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N-Carboxymethyl-6-(2,2-dicyanovinyl)-1,2,3,4-tetrahydroquinoline. ≥98% (HPLC) (CDCQ)

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Glutaraldehyde bis(2,4-dinitrophenylhydrazone) étalon analytique, pour analyse environnementale, Sigma-Aldrich®

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p-Xylene-bis(N-pyridinium bromide). ≥95% (TLC) (DPX)

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Ponceau S is the sodium salt of a diazo dye. It is used to make a stain for rapid reversible staining of protein bands on nitrocellulose or PVDF membranes (Western blots) and also for staining protein on cellulose acetate membranes. The stain is reversed with water washes and aids in subsequent immunological detection. The following are two common stain formulations: 0.1% Ponceau S (w/v) in 5% acetic acid 2% Ponceau S (w/v) in 30% TCA, 30% sulfosalicylic acid.

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Carmine is a cochineal product usually furnished as an aluminum and calcium salt of carminic acid. Carminic acid is used for human-medical cell diagnosis and serves the purpose of the histological investigation of sample material of human origin. It is suitable for staining nuclei in histological sections. It is utilised in various staining methods including the procedure for detection of glycogen and mucous substances (Best′s carmine), for nuclear staining, or vital staining.

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Leucocrystal Violet has been used to identify histamine-producing lactobacilli in cheese.

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