1073 Resultater for: "SIGMA ALDRICH MICROSCOPY"

Supplier: SIGMA ALDRICH MICROSCOPY

Produces highly insoluble dark green stain in histochemical studies.

Supplier: SIGMA ALDRICH MICROSCOPY

Chlorazol Black has been used to monitor the infection of mycorrhizal Allium porrum in plant roots. It has also been used for the staining of copepods.

Supplier: SIGMA ALDRICH MICROSCOPY

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

Supplier: SIGMA ALDRICH MICROSCOPY

3-Indolyl-ß-D-galactopyranoside, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Biotinylation reagent

Supplier: SIGMA ALDRICH MICROSCOPY

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

Supplier: SIGMA ALDRICH MICROSCOPY

1-Methoxy-5-methylphenazinium methyl sulfate (MPMS) is a photochemically stable electron-transport mediator between NAD(P)H and tetrazolium dyes. The reduced form of MPMS converts tetrazolium salt to purple precipitate formazan. It is a very stable and non-enzymic electron carrier that mediates electron transfer by dehydrogenases in vitro to various electron acceptors such as tetrazolium dyes or the electrode of an enzymic electric cell.

Supplier: SIGMA ALDRICH MICROSCOPY

As a direct dye, Direct Yellow 27 is an acid dye with large molecules that will bind to cellulose fibers directly. It is mono azo dye with good light fastness.

Supplier: SIGMA ALDRICH MICROSCOPY

2-(3-Nitrophenylsulfonyl)ethanol,97%

Supplier: SIGMA ALDRICH MICROSCOPY

3-Ethyl-2-methylbenzothiazolium iodide, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

The combination of azure A and silver staining is used for the quantification of glycosaminoglycans in agarose gels. It is also used for the staining of chromosomes in the nucleus. Azure A is a main component of the azure B/polychromed methylene blue-eosin stains family, also referred to as the Romanowsky stain. Azure A is a basic cationic dye.

Supplier: SIGMA ALDRICH MICROSCOPY

Tetrazolium Violet is a monotetrazolium salt which forms water-insoluble formazans. These salts are mainly used as indicators of extracellular redox activity and cell redox potential. Tetrazolium violet is positively charged and cell-permeable.

Supplier: SIGMA ALDRICH MICROSCOPY

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

Supplier: SIGMA ALDRICH MICROSCOPY

3-Nitrophthalimid 97%, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

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

Supplier: SIGMA ALDRICH MICROSCOPY

1,2,3,4-Tetrahydro-2,2,4,7-tetramethylquinoline,97%

Supplier: SIGMA ALDRICH MICROSCOPY

Osmium tetroxide is also referred to as osmium and is mainly used as a secondary fixative of tissues. The molecule reacts with lipid moieties and is responsible for the oxidation of unsaturated bonds of fatty acids. This reaction adds density and contrast to biological samples. In normal tissues, presence of osmium results in intense black staining which can be viewed by normal eye. In addition, it can be used as a mordant (a molecule which combines with stain or dye at later stages) in electron microscopy, thereby enhancing lead staining.

Supplier: SIGMA ALDRICH MICROSCOPY

S-Ethylisothiouroniumbromid, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

1,3-Diphenylacetone-p-toluenesulphonylhydrazone ≥98%, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Gentian violet is used in the Gram staining for distinguishing between gram-positive and gram-negative organisms.

Supplier: SIGMA ALDRICH MICROSCOPY

Crystal Ponceau 6R has been used in the MSB (martius yellow–crystal scarlet–methyl blue) staining procedure for the staining of collagen fibers and erythrocytes.

Supplier: SIGMA ALDRICH MICROSCOPY

Loefflers Methylene Blue stain is used for the identification of diphteria bacilli, since it differentiates the deeply staining metachromatic granules from the pale blue-staining cytoplasm.

Supplier: SIGMA ALDRICH MICROSCOPY

Kit is used to demonstrate acid phosphatase and tartrate resistant acid phosphatase (TRAP) in blood, bone marrow and tissue touch preparations.

Supplier: SIGMA ALDRICH MICROSCOPY

Phenol Red sodium salt is widely used as a pH indicator. At a pH of 6,4 and below, phenol red solution will have a yellow colour. At a pH of 8,2 and above, it will have a red colour. It is commonly used in culture media to detect neutral to acidic pH changes.

Supplier: SIGMA ALDRICH MICROSCOPY

Naphthol AS-BI Phosphoric acid solution for use in the Sigma Acid Phosphatase (TRAP) Procedure, Kit 387A.

Supplier: SIGMA ALDRICH MICROSCOPY

Rose Bengal has been used to evaluate acrosome integrity. It has also been used to initiate photothrombotic occlusion in blood.

Supplier: SIGMA ALDRICH MICROSCOPY

2,4-Dimethoxytoluene, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

N,N-Diethyl-p-phenylenediamine oxalate salt, (4-Amino-N,N-diethylaniline oxalate salt)

Supplier: SIGMA ALDRICH MICROSCOPY

Quinaldine red has been used as a fluorescent probe for α1-acid glycoprotein (AAG). It is also used a diagnostic assay manufacturing, hematology, histology.

Supplier: SIGMA ALDRICH MICROSCOPY

Chromeazurol S has been used to evaluate siderophore production by rhizosphere bacteria.