1073 Results for: "SIGMA ALDRICH MICROSCOPY"

Supplier: SIGMA ALDRICH MICROSCOPY

Schiff base which can be converted to amino alcohols and amino esters.

Supplier: SIGMA ALDRICH MICROSCOPY

Solvent Blue 38 is a phthalocyanine stain, used for staining myelin, neurons and glial fibres.

Supplier: SIGMA ALDRICH MICROSCOPY

Rhodamine 123 is useful as a laser dye and to have selective cell growth effects. It has also been used to measure mitochondrial membrane potential.

Supplier: SIGMA ALDRICH MICROSCOPY

Sudan III, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Certified for Giemsa stain for blood films and for the Wolbach′s Giemsa method for paraffin sections. Giemsa is a versatile polychromatic stain, which is suitable for staining a diverse range of specimens. It is a buffered thiazine-eosinate solution designed to provide coloration of blood cells. Giemsa’s stain is frequently used for diagnostic purposes in hematology to differentiate the nuclear and cytoplasmic morphology of platelets, RBCs, WBCs, and parasites. It is frequently used in combination with other dye solutions as May-Grunwald’s solution for Pappenheim (MGG) and Wright-Giemsa. The Giemsa stain was adapted to histology due to its unique staining of chromatin, nuclear membranes, and cytoplasmic elements. Giemsa′s staining solution is composed of methylene blue, azure, and eosin.

Supplier: SIGMA ALDRICH MICROSCOPY

Rhodamine 6G has been used as a leukocyte marker to study the interaction between leukocytes and the vascular endothelium. It has also been used to label platelets.

Supplier: SIGMA ALDRICH MICROSCOPY

Azure A eosinate, powder, crystals or chunks, Sigma-Aldrich®

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

Acridine Orange base (3,6-Bis(dimethylamino)acridine) is a cell-permeable fluorescent dye that binds to nucleic acids. It emits green fluorescence when bound to dsDNA and red fluorescence when bound to ssDNA or RNA. It is also known to be a positive solvatochromic dye. Acridine orange has also been used as a lysosomal dye. It is widely used to detect the presence of homeopathic potencies.

Supplier: SIGMA ALDRICH MICROSCOPY

Pyronine G, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

4-(4-Nitrophenylazo) resorcinol, also known as azo violet or magneson I, is a red colored powder. It functions as a spot test reagent and forms blue lake on reaction with Mg(OH)₂ in alkaline solution. It is mainly used for determining the presence of magnesium in the solution. 4-(4-Nitrophenylazo)resorcinol is a pH indicator.

Supplier: SIGMA ALDRICH MICROSCOPY

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

Supplier: SIGMA ALDRICH MICROSCOPY

Used as a red nuclear counterstain in various cytochemical procedures.

Supplier: SIGMA ALDRICH MICROSCOPY

Erythrosin B dinatriumsalt, 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

Acid Blue 25, Dye content 45 %

Supplier: SIGMA ALDRICH MICROSCOPY

2-(3-Nitrophenylsulfonyl)ethanol,97%

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

Redox indicator. Blue fluorescence until oxidized to ethidium. Dihydroethidium has been used as a superoxide probe in bovine pulmonary artery endothelial cell (BPAEC).

Supplier: SIGMA ALDRICH MICROSCOPY

Bromocresolpurpur, natriumsalt, 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

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

Supplier: SIGMA ALDRICH MICROSCOPY

Crystal violet has been used to determine cell viability. It has been used in the staining of cells for the quantification of cellular migration.

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

o-Tolidine is a diacidic dye which is sparingly soluble in water and easily soluble in ether and alcohol. On exposure to chlorine or bromine vapors, it forms an intense blue color. This forms the basis for detection of chlorine, nitrates and hydrogen peroxide in air or water. It turns yellow on reacting with free chlorine. o-Tolidine easily forms acid salts.

Supplier: SIGMA ALDRICH MICROSCOPY

Intended for the histochemical demonstration of neutrophil granules in blood or bone marrow films.

Supplier: SIGMA ALDRICH MICROSCOPY

Spirochetes TISSUE-TROL™ Control Slides from rabbit testicle tissue containing spirochetes (Treponema pallidum), TISSUE-TROL™

Supplier: SIGMA ALDRICH MICROSCOPY

Histology slides with paraffin embedded section of human skin containing melanin.

Supplier: SIGMA ALDRICH MICROSCOPY

to be used with SIAL 78711 RenLam M-1 (Epoxy Embedding Medium)

Supplier: SIGMA ALDRICH MICROSCOPY

To be used with SIAL 69571 Ren HY 956 (Hardener for Epoxy Embedding Medium)