1077 Results for: "SIGMA ALDRICH MICROSCOPY"

Supplier: SIGMA ALDRICH MICROSCOPY

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

Supplier: SIGMA ALDRICH MICROSCOPY

Gram’s crystal violet solution, also known as gentian violet or hexamethyl pararosaniline, is a basic, cationic, acidotropic aminoarylmethane dye. It is a hexa-N-methylated triaminotriphenylmethane with a moderately sized lipophilic cation and a slightly nonplanar conjugated system. It is used in bacteriology as the primary stain in Gram staining to differentiate Gram-positive and Gram-negative bacteria. It is known to possess antibacterial and antifungal properties.

Supplier: SIGMA ALDRICH MICROSCOPY

Protargol silver impregnation and neuronal selectivity for light and electron microscopic observations.

Supplier: SIGMA ALDRICH MICROSCOPY

3-Nitrophthalimide 97%, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Bromocresol purple sodium salt, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Trimethylchlorosilane: hexamethyldisilazane: pyridine (1:3:9) reagent for preparing TMS derivatives of amino acids, sugars, etc.

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

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

2',7'-Dichlorofluorescein, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Dihydrorhodamine 123 has been used for the detection of free intracellular radicals or ROS (reactive oxygen species).

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

Sudan III, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

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

Supplier: SIGMA ALDRICH MICROSCOPY

When blood films are stained using Giemsa Stain, the nucleus and cytoplasm of white blood cells take on characteristic blue or pink coloration. The use of purified eosin and thiazine dyes minimizes lot-to-lot variation.

Supplier: SIGMA ALDRICH MICROSCOPY

Papanicolaou stain imparts a characteristic range of coloration to exfoliative cells of vaginal, cervical, prostatic and other body secretions, allowing critical examination of nuclei and cytoplasmic components.

Supplier: SIGMA ALDRICH MICROSCOPY

Leucomalachite green has been used as a reagent in presumptive tests which are used to detect invisible blood stains.

Supplier: SIGMA ALDRICH MICROSCOPY

Bathocuproin sulphonate disodium salt hydrate for spectrophotometric determination of Cu and Fe, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Carmine is a red compound and is generally used with aluminum, iron and other metal salts to enhance its activity. During smear preparation, it is required for chromatin staining in fresh material. In presence of aluminum chloride, it is used for the staining of glycogen.

Supplier: SIGMA ALDRICH MICROSCOPY

Yellow counterstain suitable for a wide range of histological staining procedures.

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

Cresyl Violet perchlorate is suitable as a laser dye.

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

4,7-Dihydroxy-1,10-phenanthroline, Dye content ≥30 % (1,10-Phenanthroline-4,7-diol)

Supplier: SIGMA ALDRICH MICROSCOPY

Methyl green zinc chloride salt, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

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

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

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

Supplier: SIGMA ALDRICH MICROSCOPY

Popular hematology stain used for differentially staining the cellular elements of blood. For dip, rack, and batch staining techniques.

Supplier: SIGMA ALDRICH MICROSCOPY

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

Supplier: SIGMA ALDRICH MICROSCOPY

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