1070 Résultats pour : "SIGMA ALDRICH MICROSCOPY"

Supplier: SIGMA ALDRICH MICROSCOPY

Nuclear counterstain. Included as a component in the Sigma Fetal Hemoglobin Procedure 285.

Supplier: SIGMA ALDRICH MICROSCOPY

Intended for use in Sigma Procedure 387 for the demonstration of Acid Phosphatase (TRAP).

Supplier: SIGMA ALDRICH MICROSCOPY

Methyl Purple,in H2O (Methyl Purple indicator solution)

Supplier: SIGMA ALDRICH MICROSCOPY

Azure B tetrafluoroborate, Dye content 95 %

Supplier: SIGMA ALDRICH MICROSCOPY

DASPEI has been used for the labelling of hair cells in larval zebrafish. It accumulates in the mitochondria and has a large fluorescence stokes shift. It is also used for the relative measurements of mitochondrial membrane potential. Suitable as a mitochondrial stain in live cells. Storage temperature is 2 to 8 °C.

Supplier: SIGMA ALDRICH MICROSCOPY

Ethyl orange sodium salt 90% (teneur en colorant), Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Certified for use in the Stoval and Black method for demonstrating Negri bodies in the central nervous system of rabid animals.

Supplier: SIGMA ALDRICH MICROSCOPY

Reagent for aluminium. Aurintricarboxylic acid readily polymerises 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 C in PC12 cells. Aurintricarboxylic acid inhibits apoptosis in many cell types. Its neuroprotective effect, perhaps due to its ability to prevent down-regulation of Ca²⁺ impermeable GluR2 receptors or to its ability to inhibit calpain, a Ca²⁺-activated protease that is activated during apoptosis.

Supplier: SIGMA ALDRICH MICROSCOPY

Acide 8-anilinonaphtalène-1-sulfonique, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Most mucins contain serveral glycoproteins and can therefore be detected by stains for carbohydrates. Best carmine stain is specifically used for glycogens. Mucicarmine is an empirical stain. When applied for fungal staining, it stains the spores and hyphae as pale to dark red.

Supplier: SIGMA ALDRICH MICROSCOPY

Solvent Green 3, also known as Quinizarine Green SS (CI 61565) is an anthraquinone derivative. It is a green dye that imparts its colour to materials. Solvent Green 3 is made by condensing either leucoquinizarin or a mixture of leucoquinizarin and quinizarin with two moles of p-toluidine in the presence of boric acid.

Supplier: SIGMA ALDRICH MICROSCOPY

DPX Mountant for histology has been used as a slide mountant to fix sections.

Supplier: SIGMA ALDRICH MICROSCOPY

Differentiation solution comprises acidified ethanol or isopropanol that is used to decolourise hematoxylin stain. The duration of exposure to the solution determines the degree of decolourisation. Differentiation is a crucial step in hematoxylin-eosin staining to achieve the proper colour contrast necessary for visualisation, by selectively removing excess hematoxylin from the tissue section and leaving behind the desired staining intensity.

Supplier: SIGMA ALDRICH MICROSCOPY

Noir du Soudan B, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

Histopaque®-1119 is a sterile, endotoxin tested, ready-to-use medium. This solution consists of polysucrose and sodium diatrizoate, adjusted to a density of 1,119 g/ml and pH 8,8 to 9,0.

Supplier: SIGMA ALDRICH MICROSCOPY

Chicago Sky Blue 6B is a counterstain for background autofluorescence in fluorescence and immunofluorescence histochemistry. It has also been used as a filling in glass pipette electrodes for electrophysiological recordings in the brain sections of rats.

Supplier: SIGMA ALDRICH MICROSCOPY

Oil Red EGN has been used to stain lipid droplets accumulated in cell during adipogenesis.

Supplier: SIGMA ALDRICH MICROSCOPY

Sudan IV has been used to in en-face staining of aorta, stains the lipid rich plaques. It has also been used to stain lipids atherosclerotic lesions of mice.

Supplier: SIGMA ALDRICH MICROSCOPY

SynaptoRed™ C2 has been used for propidium iodide (PI) blockage.

Supplier: SIGMA ALDRICH MICROSCOPY

10-(2',4'-Dinitrophenylazo)-9-phenanthrol, (DNAF)

Supplier: SIGMA ALDRICH MICROSCOPY

Trypan Blue (C.l. 23850) is a large, tetrasulfonated anionic, hydrophilic dye. It is also known as diamine blue 3B. Trypan blue has been used as a dye in trypan blue exclusion assay/cell viability assay to detect dead cells.

Supplier: SIGMA ALDRICH MICROSCOPY

1-Aminoanthraquinone has the ability to increase the solubility of derivatives of anthraquinone in supercritical carbon dioxide.

Supplier: SIGMA ALDRICH MICROSCOPY

Phycobiliprotein exhibiting exceptional absorbance and fluorescence characteristics due to a lack of susceptibility to internal and external fluorescence quenching. Ideal for highly sensitive studies in flow cytometry and immunoassays.

Supplier: SIGMA ALDRICH MICROSCOPY

Acridine is a small cationic and planar dye that mainly binds to RNA and DNA. These dyes are strongly fluorescent. It resembles the structure of xanthene except that the heteroatom is nitrogen, not oxygen. Acridine is suitable for nucleic acid staining, particularly for cell cycle determination. Acridines are used as fluorescent materials for visualisation of biomolecules, and in laser technologies.

Supplier: SIGMA ALDRICH MICROSCOPY

ANSA (8-Anilino-1-naphthalenesulfonic acid) is a hydrophobic polarity sensitive fluorescent dye useful as a site probe to detect conformational changes in cell and micelle membranes and molecules such as proteins. ANSA is also used as a fluorescent probe for the estimation of the critical micelle concentration (CMC) of surfactants.

Supplier: SIGMA ALDRICH MICROSCOPY

DNA, RNA stain with advantageous spectral properties for cytometric applications.

Supplier: SIGMA ALDRICH MICROSCOPY

4-(2-(6-(Dibutylamino)-2-naphthalenyl)ethenyl)-1-(3-sulfopropyl)pyridinium hydroxide inner salt has been used as a voltage sensitive dye in cardiac cells.

Supplier: SIGMA ALDRICH MICROSCOPY

Nigrosin,certified by the Biological Stain Commission (Acid black 2; Nigrosin water soluble).

Supplier: SIGMA ALDRICH MICROSCOPY

Basic fuchsin is a triaminotriphenylmethane dye that is widely used to stain muscle, mitochondria, and collagen. It is generally a mixture of pararosaniline (C.I. 42500), rosaniline (C.I. 42510), magenta II and new fuchsine (CI 42520).

Supplier: SIGMA ALDRICH MICROSCOPY

Fuchsine basique, Sigma-Aldrich®