1070 Résultats pour : "SIGMA ALDRICH MICROSCOPY"

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1-(Méthylamino)anthraquinone 98%, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

For use in Sigma Procedure 91C for the demonstration of specific esterase in blood, bone marrow films, tissue touch preparations, cytocentrifuge preparations and paraffin tissue sections.

Supplier: SIGMA ALDRICH MICROSCOPY

Reagent used in the 91A procedure for the demonstration of non-specific esterase activity in leukocytes.

Supplier: SIGMA ALDRICH MICROSCOPY

Alginic acid is a high molecular weight linear polymer isolated from seaweed. It is a linear β-1→4-linked polymer of n-mannuronic and L-guluronic acid. It is an acid polysaccharide present in the extracellular matrix of brown algae.

Supplier: SIGMA ALDRICH MICROSCOPY

2-Sulphobenzoic cyclic anhydride ≥90%, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

4-Phenylazophenol is a polymethacrylates containing polar azo dye. 4-Phenylazophenol (4PP) has been used to study mineralisation by P. chrysosporium under nitrogen-sufficient and nitrogen-limiting culture conditions.

Supplier: SIGMA ALDRICH MICROSCOPY

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

Supplier: SIGMA ALDRICH MICROSCOPY

Acridine Yellow G (AYG) is an organic dye with photophysical properties. It is widely used in optics, medicine and photovoltaic cells.

Supplier: SIGMA ALDRICH MICROSCOPY

Useful standard for elemental analysis.

Supplier: SIGMA ALDRICH MICROSCOPY

Amaranth has been used as a dye for the microscopic visualization of crop contraction in blowflies. It has been used in the electrophoresis gel to track the migration front of the electrode buffer.

Supplier: SIGMA ALDRICH MICROSCOPY

Azure A is a basic cationic dye. 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. It is a main component of the azure B/polychromed methylene blue – eosin stains family, also referred to as the Romanowsky stain.

Supplier: SIGMA ALDRICH MICROSCOPY

Jenner's stain, suitable for blood stain (Eosin-Methylene Blue)

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Suitable for use as a protease substrate.

Supplier: SIGMA ALDRICH MICROSCOPY

Acid Fuchsin calcium salt,certified by the Biological Stain Commission, Dye content ≥60 % (Acid Magenta; Acid Rubin; Fuchsin S, SS, SS, ST, or SIII; Rubin S)

Supplier: SIGMA ALDRICH MICROSCOPY

Gill No. 1 formulation is used as a progressive cytology stain. Used with hematoxylin and eosin staining.

Supplier: SIGMA ALDRICH MICROSCOPY

Gill formulation No. 3 can be used for cytology and/or histology as a progressive or regressive stain depending on length of staining time.

Supplier: SIGMA ALDRICH MICROSCOPY

Used in procedure HT100 for the toning of sections stained with the silver methanamine procedure.

Supplier: SIGMA ALDRICH MICROSCOPY

General purpose cytoplasmic counterstain. Used with hematoxylin and eosin staining.

Supplier: SIGMA ALDRICH MICROSCOPY

Orange G (certified), 0.3% and phosphotungstic acid, 0.015%, in denatured alcohol

Supplier: SIGMA ALDRICH MICROSCOPY

Formalin solution, neutral buffered, 10% is the most commonly used fixative for light microscopy. It requires a relatively short period of fixation. It is suitable for the long-term storage of tissue. Once properly fixed, the tissue should be able to withstand the subsequent stages of tissue processing or staining. 10% NBF is well suited for large throughput laboratories, and requires a relatively short period of fixation, but can also be used for the long-term storage of tissue. Formalin fixation is thought to form between the aldehydes and the proteins, creating a gel, thus retaining cellular constituents in their in vivo relationship.

Supplier: SIGMA ALDRICH MICROSCOPY

Intended for use in the Gram Stain Procedure No. HT90.

Supplier: SIGMA ALDRICH MICROSCOPY

Lissamine Green B has been used in blood-brain barrier (BBB) studies and is used to study the its effect on herpes simplex virus 1 (HSV-1) corneal infection in animals.

Supplier: SIGMA ALDRICH MICROSCOPY

Fluorescent probe for hydrophobic (non-polar) regions in proteins and nucleoproteins.

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Dye content - ≥85%.

Supplier: SIGMA ALDRICH MICROSCOPY

4,4′-Methylenebis(N,N-dimethylaniline) is an intermediate in dye manufacture and works as a reagent for the determination of lead. It is suitable for the qualitative assay of cyanogens.

Supplier: SIGMA ALDRICH MICROSCOPY

Hematein, for microscopy (Hist.).

Supplier: SIGMA ALDRICH MICROSCOPY

Acridine Orange hydrochloride solution has been used to study autophagic cell death. It has also been used for the staining of chromosomes.

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Basacryl Red GL, Dye content 19 % (Basic Red 29)

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When immobilised using an insoluble porous support matrix such as agarose, Cibacron Blue 3GA is used for affinity chromatography purification of enzymes. This affinity has been attributed to a structural similarity between the dye and the natural ligands for proteins with cofactor binding domains.

Supplier: SIGMA ALDRICH MICROSCOPY

Fontana-Masson staining is used for the demonstration of argentaffin substances such as melanin, argentaffin granules and some neurosecretory granules. Staining patterns may be useful in cases of carcinoid tumors and melanoma.