Esta buscando: MP Biomedicals

Numero del catalogo: (ICNA0215829125)

Proveedor: MP Biomedicals

Descripción: Victoria Blue B is used as a nuclear stain in cytology/histochemical applications. Victoria Blue B may be used in the quantitative determination of phospholipids.

UOM: 1 * 25 g

Certificados Promoción

Proveedor: MP Biomedicals

Descripción: Ammonium tartrate, the ammonium salt of tartaric acid, is used in such applications as cell culture and chromatography.

Proveedor: MP Biomedicals

Descripción: Vincristine Sulfate, a dimeric Vinca alkaloid. Experiments have reported Vincristine Sulfate to demonstrate a capacity to suppress growth of proliferating cells through marked apoptosis. The cell death caused by this agent seems to result in a sustained accumulation of endogenous ceramide levels. Ceramide, has been proposed as a lipid second messenger with specific antiproliferative mediating responses.

Proveedor: MP Biomedicals

Descripción: Butylated hydroxytoluene is a phenolic antioxidant.

Proveedor: MP Biomedicals

Descripción: β-Alanine is an N-blocked form of alanine. A nonselective endogenous glycine receptor agonist; a taurine analogue; an electrolyte.

Proveedor: MP Biomedicals

Descripción: Soluble in alcohol (ethanol: 50 mg/ml), benzene, ether. Insoluble in water. Chloroform: soluble 0,1 g/ml, clear, slightly yellow to deep yellow.

Proveedor: MP Biomedicals

Descripción: Poly-lysine is a polycation which binds to DNA, red cell membrane and any negatively charged protein. When adsorbed to the culture surface, poly-lysine increases the number of positively charged sites available for cell binding. A compromise between the easier to use lower molecular weight products and the extremely viscous higher molecular weights would be the products in the range of 70,000-150,000.
It is typically used as a coating substrate for culture dishes, slides, etc. It enhances electrostatic interaction between negatively charged ions of the cell membrane and the culture surface. Both the D- and L- form of the poly-lysine can be used as a coating substrate since poly-lysine is a nonspecific attachment factor for cells; however, certain cells can digest poly-lysine. In this case, poly-D-lysine should be used as the attachment factor so that the cells are not disrupted by excessive uptake of L-lysine.
Other uses for poly-lysine have been reported as well:
• Conjugation to methotrexate for increased drug transport.
• Microencapsulation of islets.
• Use in simple reproducible procedure for chromosomal preparations from a variety of tissues.
• Immobilation of living cells in biocompatible semipermeable microcapsules.
• In the preparation of polycationic beads.
• Conjugation to albumin and horseradish peroxidase to enhance cellular uptake.
Poly-D-lysine hydrobromide is a synthetic amino acid that enhances cell adhesion to solid substrates. It has additionally been shown to eliminate prion proteins from infected cells.

Proveedor: MP Biomedicals

Descripción: Cholesterol is a component used for the preparation and study of artificial model membranes. One example is a study of valinomycin induced changes in membrane potentials of red blood cell and phospholipid (phosphatidylcholine from egg yolk plus cholesterol) vesicle suspensions. Positively charged cyanine dyes were used that fluorimetrically respond to the change in potential. Cholesterol is suitable for use in liposome preparations. It is standard for clinical work.

Proveedor: MP Biomedicals

Descripción: Lymphocyte Separation Medium (LSM™) is formulated for isolation of mononuclear cells from defibrinated or heparinised whole human blood. One-step centrifugation permits separation of mononuclear lymphocytes from erythrocytes, polynuclear lymphocytes and most platelets. It is a sterile-filtered solution of a sucrose polymer and diatrizoate salts.

Proveedor: MP Biomedicals

Descripción: Adenosina 5'-monofosfato, sal disódica (AMP sal disódica) hidrato ≥99%, en polvo

Proveedor: MP Biomedicals

Descripción: 2'-Deoxyadenosine 5'-diphosphate (dADP) may be used for the synthesis of deoxyadenylate oligonucleotides with enzymes such as polynucleotide phosphorylase from Escherichia coli.

Proveedor: MP Biomedicals

Descripción: Soluble in Water.

Proveedor: MP Biomedicals

Descripción: Storage: -20°C, desiccate
This is an ultrapure NAD, chromatographically purified to remove trace inhibitors.
β-NAD, a pyridine nucleotide and biologically active form of nicotinic acid, is a coenzyme necessary for the catalytic reaction of certain enzymes. It occurs in living cells primarily in the oxidized state. Serves as a coenzyme of the dehydrogenases, especially in the dehydrogenation of primary and secondary alcohols. NAD usually acts as a hydrogen acceptor, forming NADH which then serves as a hydrogen donor in the respiratory chain.
Many metabolites and enzymes of biological interest are present in tissues at low concentrations. With the use of β-NAD as a catalyst intermediate and several enzymes in a multistep system, known as enzyme cycling, much greater sensitivity for detection of these components is achieved. The reduced form, β-NADH, is fluorescent whereas β-NAD is not. This difference in fluorescence provides a sensitive fluorescent measurement of the oxidized or reduced pyridine nucleotides at concentrations down to 10-7 M.
Electron acceptor. β-NAD is a carrier for hydride ion, forming b-NADH. Hydride ion is enzymatically removed from a substrate molecule by the action of dehydrogenases such as malic dehydrogenase and lactic dehydrogenase. Such enzymes catalyze the reversible transfer of a hydride ion from malate or lactate to b-NAD to form the reduced product, b-NADH. Unlike b-NAD which has no absorbance at 340 nm, b-NADH absorbs at 340 nm (EmM = 6.22). The increase in absorbance at 340 nm with the formation of b-NADH is the basis for measurement of activity of many enzymes.

Proveedor: MP Biomedicals

Descripción: Eosin Y disodium salt is used in combination with Azure II to show morphological details of marrow cells; buffered Azure A/Eosin Y method for demostrating cell granules, microorganisms and nuclei; for showing insect musculature; for demonstrating cells infected with mosquito-iridescent virus; use in combination with Alum Hematoxylin/Azure II to show mast cells, early necrobiotic changes in cells and protozoans, rickettsias and bacteria in tissues; to demonstrate volutin granules in any microorganism; Bond's modification of Mann's Eosin-Methyl Blue for Negri bodies in smears; Harris stain for Negri bodies in smears; Mann's method for staining Negri bodies in sections; Gridley's stain for Endamoeba in tissue sections; a modified methenamine-silver nitrate method for the demonstration of Endamoeba in sections. It is used as a counterstain for hematoxylin.

Proveedor: MP Biomedicals

Descripción: Rifamycin SV is a broad-spectrum semisynthetic antimicrobial agent of the rifamycin group.

Proveedor: MP Biomedicals

Descripción: HYDROCORTISONE-21-ACETATE (Δ4-Pregnen-11β,17α,21-triol- 3,20-dione; Cortisol acetate) Crystalline