97566 Results for: "Silver+sulphate&pageNo=25&view=easy"

Supplier: MP Biomedicals

MP EcoChrom™ SILICA is used as a suspending and thickening agent in pharmaceutical.A silica-based aerogel was used in the Stardust spacecraft to collect extraterrestrial particles. Silica is also used in the extraction of DNA and RNA due to its ability to bind to the nucleic acids under the presence of chaotropes. As hydrophobic silica it is used as a defoamer component. In hydrated form, it is used in toothpaste as a hard abrasive to remove tooth plaque. SiO2 has a number of distinct crystalline forms (polymorphs) in addition to amorphous forms. In the majority of silicates, the Si atom shows tetrahedral coordination, with 4 oxygen atoms surrounding a central Si atom.

MP EcoChrom™ Silica, the chemical compound silicon dioxide, also known as silica (from the Latin silex), is an oxide of silicon with the chemical formula SiO2 with a mean pore size of 60Å and particles size of 200-500μm. MP silica are free of particles outside the standard range. The irregular shape of MP Silica permits the easy packing of column permeability and plate number. They allow easy switching from one sieve cut to another, offering an easy way to change the chromatographic methods. It has been known for its hardness since ancient times. Silica is most commonly found in nature as sand or quartz, as well as in the cell walls of diatoms.

Supplier: EPPENDORF

This convenient set offers safe, ergonomic and lightweight pipettes along with an abundance of high-quality filter tips made from bio-based material (except filter). Package includes 4 Eppendorf Research® plus pipettes and 3840 matching ep Dualfilter T.I.P.S.® BioBased tips, covering a volume range of 0,1 to 1000 μl.

Supplier: ProSci Inc.

DDX25 is a member of DEAD box proteins family. DEAD box proteins, characterized by the conserved motif Asp-Glu-Ala-Asp (DEAD), are putative RNA helicases. They are implicated in a number of cellular processes involving alteration of RNA secondary structure, such as translation initiation, nuclear and mitochondrial splicing, and ribosome and spliceosome assembly. Based on their distribution patterns, some members of the DEAD box protein family are believed to be involved in embryogenesis,spermatogenesis, and cellular growth and division. DDX25 is a gonadotropin-regulated and developmentally expressed testicular RNA helicase. It may serve to maintain testicular functions related to steroidogenesis and spermatogenesis.DEAD box proteins, characterized by the conserved motif Asp-Glu-Ala-Asp (DEAD), are putative RNA helicases. They are implicated in a number of cellular processes involving alteration of RNA secondary structure, such as translation initiation, nuclear and mitochondrial splicing, and ribosome and spliceosome assembly. Based on their distribution patterns, some members of the DEAD box protein family are believed to be involved in embryogenesis, spermatogenesis, and cellular growth and division. This gene encodes a member of this family. The encoded protein is a gonadotropin-regulated and developmentally expressed testicular RNA helicase. It may serve to maintain testicular functions related to steroidogenesis and spermatogenesis.

Supplier: CAMAG

Seal for 25ml and 50ml syringes 1 * 1 items

Supplier: PRECISION DYNAMICS TIMEM

LABELLING TAPE AQUA 25MMX12,7M 1 * 1 Roll

Supplier: MP Biomedicals

Storage: +4 °C
Pyruvic acid is an intermediate in sugar metabolism and in enzymatic carbohydrate degradation (alcoholic fermentation) where it is converted to acetaldehyde and CO2 by carboxylase. In muscle, pyruvic acid (derived from glycogen) is reduced to lactic acid during exertion, which is reoxidized and partially retransformed to glycogen during rest. It improves coliform recovery when present in culture medium. It is involved in a metabolic regulatory pathway activated by mitochondrial oxidants. Pyruvate is involved in respiratory regulation in plants by interacting with alternative oxidase at a conserved cysteine residue. It may help prevent hydrogen peroxide mediated cell death.
Sodium pyruvate is utilized as a component in culture broth and media. Sodium pyruvate is used in Wallen fermentation medium to enhance the conversion of oleic acid to 10-ketostearic acid by Bacillus sphaericus. Sodium pyruvate has also been used to establish stably transfected human B cell lines.
Sodium Pyruvate has shown antioxidant properties and protective effects against oxygen radicals. Pyruvate is produced as part of glycolysis and is an intermediate in many metabolic pathways. It can be converted into acetyl CoA and enter the TCA Cycle.

Supplier: Brand

PP. Eight connected 0,2 ml tubes and domed or flat caps in strips of eight.

Supplier: GERING

HYDROMETER 0,940-1,000 25C 160MM 1 * 1 items

Supplier: PRECISION DYNAMICS TIMEM

LABELLING TAPE CHARTR.25MMX12,7M 1 * 1 Roll

Supplier: VWR Chemicals

The peqGOLD DNase I Digest Kit is optimised for use with peqGOLD RNA extraction protocols. Normally DNase I digestion is not required for RNA purified with peqGOLD RNA Mini Columns as our silica-based spin column technology efficiently removes the majority of DNA without enzymatic digestion. However, certain sensitive RNA applications may require further DNA removal.

Supplier: Brand

PP. Eight connected 0,2 ml tubes with attached domed cap strips.

Supplier: GERING

HYDROMETER 1,060-1,120 25C 160MM 1 * 1 items

Supplier: WATERS

AccQ-Tag Ultra - Derivitization Kit (250 analyses) 1 * 1 KIT

Supplier: MORGAN ADVANCED MATERIALS HALD

Alsint tiles square 50x25x4mm 1 * 1 items

Supplier: HAMILTON BONADUZ

calibrate with certificate 1 * 1 items

Supplier: GERING

HYDROMETER 1,280-1,340 25C 160MM 1 * 1 items

Supplier: CUSTOM MADE CHEMICALS LAB

7 COMPONENTS MIX 1 * 5 Ampoul

Supplier: Poulten & Graf

BURETTE PTFE S/COCK CLASS A 25MLX0.05ML 1 * 1 items

Supplier: Hach

SAMPLE CELL 1INCH SQUARE25ML MATCHEDPAIR 1 * 1 items

Supplier: EDWARDS HIGH VACUUM METTLER

EDW CLAMPING RING NW25 1 * 1 items

Supplier: Cytiva

The pGEX vectors have an expanded multiple cloning site (MCS) that contains six restriction sites. The expanded MCS facilitates the unidirectional cloning of cDNA inserts obtained from libraries constructed using many available lambda vectors. pGEX-6P-1, pGEX-6P-2, and pGEX-6P-3 each encode the recognition sequence for site-specific cleavage by PreScission Protease between the GST domain and the multiple cloning site. pGEX-4T-1, pGEX-4T-2, and pGEX-4T-3 are derived from pGEX-2T and contain a Thrombin recognition site. pGEX-5X-1, pGEX-5X-2, and pGEX5X-3 are derivatives of pGEX-3X and possess a Factor Xa recognition site.

Supplier: MP Biomedicals

Poly-L-lysine is a positively charged amino acid polymer. Poly-lysine binds to DNA, red cell membrane and any negatively charged protein. 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. When adsorbed to the culture surface, poly-lysine increases the number of positively charged sites available for cell binding.

Supplier: Testo

PRESSURE METER TESTO 521-3 0-2,5HPA 1 * 1 items

Supplier: MORGAN ADVANCED MATERIALS HALD

PIPE PYTHAGORAS 32X25X700MM 1 * 10 items

Supplier: MP Biomedicals

Nucleic Acid Purification Kits and Reagents, PPS solution

Supplier: Thermo Fisher Scientific

Slide-A-Lyzer MINI Dialysis devices, 3,5K MWCO, are disposable polypropylene cups with integrated, low-binding membranes for dialysis and high recovery of proteins and macromolecules >3,5 kDa in volumes from 10 µl to 2 ml. They were developed as a convenient means for dialysing small-volume samples of nucleic acids and proteins without undue sample loss. Low molecular weight contaminant removal, buffer exchange, desalting, equilibrium dialysis, micro conjugation reactions, and concentration can be accomplished with these devices.

Supplier: Cayman Chemical

Lupeol, a dietary triterpene found in certain fruits, vegetables, and medicinal plants, has potent anti-inflammatory, anticarcinogenic, antimutagenic, and antimalarial activity. It suppresses the growth of hepatocellular carcinoma cell lines SMMC7721 and HepG2 with IC50 values of 45 and 48.5 μM and melanoma cell lines Mel 928 and Mel 1241 with IC50 values of 75 and 72 μM.¹'² At 0.76 g/kg lupeol causes a significant decrease in the blood pressure of stroke-prone hypertensive rats and reduces expression of hepatic genes involved in triglyceride and cholesterol synthesis.³ It also has significant anti-inflammatory effects at 50 mg/kg in a carrageenan-induced edema model, inhibiting neutrophil migration.⁴

1. Tarapore, R.S.,Siddiqui, I.A.,Saleem, M., et al. Specific targeting of Wnt/β-catenin signaling in human melanoma cells by a dietary triterpene lupeol. Carcinogenesis 31(10), 1844-1853 (2010).
2. He, Y.,Liu, F.,Zhang, L., et al. Growth inhibition and apoptosis induced by lupeol, a dietary triterpene, in human hepatocellular carcinoma cells. Bio.Pharm.Bull. 34(4), 517-522 (2011).
3. Ardiansyah,Yamaguchi, E.,Shirakawa, H., et al. Lupeol supplementation improves blood pressure and lipid metabolism parameters in stroke-prone spontaneously hypertensive rats. Bioscience, Biotechnology, and Biochemistry 76(1), 183-185 (2012).
4. Lucetti, D.L.,Lucetti, E.C.,Bandeira, M.A., et al. Anti-inflammatory effects and possible mechanism of action of lupeol acetate isolated from Himatanthus drasticus (Mart.) Plumel. Journal of Inflammation 7(60), 1-11 (2010).

Supplier: Hach

Robust and intuitive portable meters, instilling confidence in reporting and managing your results.

Supplier: Priorclave

SAFETY VALVE COMPLETE 3/4 INCH (22MM) 1 * 1 items

Supplier: KLEINFELD

HOSE ISO-VERSINIC (VITON) FI EXT. 17 1 * 1 items