You Searched For: Cellulose+acetate

Supplier: Thermo Fisher Scientific

Description: <B>Type 205: </B>Cellulose nitrate, sterile. Certified to meet requirements of standard methods for water quality control for microbiological analysis, sterility tests, food and beverage testing. Individually wrapped.

Supplier: UVEX

Description: Lightweight face shields made from durable plastic with headrest and a 1 mm thick acetate screen.

Catalog Number: (514-0675)

Supplier: Sartorius

Description: Minisart® Ophthalsart with surfactant-free cellulose acetate (SFCA) is made for aqueous or oily solutions with a pH of 4 - 8. Type 17528 with a pore size of 0,2 µm can be used for sterile filtration and has a male luer slip outlet. Version K is individually packed and sterilised by ethylene oxide (EO). Only available in the EU/EEA and registered countries.

UOM: 1 * 50 items

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Supplier: VWR Collection

Description: Typical applications are clarification, sterile filtration, sample preparation and sterile venting.

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Supplier: Corning

Description: Syringe filters are available with a choice of membrane type: Polyethersulfone (PES) for low protein binding and faster flow rates; surfactant-free cellulose acetate (SFCA), with or without prefilter, for lowest protein binding; Polytetrafluoroethylene (PTFE) for chemical resistance; regenerated cellulose (RC) – the best choice for DMSO compatibility; and nylon (NY) which is hydrophilic, surfactant-free and lowest extractable.

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Supplier: MP Biomedicals

Description: Storage: Room Temperature, desiccate, store under nitrogen.
Dimethyl Sulfoxide is a dipola, aprotic solvent. It has been shown to accelerate strand renaturation (1-10% concentration) and is believed to give the nucleic acid thermal stability against depurination.
Dimethyl Sulfoxide is used to enhance dermal absorption of many chemicals, as a solvent for many organic and inorganic compounds including fats, carbohydrates, dyes, resins, and polymers, in antifreeze or hydraulic fluids, as a cryopreservative for cell cultures, oxidation of thiols and disulfides to sulfonic acids, as a PCR cosolvent to help improve yields, especially in long PCR. DMSO is routinely used in polymerase chan reaction (PCR), amplification of cDNA libraries, DNA sequencing, column-loading buffers for poly (A)+ RNA selection, buffers for the transformation of competent E. coli, and transfection protocols.
To prepare sterile solutions use a teflon or nylon membrane to sterile-filter the DMSO - do not use a cellulose acetate membrane.

Supplier: MP Biomedicals

Description: Applications:
Urea is used for the denaturation of proteins and as a mild solubilization agent for insoluble or denatured proteins. Useful for renaturing proteins from samples already denatured with 6 M guanidine chloride such as inclusion bodies and in the extraction of the mitochondrial complex. It is commonly used to solubilize and denature proteins for denaturing isoelectric focusing and two-dimensional electrophoresis and in acetic acid-urea PAGE gels. May be used with guanidine hydrochloride and dithiothreitrol (DTT) in the refolding of denatured proteins into their native or active form. Urea is used in cell or tissue culture media to increase the osmolality. Urea has also been used as fertilizer because of the easy availability of nitrogen; in animal feeds; it is reacted with aldehydes to make resins and plastics; condensed with malonic ester to form barbituric acid; used in the paper industry to soften cellulose.
Biochem/physiol Actions:
Urea has been shown to act as an aldosterone antagonist in the development of peanut agglutinin binding in cultured embryonic renal collecting duct epithelial cells. Urea is the principal end product of nitrogen metabolism in most mammals, formed by the enzymatic reactions of the Kreb's cycle.
Typical Working Concentration:
The use of 2 g/L urea in the culture of Kluyveromyces marxianus to produce a thermostable extracellular lipase has been described. Urea is typically used at a concentration of 8 M for protein denaturation or solubilization. A final concentration of 5 M urea is commonly used in molecular biology for sequencing gels. To prevent carbamylation, do not heat urea containing buffers above 37 °C

Supplier: DWK Life Sciences

Description: CELLine™ is a disposable, two-compartment bioreactor manufactured from optically clear virgin PS with a gas transfer bottom made of a moulded silicone membrane providing a 0,2 µm vent barrier. The compartments are separated by a 10 kDa semi-permeable cellulose acetate membrane and individually pressure tested for integrity. CELLine™ classic (CL) is ideal for laboratory scale applications using suspension cells or adherent cells in combination with microcarriers. The unit is optimised for cultivation of hybridomas and many other cell types (for example CHO, NSO, SF cells). CELLine™ adhere (AD) is specifically adapted to allow growth of anchorage-dependent cells (for example HEK, BHK, CHO cells). The CELLine™ AD bioreactor contains a woven PET matrix in the cell compartment providing an ideal surface for cell attachment.

Supplier: THERMO NATIONAL SCIENTIFIC

Description: These syringe filters have a PP housing.

Supplier: Sartorius

Description: Filter cartridge, Sartobran®, PP, Membrane material: CA, Type: 2-flange bayonet adapter with 226 double O-ring, Pore size: 0,2 µm, Filtration area: 18000 cm²

Supplier: Agilent

Description: These syringe filters have a PP or MBS housing.

Catalog Number: (22184-250G-F)

Supplier: Merck

Description: Cellulose, Supelco®

UOM: 1 * 250 g

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Catalog Number: (09906-1KG)

Supplier: Merck

Description: Cellulose, Supelco®

UOM: 1 * 1 kg

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Catalog Number: (22182-1KG)

Supplier: Merck

Description: Cellulose, Supelco®

UOM: 1 * 1 kg

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Catalog Number: (22197-250G-F)

Supplier: Merck

Description: Cellulose DS-0, powder suitable for thin layer chromatography (TLC), Supelco®

UOM: 1 * 250 g

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Catalog Number: (K390-250G)

Supplier: VWR Chemicals

Description: Methyl cellulose, 4000 mPa.S (2% H₂O), high purity

UOM: 1 * 250 g

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