SelectScience
Join Free
Accelerating Science
NewsLife Sciences

Thermo Fisher Scientific Offers New Line of Centrifugal Concentrators

17 Aug 2009
Sarah Sarah
Marketing / Sales

Product news

Thermo Fisher Scientific, the world leader in serving science, today introduced the Thermo Scientific Pierce Concentrators for convenient protein concentration, desalting and buffer exchange. The unique design of the Pierce® Concentrators consists of a high-performance regenerated cellulose membrane fused to a conical device. This design greatly improves the concentration factor achieved in a single centrifugation step and minimizes polarization and adsorption at the membrane surface.

The Pierce Concentrators result in concentration factors of greater than 110-fold in less than 45 minutes with the 20 ml device. The same concentration is achieved in 30 minutes with the 7 ml device.

The Pierce Concentrators are compatible with swinging-bucket and fixed-angle rotors and are accurately rated for molecular weight cut-off (MWCO), routinely providing greater than 90 percent recovery of proteins larger than the membrane MWCO. The Pierce Concentrators are available with MWCOs of 9, 20 or 150K.

The Pierce Concentrators are supplied in packs of 10 or 25 devices. The 7 ml size device accommodates sample volumes of 1-7 mls; the 20 ml size device covers 5-20 ml sample volumes.

Tags

CentrifugesCentrifuges are used to separate particulates suspended in a liquid via the application of a centrifugal force including cells, macromolecules, nanoparticles and precipitates. Centrifuges come in three sizes: microcentrifuges, benchtop and floor-standing centrifuges, depending on the volume and number of samples that require separation. When choosing a centrifuge, consider its maximum separation power indicated by its relative centrifugal force (RCF) value. Low force centrifuges reach a maximum RCF of 8,000 g, high-force centrifuges can reach maximum RCF values of 80,000 g. For extremely high forces, consider ultracentrifuges (up to 800,000 g). Refrigerated and vacuum centrifuges also known as concentrators are available for more specialized applications. A range of volumes are available for centrifuge tubes and microfuge tubes, depending on sample sizes. Find the best centrifuges in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.DNA / RNA Extraction and PurificationPurified DNA and RNA are required for numerous downstream molecular biology applications. Consequently, the importance of high-quality DNA/RNA extraction and purification equipment cannot be underestimated. Many purification kits are available and are typically optimized for nucleic acid type and source, including plasmid DNA, genomic DNA, mRNA, RNA and viral nucleic acid purification kits. Automated extraction and purification of nucleic acids can be implemented with magnetic bead separator instruments or high-throughput purification workstations. Find the best DNA/RNA extraction and purification equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Protein PurificationProtein purification is a vital step in drug discovery, therapeutics, biotech and life science research. The purification process typically involves subcellular or membrane protein extraction with cell lysis kits, separation of proteins from cell debris by filtration or spin columns, and the isolation of proteins of interest from other proteins and impurities with affinity purification (including fusion protein tags and antibody binding proteins A, G and L), immunoprecipitation or chromatographic methods, such as ion exchange, size exclusion and immobilized metal affinity chromatography. All purification methods come in multiple formats for your laboratory needs, including agarose or magnetic beads, resins, columns and filter plates. Find the best protein purification equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Robotic InstrumentsRobotic instruments can be used for high-throughput automation of many lab processes. Such processes use instruments for assays like cell based assays and ELISA, for sample preparation like shakers, centrifuges and incubators, and for analysis such as sequencing and western blot analyzers. Useful features of robotic instruments include speed, reproducibility, barcode readers, software and automation.

Related articles

Thermo Fisher Scientific Offers New Line of Centrifugal Concentrators