Spotlight Centrifuges, Stirrers & Shakers New Hot Plates and Stirrers High Capacity High Speed Shakers


Jeio Tech, Inc under the brand Lab Companion, has introduced a new line of high capacity/high speed shakers. Using a newly engineered direct drive mechanism, almost no load is too heavy for the Lab Companion SKC shakers - even at high speeds.


A large selection of models is available based on platform size and stroke diameter. Programmable motion control, LED displays, unbalanced load sensors, and self-protecting cut-off function make these shakers versatile and safe.


The SKC series offers speeds up to 500 rpm's. With a maximum orbit of 2.8" (70 mm), and clamps that accommodate up to 6-litre flasks. These shakers are engineered to work hard every day, and are covered by a two- year warranty.


Torrey Pines Scientific, Inc announces its new line of multi- position analog stirring hot plates and stirrers featuring 5 or 9 stirrers.


The large 12” (30.48cm) square ceramic heater tops have a temperature range to 450°C.


The 5-position stirring units can stir 5-800ml beakers, and the 9-position units can stir 9-500ml beakers of aqueous solutions with a stirring range from 100 to 1500rpm.


The units can support more than 50 pounds (22.6kg) on the plate surface, and they are designed to keep spills out of the chassis. All controls are mounted well in front of the heater surface to protect against accidental burns.


The units are available in 100VAC/50Hz, 115VAC/60Hz, 220VAC/60Hz and 230VAC/50Hz.


They are fused for safety and are supplied with user’s manual and detachable line cord for the country of use. All units are UL, CSA and CE or equivalent rated.


Circle no. 200


Numerous accessory options allow users to work with a variety of flask sizes, tubes, and bottles. ‘Spring Wire Racks’ and a new ‘Dual Tiered Platforms’ are also available for added flexibility and capacity requirements. A brand new accessory – ‘Sticky Pad’ even eliminates flask clamps altogether.


Circle no. 199


Multifunctional Centrifuges


The new AWEL™ range of centrifuges is now launched, including the Multifunction format. Bringing practical innovation to the service of the customer, each model in the MF series offers a large sample capacity for its class and accepts a variety of swing-out, microplate, and angle rotors. New features include the AWELight™ system that displays blue lid lights at the run end to indicate that samples are ready to be removed, increasing operator efficiency and improving process results. The AWELock™ system permits rotors to be exchanged and safely locked in position without using tools. A low profile adds to the convenience. The AWELine™ system automatically detects if the centrifuge is not horizontal – an essential safety requirement for the huge forces involved.


Responsibility in ecology means an energy regulation program and automatic shutdown when unused; an AWEL centrifuge consumes less energy than its counterparts.


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Fully Hermetic Cell Culture Centrifuge


Culturefuge 400 is the latest addition to Alfa Laval’s range of hermetically designed disc stack centrifuges for harvesting mammalian cell cultures.


Handling up to 20m3/h, Culturefuge 400 is a true, production-scale centrifuge. It consists of a disk-stack high-speed separator with piping for service liquids and process liquids and


includes an integrated electrical system with starter, PLC controls and pneumatic unit. A motor with an integrated VFD is standard. A steam-sterilisable pump for transport of the solids phase is an option. Culturefuge’s design is in accordance with both ASME and PED pressure vessel codes .


The centrifuge incorporates a bottom fed bowl which is completely filled with liquid to ensure that all air is excluded during cell separation. The unique hollow spindle concept allows for gentle acceleration of the feed liquid thus minimising the lysis of shear sensitive cell wall membranes while the air-free outlet reduces the risk of foaming in the centrate to a minimum.


Culturefuge can be sterilised and cleaned-in-place. The ‘dosing ring’ solids-ejecting system ensures low product losses and drier solids and flushing nozzles spray the outside of the centrifuge bowl, cyclone and the inside of the frame hood for maximum hygiene.


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CPS Disc Centrifuge Chosen to Monitor Coating Thickness of Nanoscale Drug Delivery Vehicles


The Centre for Nanoscale Science at the University of Liverpool has selected the DC24000 from CPS Instruments Europe to support their work in nano particle characterisation in biomedical applications.


Multidisciplinary research projects led by Professor Mathias Brust, of the Department of Chemistry, involve the chemical modification of (6-80nm) metal nano particles with biologically active molecules such as anti-cancer drugs, enzymes or signal peptides. The technology behind the DC24000, differential centrifugal sedimentation (DCS), allows the group to investigate particle size distributions and monitor the modification step which requires precise control over the type and number of ligands attached to the particles.


A whole range of particle sizing, spectroscopic and electrochemical techniques are available at the Centre including DLS, TEM, SEM, FTIR, NMR and SERS; the DC24000 was purchased as it deals particularly well with multi-modal size distributions.


The CPS DC24000 delivers routine ultra high resolution analysis of nano particle populations down to 2nm and differing in size by as little as 2%. The instrument has revolutionised nano particle size characterisation, proving to be an invaluable tool for countless nano applications around the World.


Further work for the group involves the investigation of quantitative measurements of molecular ligand shell thickness in monolayer protected clusters with a thickness resolution of a single C-C bond.


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