Cleaver Scientific Has Introduced the Innovative New COMPAC-50 High Throughput COMET Assay System

2 Oct 2014
Kathryn Rix
Administrator / Office Personnel

Product news

Developed in collaboration with the Oxidative Stress Group at the University of Leicester (Leicester, UK), the unique design of the COMPAC-50 enables simultaneous electrophoresis of up to 50 COMET Assay slides saving considerable lab space and reducing slide handling time by up to two-thirds when compared to previous standard methods. This would equate to a significant time-saving of up to 90% when handling 50 COMET Assay slides.

The COMET Assay is an increasingly popular procedure for assessing DNA damage, both in academic and commercial research labs. Recently the COMET Assay has been introduced into standard tests, used for genotoxicity, by the pharmaceutical industry and for the regulation of chemicals within the European Commission’s Registration, Evaluation and Authorisation of Chemicals Programme. However, the sample throughput of the COMET Assay has traditionally been a limiting factor, typically limited to handling smaller numbers of slides, and a time-consuming procedure due to their individual manipulation.

The COMPAC-50 incorporates a novel methodology by which multiple slides may be simultaneously manipulated, and undergo electrophoresis, in batches of 25 rather than individually. This decreases assay time by 60%, and offers users the benefit of an electrophoresis tank with a substantially smaller footprint, and more uniform orientation of gels during electrophoresis, than is currently commercially available. This new high-throughput COMET Assay device will greatly increase the number of samples that can be analysed, decrease assay time, reagent requirements and risk of damage/loss of fragile low melting point gels. The new methodology employed by the COMPAC-50 is likely to make a significant impact upon the growing applications of the COMET Assay and be widely adopted as it makes a cumbersome assay much more refined.

Comet Assay Tanks

Cleaver Scientific Ltd

The COMET assay tanks are specialised electrophoresis units for Single Cell Gel Electrophoresis. The units are specifically designed to minimise exposure to light and reduce background DNA damage. Previously, units designed for standard electrophoresis have been used which with their clear construction have not offered an easy to use system. Constructed from Ebony acrylic to prevent UV degradation, the slides sit on a cooling platform which can be connected to a water supply or chiller for active temperature control and cooling.

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ElectrophoresisElectrophoresis equipment is used to separate mixtures of protein, DNA or RNA, based on their electric charge, size and other physical characteristics, by passing them through a medium such as a polyacrylamide gel, an agarose gel or a capillary tube. Electrophoresis equipment includes horizontal and vertical gel electrophoresis chambers, isoelectric focusing systems, 2D electrophoresis and capillary electrophoresis instruments. Precast gels with a gradient can be used or gels can be hand cast. Samples are run alongside ladders or markers to identify the approximate size of a molecule. Separated proteins and nucleic acids in the gel can be stained or probed with fluorescent markers and then imaged and detected using gel documentation instruments, transilluminators, densitometers and scanners. Find the best electrophoresis equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.High ThroughputHigh throughput experiments allow the simultaneous processing of several samples. This parallelization reduces the cost per experiment and increases reproducibility and output volume of data.Assay DevelopmentThe process of proving an assay to be sensitive with respect to the target is known as assay development. The assay should be able to characterize novel compounds and measure the potency of these compounds against a validated biological target.
Cleaver Scientific Has Introduced the Innovative New COMPAC-50 High Throughput COMET Assay System