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Chromatography Using Short Layer Monolithic Columns – Method of Choice for Large Scale Virus Purification

Traditionally, viruses are purified by time consuming methods such as CsCl density gradient centrifugation or similar. These methods are often inefficient and limited to small scale. In recent years different methods for virus purification, based on ion exchange, gel filtration and affinity chromatography have became popular. Recently, CIM® disk monolithic columns were used for successful concentration of two plant viruses (1) and for improved detection of two human viruses (2). Cucumber mosaic virus (CMV) and Tomato mosaic virus (ToMV) were concentrated and subsequently detected from extremely diluted samples in which they were initially undetectable. Successful concentrations of both viruses encourage us to explore the possibilities of CIM® supports for virus purification. As a model virus ToMV was selected. ToMV is a rod shaped plant virus with a typical size of 300 x 18 nm and isoelectric point at pH 4.6.


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