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Comparison of Ion Exchange Ligands for Purificaton of Different Influenza Viruses

During last decades different methods for purification of influenza viruses have been described. Most of these methods were developed for purification of egg derived influenza virus which is still the main production system for influenza vaccine viruses. Since cell culture based technology is gaining more and more importance, the need for alternative, efficient and scaleable purification methods has risen. Chromatography is becoming a method of choice for purification of viruses. Relevance of this technique was recently demonstrated also for influenza viruses. Methacrylate monoliths are characterized by large channel diameter, high surface accessibility and convective mass transport. As a consequence they have high binding capacity for large molecules, enable high flow rates at low pressure drop and therefore increase productivity. Recently it has been proven that methacrylate monolithic columns can also be used for purification and concentration of different viruses.

It was the purpose of this work to explore possibilities for purification of influenza viruses on ion exchange methacrylate monoliths. Different subtypes of influenza A and influenza B virus were tested employing various ion exhange monolithic columns.


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