The invention is based on the discovery that certain membranes, which include side chains or molecular “brushes” having, for example, tertiary amino functional groups, can be used as highly effective filters to capture viruses/virus particles from liquids without removal of proteins. New methods...http://www.google.co.uk/patents/US7160464?utm_source=gb-gplus-sharePatent US7160464 - Methods for removal, purification, and concentration of viruses and methods of therapy based thereupon
