Abstract
Currently, a range of biologically active molecules have been attached to plant and bacterial viras nanoscaffolds, yielding stable nanoparticles that display multiple copies of the desired molecule. In this paper we propose a new method of non-covalent attachment of peptides to the surface of virios. We have demonstrated that this method is efficient in a model system that includes tobacco mosaic virus particles, synthetic polycation (quaternized poly(4-vinylpyridine) carrying ethyl ethyl pendant radicals) and polypeptide of interest. This principle of step-by-step binding to the surface of virions was used for electrostatic association with hydrophilic fragment of influenza virus haemagglutinin.
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