Decoration of Cowpea Mosaic Virus with Multiple, Redox-Active, Organometallic Complexes


  • The Biotechnology and Biological Sciences Research Council (UK) and the EU, Early Stage Training Marie Curie Scheme, MEST-CT-2004-504273 (N.F.S.) are acknowledged for funding. Prof. Christopher J. Pickett is thanked for helpful discussions and Dr. Saad K. Ibrahim for assistance with electrochemistry studies.


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Cowpea mosaic virus (CPMV) particles have been decorated on their external surface with 240 redox-active, organometallic, ferrocenecarboxylate moieties (see Figure). The multiple redox centers behave as electronically isolated units and the electrochemical reaction is diffusion controlled. This expands the versatility of CPMV as a nanoscaffold for electrochemical biosensor or nanoelectronic device applications.