Self-assembly of virus-structured high surface area nanomaterials and their application as battery electrodes.

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TitleSelf-assembly of virus-structured high surface area nanomaterials and their application as battery electrodes.
Publication TypeJournal Article
Year of Publication2008
AuthorsRoyston, E, Ghosh, A, Kofinas, P, Harris, MT, Culver, JN
JournalLangmuir
Volume24
Issue3
Pagination906-12
Date Published2008 Feb 5
ISSN0743-7463
KeywordsCapsid Proteins, Coated Materials, Biocompatible, Cobalt, Computer Simulation, Electrodes, Microscopy, Electron, Scanning, Microscopy, Electron, Transmission, Models, Molecular, Nanostructures, Nanotechnology, Nickel, Protein Engineering, Tobacco Mosaic Virus
Abstract

High area nickel and cobalt surfaces were assembled using modified Tobacco mosaic virus (TMV) templates. Rod-shaped TMV templates (300 x 18 nm) engineered to encode unique cysteine residues were self-assembled onto gold patterned surfaces in a vertically oriented fashion, producing a >10-fold increase in surface area. Electroless deposition of ionic metals onto surface-assembled virus templates produced uniform metal coatings up to 40 nm in thickness. Within a nickel-zinc battery system, the incorporation of virus-assembled electrode surfaces more than doubled the total electrode capacity. When combined, these findings demonstrate that surface-assembled virus templates provide a robust platform for the fabrication of oriented high surface area materials.

DOI10.1021/la7016424
Alternate JournalLangmuir
PubMed ID18154364