SAXS characterization of genetically engineered tobacco mosaic virus nanorods coated with palladium in the absence of external reducing agents.

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TitleSAXS characterization of genetically engineered tobacco mosaic virus nanorods coated with palladium in the absence of external reducing agents.
Publication TypeJournal Article
Year of Publication2013
AuthorsFreer, AS, Guarnaccio, L, Wafford, K, Smith, J, Steilberg, J, Culver, JN, Harris, MT
JournalJ Colloid Interface Sci
Volume392
Pagination213-8
Date Published2013 Feb 15
ISSN1095-7103
Abstract

Genetic modifications of the tobacco mosaic virus (TMV) coat proteins allow for an increase in the selective deposition and controlled growth of different metals onto the surface of the virus, making it an ideal biotemplate for metal nanowire formation. In the current process, TMV2Cys is coated sequentially with multiple uniform layers of palladium metal in aqueous solution under very mild conditions. Palladium nanowires of 300 nm in length and 30-40 nm in diameter have been created with this process. Transmission electron microscopy (TEM) and small angle X-ray scattering (SAXS) are used to characterize the thickness and uniformity of the metal surface. The TEM and SAXS results confirm that the final thickness of the palladium nanowires is controllable by varying the number of coating layers or the initial palladium concentration.

DOI10.1016/j.jcis.2012.09.072
Alternate JournalJ Colloid Interface Sci
PubMed ID23195774