期刊
NANOTECHNOLOGY
卷 16, 期 7, 页码 S435-S441出版社
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/16/7/019
关键词
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Improved depositions of various metal clusters onto a biomolecular template were achieved using a genetically engineered tobacco mosaic virus (TMV). Wild-type TMV was genetically altered to display multiple solid metal binding sites through the insertion of two cysteine residues within the amino-terminus of the virus coat protein. Gold, silver, and palladium clusters synthesized through in situ chemical reductions could be readily deposited onto the genetically modified template via the exposed cysteine-derived thiol groups. Metal cluster coatings on the cysteine-modified template were more densely deposited and stable than similar coatings on the unmodified wild-type template. Combined, these results confirm that the introduction of cysteine residues onto the outer surface of the TMV coat protein enhances the usefulness of this virus as a biotemplate for the deposition of metal clusters.
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