@inproceedings{d3bd61d6d5ce422ea668dd7cf07d054a,
title = "Gold nanostructures using tobacco mosaic viruses for optical metamaterials",
abstract = "We have succeeded in aligning gold nanoparticles (Au NPs) in three-dimensions using tobacco mosaic virus (TMV) in order to realize new optical properties. TMV is a tube-shaped plant virus about 300 nm in length with an outer- and inner-diameter of 18 nm and 4 nm. We genetically fused material-binding peptides that can promote metal crystallization, namely a gold-binding peptide (GBP) and a titanium-binding peptide (TBP), to the outer-surface of TMV. By reducing potassium chloroaurate with sodium borohydride in the presence of the engineered viruses in 5% acetic acid solution, Au NPs were deposited on the outer-surface of the viruses. Using TBP-fused TMV, NPs of 5 nm were obtained, with a standard deviation smaller than those deposited on wild-type TMV. The diameter of the NPs on GBP-fused TMV was 10 nm. These results indicate that genetically-modified TMVs are promising templates for the construction of optical metamaterials.",
keywords = "Biological molecules, Biomineralization, Material-binding peptide, Optical metamaterials, TMV",
author = "Mime Kobayashi and Ichiro Yamashita and Yukiharu Uraoka and Kiyotaka Shiba and Satoshi Tomita",
year = "2011",
doi = "10.1117/12.886652",
language = "English",
isbn = "9780819486608",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Metamaterials VI",
note = "Metamaterials VI ; Conference date: 20-04-2011 Through 21-04-2011",
}