2012年10月
Chiral meta-molecules consisting of gold nanoparticles and genetically engineered tobacco mosaic virus
OPTICS EXPRESS
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- 巻
- 20
- 号
- 22
- 開始ページ
- 24856
- 終了ページ
- 24863
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1364/OE.20.024856
- 出版者・発行元
- OPTICAL SOC AMER
We demonstrate a chiral meta-molecule in the ultraviolet (UV) and visible (VIS) regions using a complex of Au nanoparticles (NPs) and rod-shaped tobacco mosaic virus (TMV). Au NPs five nm in diameter are uniformly formed on peptide-modified TMV. The peptide-modified TMV with uniform-sized Au NPs has improved dispersion in solution. A negative circular dichroism (CD) peak is produced around 540 nm, at plasmonic resonance wavelength of Au NPs. Additionally, modification of a CD peak in the UV region is observed. Attaching NPs to a virus causes the enhancement and modification of CD peaks in both the UV and VIS regions. Our results open a new avenue for the preparation of three dimensional chiral metamaterials at optical frequencies. (C) 2012 Optical Society of America
- リンク情報
- ID情報
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- DOI : 10.1364/OE.20.024856
- ISSN : 1094-4087
- Web of Science ID : WOS:000310443400079