Chiral meta-molecules consisting of gold nanoparticles and genetically engineered tobacco mosaic virus

Mime Kobayashi; Satoshi Tomita; Kei Sawada; Kiyotaka Shiba; Hisao Yanagi; Ichiro Yamashita; Yukiharu Uraoka

doi:10.1364/OE.20.024856

Chiral meta-molecules consisting of gold nanoparticles and genetically engineered tobacco mosaic virus

Mime Kobayashi, Satoshi Tomita, Kei Sawada, Kiyotaka Shiba, Hisao Yanagi, Ichiro Yamashita, Yukiharu Uraoka

Research output: Contribution to journal › Article › peer-review

30 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	24856-24863
Number of pages	8
Journal	Optics Express
Volume	20
Issue number	22
DOIs	https://doi.org/10.1364/OE.20.024856
Publication status	Published - 2012 Oct 22
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

Access to Document

10.1364/OE.20.024856

Cite this

@article{3addad2fc60c410ea96f1934c126d7d6,

title = "Chiral meta-molecules consisting of gold nanoparticles and genetically engineered tobacco mosaic virus",

abstract = "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.",

author = "Mime Kobayashi and Satoshi Tomita and Kei Sawada and Kiyotaka Shiba and Hisao Yanagi and Ichiro Yamashita and Yukiharu Uraoka",

year = "2012",

month = oct,

day = "22",

doi = "10.1364/OE.20.024856",

language = "English",

volume = "20",

pages = "24856--24863",

journal = "Optics Express",

issn = "1094-4087",

publisher = "The Optical Society",

number = "22",

}

TY - JOUR

T1 - Chiral meta-molecules consisting of gold nanoparticles and genetically engineered tobacco mosaic virus

AU - Kobayashi, Mime

AU - Tomita, Satoshi

AU - Sawada, Kei

AU - Shiba, Kiyotaka

AU - Yanagi, Hisao

AU - Yamashita, Ichiro

AU - Uraoka, Yukiharu

PY - 2012/10/22

Y1 - 2012/10/22

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84868247265&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84868247265&partnerID=8YFLogxK

U2 - 10.1364/OE.20.024856

DO - 10.1364/OE.20.024856

M3 - Article

C2 - 23187252

AN - SCOPUS:84868247265

VL - 20

SP - 24856

EP - 24863

JO - Optics Express

JF - Optics Express

SN - 1094-4087

IS - 22

ER -

Chiral meta-molecules consisting of gold nanoparticles and genetically engineered tobacco mosaic virus

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this