Fabrication of NIR-excitable SERS-active composite particles composed of densely packed au nanoparticles on polymer microparticles

Masaaki Kanahara; Hiroki Satoh; Takeshi Higuchi; Atsushi Takahara; Hiroshi Jinnai; Koji Harano; Satoshi Okada; Eiichi Nakamura; Yasutaka Matsuo; Hiroshi Yabu

doi:10.1002/ppsc.201400191

Fabrication of NIR-excitable SERS-active composite particles composed of densely packed au nanoparticles on polymer microparticles

Masaaki Kanahara, Hiroki Satoh, Takeshi Higuchi, Atsushi Takahara, Hiroshi Jinnai, Koji Harano, Satoshi Okada, Eiichi Nakamura, Yasutaka Matsuo, Hiroshi Yabu

Materials-Measurement Hybrid Research Center

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

16 Citations (Scopus)

Abstract

A simple fabrication method is demonstrated for surface-enhanced Raman scattering (SERS)-active plasmonic nanoballs, which consisted of Au nanoparticles (NPs) and core-shell polystyrene and amino-terminated poly(butadiene) particles, by heterocoagulation and Au NP diffusion. The amount of Au NPs introduced into the core-shell particles increases with the concentration of Au NPs added to the aqueous dispersion of the core-shell particles. When the amount of Au NPs increases, closely packed, three-dimensionally arranged and close-packed Au NPs arrays are formed in the shells. Strong SERS signals from para-mercaptophenol adsorbed onto composite particles with multilayered Au NPs arrays are obtained by near-infrared (NIR) light illumination. A novel way of fabricating surface-enhanced Raman scattering (SERS)-active nanocomoposite particles is presented, which can be excited by near infrared (NIR) lights.

Original language	English
Pages (from-to)	441-447
Number of pages	7
Journal	Particle and Particle Systems Characterization
Volume	32
Issue number	4
DOIs	https://doi.org/10.1002/ppsc.201400191
Publication status	Published - 2015 Apr 1

Keywords

NIR
SERS
plasmonics
polymer particles
self-organization

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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title = "Fabrication of NIR-excitable SERS-active composite particles composed of densely packed au nanoparticles on polymer microparticles",

abstract = "A simple fabrication method is demonstrated for surface-enhanced Raman scattering (SERS)-active plasmonic nanoballs, which consisted of Au nanoparticles (NPs) and core-shell polystyrene and amino-terminated poly(butadiene) particles, by heterocoagulation and Au NP diffusion. The amount of Au NPs introduced into the core-shell particles increases with the concentration of Au NPs added to the aqueous dispersion of the core-shell particles. When the amount of Au NPs increases, closely packed, three-dimensionally arranged and close-packed Au NPs arrays are formed in the shells. Strong SERS signals from para-mercaptophenol adsorbed onto composite particles with multilayered Au NPs arrays are obtained by near-infrared (NIR) light illumination. A novel way of fabricating surface-enhanced Raman scattering (SERS)-active nanocomoposite particles is presented, which can be excited by near infrared (NIR) lights.",

keywords = "NIR, SERS, plasmonics, polymer particles, self-organization",

author = "Masaaki Kanahara and Hiroki Satoh and Takeshi Higuchi and Atsushi Takahara and Hiroshi Jinnai and Koji Harano and Satoshi Okada and Eiichi Nakamura and Yasutaka Matsuo and Hiroshi Yabu",

note = "Publisher Copyright: {\textcopyright} 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.",

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doi = "10.1002/ppsc.201400191",

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AU - Kanahara, Masaaki

AU - Satoh, Hiroki

AU - Higuchi, Takeshi

AU - Takahara, Atsushi

AU - Jinnai, Hiroshi

AU - Harano, Koji

AU - Okada, Satoshi

AU - Nakamura, Eiichi

AU - Matsuo, Yasutaka

AU - Yabu, Hiroshi

PY - 2015/4/1

Y1 - 2015/4/1

N2 - A simple fabrication method is demonstrated for surface-enhanced Raman scattering (SERS)-active plasmonic nanoballs, which consisted of Au nanoparticles (NPs) and core-shell polystyrene and amino-terminated poly(butadiene) particles, by heterocoagulation and Au NP diffusion. The amount of Au NPs introduced into the core-shell particles increases with the concentration of Au NPs added to the aqueous dispersion of the core-shell particles. When the amount of Au NPs increases, closely packed, three-dimensionally arranged and close-packed Au NPs arrays are formed in the shells. Strong SERS signals from para-mercaptophenol adsorbed onto composite particles with multilayered Au NPs arrays are obtained by near-infrared (NIR) light illumination. A novel way of fabricating surface-enhanced Raman scattering (SERS)-active nanocomoposite particles is presented, which can be excited by near infrared (NIR) lights.

AB - A simple fabrication method is demonstrated for surface-enhanced Raman scattering (SERS)-active plasmonic nanoballs, which consisted of Au nanoparticles (NPs) and core-shell polystyrene and amino-terminated poly(butadiene) particles, by heterocoagulation and Au NP diffusion. The amount of Au NPs introduced into the core-shell particles increases with the concentration of Au NPs added to the aqueous dispersion of the core-shell particles. When the amount of Au NPs increases, closely packed, three-dimensionally arranged and close-packed Au NPs arrays are formed in the shells. Strong SERS signals from para-mercaptophenol adsorbed onto composite particles with multilayered Au NPs arrays are obtained by near-infrared (NIR) light illumination. A novel way of fabricating surface-enhanced Raman scattering (SERS)-active nanocomoposite particles is presented, which can be excited by near infrared (NIR) lights.

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KW - SERS

KW - plasmonics

KW - polymer particles

KW - self-organization

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Fabrication of NIR-excitable SERS-active composite particles composed of densely packed au nanoparticles on polymer microparticles

Abstract

Keywords

ASJC Scopus subject areas

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