Immobilization of gold nanoparticles on optical waveguides with organosilane monolayer

Takuya Nakanishi, Harumi Takada, Hironori Iida, Mayuki Kajiura, Tetsuya Osaka

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Synthesis of Au nanoparticles (NPs) and their immobilization on optical waveguide (OWG) made of quartz plate were carried out aiming at application to sensing. Au NPs with diameters of ∼5 nm and ∼20 nm were synthesized by reduction of tetrachloroaurate ions with borohydride and immobilized on quartz OWG coated with monolayer of organosilane. With the OWG spectroscopy, the surface plasmon absorption of the Au NPs immobilized on OWG was suggested to be influenced by the particle size and the interparticle distance and to response to the refractive index of nanoparticle proximity sensitively.

Original languageEnglish
Pages (from-to)234-238
Number of pages5
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume313-314
DOIs
Publication statusPublished - 2008 Feb 1

Fingerprint

Optical waveguides
immobilization
optical waveguides
Gold
Monolayers
gold
Nanoparticles
nanoparticles
Quartz
quartz
Borohydrides
borohydrides
proximity
Refractive index
Particle size
Spectroscopy
Ions
refractivity
synthesis
spectroscopy

Keywords

  • Gold nanoparticle
  • Immobilization
  • Optical waveguide spectroscopy
  • Surface plasmon resonance

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Physical and Theoretical Chemistry

Cite this

Immobilization of gold nanoparticles on optical waveguides with organosilane monolayer. / Nakanishi, Takuya; Takada, Harumi; Iida, Hironori; Kajiura, Mayuki; Osaka, Tetsuya.

In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 313-314, 01.02.2008, p. 234-238.

Research output: Contribution to journalArticle

Nakanishi, Takuya ; Takada, Harumi ; Iida, Hironori ; Kajiura, Mayuki ; Osaka, Tetsuya. / Immobilization of gold nanoparticles on optical waveguides with organosilane monolayer. In: Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2008 ; Vol. 313-314. pp. 234-238.
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