Laser-induced deposition of gold nanoparticles and its applications to analytical sciences

Sunao Yamada

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Pulsed-laser irradiation of thiol-passivated gold nanoparticles in cyclohexane resulted in a rapid agglomeration and fusion of gold nanoparticles due to a partial desorption of immobilized thiol molecules. At the same time, a patterned deposition of gold nanoparticle corresponding to the shape of the laser spot was found on the surface of a substrate that was immersed into a colloidal solution. In order to extend this phenomenon to practical and analytical applications, some basic investigations, spectroscopic studies for elucidating the deposition mechanism and the effects of a surface modification of the glass plate were carried out. It was found that the quantity and size of the deposited gold nanoparticles were dramatically changed only by a partial replacement of the immobilized dodecanethiol with 1,6-hexanedithiol, and were also dependent on the wavelength and the power of the laser light. Independently, laser-induced patterned deposition was carried out onto a glass plate and a membrane filter, and subsequent electroless copper plating catalyzed by the deposited gold nanoparticles, and applications to surface plasmon resonance sensing and surface-enhanced vibrational spectrometry have been successful.

Original languageEnglish
Pages (from-to)801-810
Number of pages10
Journalbunseki kagaku
Volume57
Issue number10
DOIs
Publication statusPublished - Nov 24 2008

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Gold
Nanoparticles
Lasers
Sulfhydryl Compounds
Copper plating
Glass
Electroless plating
Surface plasmon resonance
Laser beam effects
Pulsed lasers
Spectrometry
Surface treatment
Desorption
Fusion reactions
Agglomeration
Membranes
Wavelength
Molecules
Substrates

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry

Cite this

Laser-induced deposition of gold nanoparticles and its applications to analytical sciences. / Yamada, Sunao.

In: bunseki kagaku, Vol. 57, No. 10, 24.11.2008, p. 801-810.

Research output: Contribution to journalArticle

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