Interaction potential surface between Raman scattering enhancing nanoparticles conjugated with a functional copolymer

Takeshi Morita, Yuki Ogawa, Hiroshi Imamura, Kouki Ookubo, Nobuo Uehara, Tomonari Sumi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A novel Raman scattering enhancement was discovered using colloid nanoparticles conjugated with an amine-based copolymer. The interaction potential surface between Raman scattering enhancing nanoparticles was clarified by combining a small-angle scattering method and a model-potential-free liquid-state theory as an in situ observation in the solution state. The potential surface indicates that the most stable position is located around 0.9 nm from the particle surface, suggesting the existence of a nanogap structure between the nanocomposites. The change in Raman scattering enhancement was also acquired during the dispersion process of the aggregated nanocomposites through a glutathione-triggered nanosensing reaction.

Original languageEnglish
Pages (from-to)16889-16894
Number of pages6
JournalPhysical Chemistry Chemical Physics
Volume21
Issue number31
DOIs
Publication statusPublished - Jan 1 2019

Fingerprint

Raman scattering
copolymers
Copolymers
Raman spectra
Nanoparticles
nanoparticles
Nanocomposites
nanocomposites
glutathione
augmentation
Colloids
interactions
Amines
Glutathione
colloids
amines
Scattering
Liquids
liquids
scattering

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Interaction potential surface between Raman scattering enhancing nanoparticles conjugated with a functional copolymer. / Morita, Takeshi; Ogawa, Yuki; Imamura, Hiroshi; Ookubo, Kouki; Uehara, Nobuo; Sumi, Tomonari.

In: Physical Chemistry Chemical Physics, Vol. 21, No. 31, 01.01.2019, p. 16889-16894.

Research output: Contribution to journalArticle

Morita, Takeshi ; Ogawa, Yuki ; Imamura, Hiroshi ; Ookubo, Kouki ; Uehara, Nobuo ; Sumi, Tomonari. / Interaction potential surface between Raman scattering enhancing nanoparticles conjugated with a functional copolymer. In: Physical Chemistry Chemical Physics. 2019 ; Vol. 21, No. 31. pp. 16889-16894.
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