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 journalArticlepeer-review

    3 Citations (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 - 2019

    ASJC Scopus subject areas

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

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