Label-free biosensor using polyion-modified gold nanorods adsorbed on a glass substrate

Kanako Honda, Hirofumi Kawazumi, Naotoshi Nakashima, Yasuro Niidome

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)

    Abstract

    Gold nanorods (NRs), which were modified with polyions, were fixed on polycation-modified glass substrates. Adsorption of antibodies and antigens on the glass substrates induced large peak shifts (44 nm) of longitudinal surface plasmon bands in the near-infrared region. The shifts were assignable to changes of refractive indices of polyion layers at the glass surfaces.

    Original languageEnglish
    Pages (from-to)992-993
    Number of pages2
    JournalChemistry Letters
    Volume39
    Issue number9
    DOIs
    Publication statusPublished - Sep 6 2010

    All Science Journal Classification (ASJC) codes

    • Chemistry(all)

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