Photothermal reshaping of gold nanorods depends on the passivating layers of the nanorod surfaces

Yukichi Horiguchi, Kanako Honda, Yuichi Kato, Naotoshi Nakashima, Yasuro Niidome

    Research output: Contribution to journalArticlepeer-review

    80 Citations (Scopus)

    Abstract

    Photothermal reshaping of gold nanorods was triggered by pulsed-laser irradiation. The efficiency of the reshaping was strongly dependent on the surface conditions of the gold nanorods. When the gold nanorods were dispersed in concentrated hexadecyltrimethylammonium bromide (CTAB), the gold nanorods were efficiently transformed into a φ-shape. By comparison when poly(styrene sulfonate), poly(vinylpyrrolidone), poly(ethylene glycol), or phosphatidylcholine layers were used, the CTAB layers were found to be a better thermal insulator that helped to enhance the photothermal reshaping of the gold nanorods.

    Original languageEnglish
    Pages (from-to)12026-12031
    Number of pages6
    JournalLangmuir
    Volume24
    Issue number20
    DOIs
    Publication statusPublished - Oct 21 2008

    All Science Journal Classification (ASJC) codes

    • Materials Science(all)
    • Condensed Matter Physics
    • Surfaces and Interfaces
    • Spectroscopy
    • Electrochemistry

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