Sensing of oligopeptides using alternatively-deposited gold nanorods for surface-assisted laser desorption/ionization time-of-flight mass spectrometry

Masanori Fujii, Naotoshi Nakashima, Yasuro Niidome

    研究成果: Chapter in Book/Report/Conference proceedingConference contribution

    抄録

    Gold nanorods (NRs) were fixed on an ITO plate and used for the Surface-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry (SALDI-MS) of oligopeptides (angiotensin I). The SALDI-MS measurements had a high sensitivity to the angiotensin on the ITO plate on which isolated NRs were deposited. Angiotensin molecules in a very diluted solution (1 × 10 -11 M) could be detected at m/z = 1297 with a good signal/noise ratio (S/N = 18). In contrast, alternatively deposited NR an ITO plate, which present broad surface plasmon bands, was found to be inactive for SALDI measurements.

    本文言語英語
    ホスト出版物のタイトルGels and Biomedical Materials
    ページ145-149
    ページ数5
    DOI
    出版ステータス出版済み - 2012
    イベント2011 MRS Fall Meeting - Boston, MA, 米国
    継続期間: 11 28 201112 2 2011

    出版物シリーズ

    名前Materials Research Society Symposium Proceedings
    1418
    ISSN(印刷版)0272-9172

    その他

    その他2011 MRS Fall Meeting
    国/地域米国
    CityBoston, MA
    Period11/28/1112/2/11

    All Science Journal Classification (ASJC) codes

    • 材料科学(全般)
    • 凝縮系物理学
    • 材料力学
    • 機械工学

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