The influence of silver nanostructures formed in situ in silica sol-gel derived films on the rate of Förster resonance energy transfer

    Research output: Contribution to journalArticle

    Abstract

    The efficiency of Förster resonance energy transfer (FRET) can be enhanced in the presence of a metal. Herein, we demonstrate the increased efficiency for a novel model sensor system where FRET is shown to occur between Rhodamine 6G in the bulk sol-gel matrix and Texas Red, which is held a fixed distance away by covalent attachment onto a silane spacer. Silver colloids are formed using light to initiate the reduction of a silver salt, which can be achieved at controlled locations within the film. Both the fluorescence intensity and lifetime maps and analysis indicate that an enhanced FRET efficiency has been achieved in the presence of silver nanoparticles.
    Original languageEnglish
    Pages (from-to)535-541
    Number of pages7
    JournalChemPhysChem : a European Journal of Chemical Physics and Physical Chemistry
    Volume13
    Issue number2
    DOIs
    Publication statusPublished - Feb 2012

    Keywords

    • silver salt
    • model sensor system
    • silver nanoparticles

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