Dual-color imaging of sodium/calcium ion activities with twophoton fluorescent probes

Hyung Joong Kim, Ji Hee Han, Mi Kyung Kim, Chang Su Lim, Hwan Myung Kim, Bong Rae Cho

    Research output: Contribution to journalArticlepeer-review

    62 Citations (Scopus)

    Abstract

    A two-photon probe (BCaM) shows 14fold enhancement in two-photon emission fluorescence in response to Ca2+ and shows high sensitivity and selectivity for near-membrane Ca2+ ions (see picture). Combined with the known Na+ twophoton probe ANa1, BCaM allows simultaneous dual-color imaging of Ca2+/Na+ activities within live cells and in tissues at more than 100 μm depth for long time periods without photobleaching. (Figure Presented)

    Original languageEnglish
    Pages (from-to)6786-6789
    Number of pages4
    JournalAngewandte Chemie - International Edition
    Volume49
    Issue number38
    DOIs
    Publication statusPublished - 2010 Sept 10

    Keywords

    • Calcium
    • Fluorescence spectroscopy
    • Imaging agents
    • Live tissue
    • Two-photon microscopy

    ASJC Scopus subject areas

    • Catalysis
    • General Chemistry

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