A near-infrared-fluorescence-quenched gold-nanoparticle imaging probe for in vivo drug screening and protease activity determination

Seulki Lee, Eui Joon Cha, Kyeongsoon Park, Seung Young Lee, Jin Ki Hong, In Cheol Sun, Sang Yoon Kim, Kuiwon Choi, Ick Chan Kwon, Kwangmeyung Kim, Cheol Hee Ahn

    Research output: Contribution to journalArticlepeer-review

    315 Citations (Scopus)

    Abstract

    (Figure Presented) Nanodiagnosis: A matrix-metalloproteinase (MMP) sensitive gold-nanoparticle (AuNP) imaging probe quenches conjugated near-infrared (NIR) dyes with high efficiency and is specifically activated by the target MMPs (see picture, left). With this system, nanomolar amounts of protease can be detected - both in vitro and in vivo. Experiments disclose an apparent positive contrast in MMPs-positive tumor-bearing mice (right).

    Original languageEnglish
    Pages (from-to)2804-2807
    Number of pages4
    JournalAngewandte Chemie - International Edition
    Volume47
    Issue number15
    DOIs
    Publication statusPublished - 2008 Mar 31

    Keywords

    • Cancer diagnosis
    • Drug screening
    • Fluorescent probes
    • Gold
    • Imaging agents

    ASJC Scopus subject areas

    • Catalysis
    • General Chemistry

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