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On the surface of a quantum dot (QD), maltose-binding protein (MBP, white and yellow in Figure) labeled with a cyanine dye (red) self-assembles, resulting in F? rster resonance energy transfer between the acceptor dye and the QD donor. Upon binding maltose, MBP undergoes a conformational change (white ⇌ yellow), causing concentration-dependent photoluminescence changes. Supporting information for this article is available on the WWW under http: //www. wiley-vch. de/contents/jc₂089/2005/c0722ₛ. pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
Medintz et al. (Tue,) studied this question.
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