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Yongqian Xu, Qin Liu, Bairui Dou, Brian Wright, Jingyun Wang and Yi Pang Zn2+ Binding-Enabled Excited State Intramolecular Proton Transfer: A Step toward New Near-Infrared Fluorescent Probes for Imaging Applications Advanced Healthcare Materials 1

Version of Record online: 11 MAY 2012 | DOI: 10.1002/adhm.201200025

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Using zinc binding to switch on the excited state intramolecular proton transfer (ESIPT) leads to a new fluorescent sensor (Zinhbo-5) which gives the desirable near-infrared emission (over 710 nm) with large Stokes shift (ca. 240 nm). The new probe is useful for imaging the intracellular Zn2+ ion in vivo, and for detecting zinc ions in neuromast of living zebrafish.

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