A Ratiometric Near-Infrared Fluorescent Probe for Hydrazine and Its in Vivo Applications
Organic Letters2013Vol. 15(15), pp. 4022–4025
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Chong Hu, Wen Sun, Jianfang Cao, Pan Gao, Jingyun Wang, Jiangli Fan, Fengling Song, Shiguo Sun, Xiaojun Peng
Abstract
Based on modulation of the conjugated polymethine π-electron system of a cyanine dye derivative, a ratiometric near-infared fluorescent probe (Cy7A) for hydrazine (N2H4) has been designed and synthesized. Cy7A can be selectively hydrazinolysized with great changes in its fluorescent excitation/emission profiles, which makes it possible to detect N2H4 in water samples and living cells and, for the first time, visualize N2H4 in living mice.