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Synthesis of Near-Infrared Emitting Naphthalimide Dyes
L. Duan, Y. Xu, X. Qian*, Y. Zhang, Y. Liu
East China University of Science and Technology, Shanghai, P. R. of China
23 March 2009 (online)
Near-infrared (NIR) emitting dyes are of interest for biological applications, as most biological analytes neither absorb nor fluoresce in that region, leading to greater sensitivity. The authors report the synthesis of two novel NIR dyes based on an interesting photochemical cyclization of naphthalimide derivatives, and the use of one of the dyes in imaging Chinese hamster cells.