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A unique rectilinearly π-extended rhodamine dye with large Stokes shift and near-infrared fluorescence for bioimaging
Chang Liu1, Xiaojie Jiao, Qing Wang
1Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin 300384, China. xshzeng@tjut.edu.cn.
Chemical Communications (Cambridge, England)
|September 19, 2017
Abstract:
The synthesis of a novel rectilinearly π-extended rhodamine dye (TJ730) has been described. It exhibits NIR fluorescence emission with a Stokes shift of >110 nm. TJ730 and its ester derivative are cell permeable, have low cytotoxicity, are biocompatible, and can be directly used as NIR tracers for lysosome staining. Using TJ730 as a precursor, two probes have been prepared for Cu2+.
