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Triazine pyridinium derivative supramolecular cascade assembly extended FRET for two-photon NIR targeted cell imaging
Xuan Zhao1, Xiaolu Zhou1, Wen-Wen Xing1
1College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China. yuliu@nankai.edu.cn.
Abstract:
A triazine pyridinium derivative (TAZpy) was encapsulated into the cavity of a cucurbit[7]uril and further assembled with sulfonatocalix[4]-arene, hyaluronic acid and commercial dyes, which not only achieved fluorescence cascade enhancement and an effective FRET process based on macrocyclic confinement, but was also applied in two-photon NIR targeted cell imaging.
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