Xuan Zhao, Xiaolu Zhou, Wen-Wen Xing and Yu Liu
Chem. Commun., 2023,59, 11516-11519
DOI:
10.1039/D3CC03487A,
Communication
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.