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A new type of purely organic light-harvesting PET supramolecular assembly is constructed with efficient energy transfer and ultrahigh antenna effect. Moreover, the assembly could be used for mitochondria targeted imaging in A549 cancer cells.

A photochromic pseudo[3]rotaxane exhibited chirality transfer and FRET abilities was constructed. The transferred chiral signals could be controlled by UV light and heating, which will provide deep insight into developing chiral advanced materials.

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A novel supramolecular polypseudorotaxane was successfully constructed with pseudo[3]­rotaxanes between pyridine-2,6-dicarboxylic acid imidazolium (G1) and cucurbit[8]­uril (CB[8]) and the subsequent coordination with lanthanide ions. Significantly, compared with the pyridine-2,6-dicarboxylic acid imidazolium complex G1@Tb3+, CB[8]-mediated polypseudorotaxane CB[8]@G1 2 @Tb3+ not only displayed enhanced lanthanide luminescence behavior with a 29.1-fold time enhancement (from 45.76 μs to 1.33 ms) of the excited-state lifetime (τ) and a 8.7-fold increase (from 0.89% to 7.81%) in the quantum yield (Φ) but also exhibited a specific fluorescence response to antibiotics in an aqueous solution and a solid film.