A supramolecular dye-capture system comprising anionic amidosquaraine guest and macrocyclic tetralactam host exhibits nanomolar affinity and "turn on" visible fluorescence. Utility is demonstrated with a new fluorescent assay for liposome leakage induced by the biomedically important enzyme phospholipase A.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8689413PMC
http://dx.doi.org/10.1039/d1cc05039gDOI Listing

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