Unexpected fluorescent behavior of a 4-amino-1,8-naphthalimide derived β-cyclodextrin: conformation analysis and sensing properties

摘要

A new fluorescent cyclodextrin shows unexpected and strong fluorescence enhancement upon binding of organic molecules, and the enhancing mechanism is found to be different from those reported in the literature.rnCyclodextrins (CDs) are a group of naturally occurring cyclic oligomers of D-glueopyranose. They form inclusion complexes with a variety of organic compounds in aqueous solution, driven by hydrophobic interaction between the CD cavity and guest molecule. Many chromophore-modified CDs have been reported as chemosensors.