Fluorescent Supramolecular Assembly with Coronene Centers for Controlled DNA Condensation and Drug Delivery.
ACS omega(2019)
Abstract
A multifunctional supramolecular assembly was successfully constructed by the host-guest complexation of doubly positively charged adamantane (ADA) with β-CD-modified hexabenzocoronene and the π-stacking of coronene with mitoxantrone, which was characterized by transmission electron microscopy, scanning electron microscopy, dynamic light-scattering, and zeta potential experiments. Possessing a small size and rigid backbone coronene center, the water-soluble biocompatible supramolecular assembly has intracellular imaging abilities. Moreover, after the ester group of ADA was hydrolyzed into a carboxyl group, the positively charged quaternary amine strand converted into a zwitterion structure, which realized the controlled plasmid DNA binding and release. Besides, the cytotoxicity experiments showed that the supramolecular assembly possesses slightly lower toxicity and a slightly higher anticancer activity than free drug. We believe that this work might present a convenient method for synergetic cancer treatment.
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Key words
fluorescent supramolecular assembly,controlled dna condensation,coronene centers
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