title: Polyglycerol-Dendronized Perylenediimides as Stable, Water-Soluble Fluorophores.
abstract: The synthesis and photophysical properties of water-soluble, fluorescent polyglycerol-dendronized perylenediimides1-4are reported. The polyglycerol dendrons, which are known to be highly biocompatible, are found to confer high water-solubility on the perylenediimide in aqueous media while retaining its excellent fluorescent properties. Furthermore, intramolecular cross-linking of the polyglycerol dendrons using the ring-closing metathesis reaction not only enhances the photostability but also reduces the size of perylenediimide-cored dendrimers. The permeability of the various dendritic shells is probed using heavy metal ion quenchers and compared to non-dendritic but water-soluble perylenediimide5.
authors: Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (USA).
authors: Si Kyung
authors: SK
authors: Yang
authors: Steven C
authors: SC
authors: Zimmerman
keywords: cross-linking; dendrimer; perylenediimide; photostability; polyglycerol