超分子可逆配位聚电解质组成的功能性聚离子复合囊泡【华东理工大学】

2019-10-30

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Functional Polyion Complex Vesicles enabled by Supramolecular Reversible Coordination Polyelectrolytes

Angew.Chem. 2019, 131,8582–8586

Author

Wenjuan Zhou, Jiahua Wang,Peng Ding,Xuhong Guo,Martien A. Cohen Stuart,* and Junyou Wang*
State Key Laboratory of Chemical Engineering and Shanghai Key Laboratory of Multiphase MaterialsChemical Engineering, East China University of Science and Technology 130 Meilong Road, Shanghai 200237 (P. R. China)

DOI

10.1002/anie.201903513

Abstract

Reported here is anew class of PICsomes (vesicles formed by polyelectrolyte complexation) in which the anionic/ neutral diblockcopolymer is replaced by an anionic, reversible,supramolecular polyelectrolyte based on metal–ligand coordination. This supramolecular polyelectrolyte forms exclusively inside the wall of the assembly,and therefore selfadjusts its length to that of the cationic blockp rovided. Moreover,t he supramolecular coordination polyelectrolytes introduce new and tunable properties and functions associated with the specific metal. As aproof-of-concept Mn-based PICsomes were prepared and displayhigh magnetic relaxivity, as well as enhanced contrast in in vitro magnetic resonance imagingtests.Thesimplicityof ourapproach,togetherwiththe new functions derived from the metal ions,demonstrates arobust strategy for the preparation of avariety of PICsomes with well-defined and tunable structures and properties. 

Keywords

self-assembly ·electrolytes ·micelles ·polymers · vesicles

Literature

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