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Synthesis of Supramolecular Nanocapsules Based on Threading of Multiple Cyclodextrins over Polymers on Gold Nanoparticles
Author(s) -
Wu YunLong,
Li Jun
Publication year - 2009
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200805341
Subject(s) - colloidal gold , nanocapsules , ethylene glycol , nanoparticle , supramolecular chemistry , materials science , polymer , cyclodextrin , nanotechnology , supramolecular polymers , polymer chemistry , threading (protein sequence) , nanostructure , chemical engineering , chemistry , crystallography , organic chemistry , crystal structure , composite material , biochemistry , protein structure , engineering
The CD ' s stuck : Poly(ethylene glycol) chains anchored onto gold nanoparticles (AuNPs) are threaded by multiple α‐cyclodextrin (α‐CD) rings to form a supramolecular outer layer composed of pseudopolyrotaxane columns perpendicular to the nanoparticle surface. Capping the polymer ends confines α‐CD on the nanoparticle surface, cross‐linking the α‐CD rings and then removing the AuNP cores produces supramolecular nanocapsules.