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Synthesis of supramolecular nanocapsules based on threading of multiple cyclodextrins over polymers on gold
1Division of Bioengineering, Faculty of Engineering, National University of Singapore, 7 Engineering Drive 1, Singapore 117574, Singapore.
Abstract:
The CD's stuck: Poly(ethylene glycol) chains anchored onto gold nanoparticles (AuNPs) are threaded by multiple alpha-cyclodextrin (alpha-CD) rings to form a supramolecular outer layer composed of pseudopolyrotaxane columns perpendicular to the nanoparticle surface. Capping the polymer ends confines alpha-CD on the nanoparticle surface, cross-linking the alpha-CD rings and then removing the AuNP cores produces supramolecular nanocapsules.
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