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Synthesis of Supramolecular Nanocapsules Based on Threading of Multiple Cyclodextrins over Polymers on Gold Nanoparticles |
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| Authors: | Yun‐Long Wu Jun Li Prof. Dr. |
| Affiliation: | 1. Division of Bioengineering, Faculty of Engineering, National University of Singapore, 7 Engineering Drive 1, Singapore 117574 (Singapore), Fax: (+65)?6872‐3069, http://www.bioeng.nus.edu.sg/people/lijun;2. Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 3 Research Link, Singapore 117602 (Singapore) |
| Abstract: | 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.  |
| Keywords: | cyclodextrins inclusion compounds nanoparticles rotaxanes supramolecular chemistry |