Crosslinked Capsules of Quantum Dots by Interfacial Assembly and Ligand Crosslinking


  • The authors acknowledge financial support for this work from the National Science Foundation (CAREER CHE-0239486), the Department of Energy (DE-FG02-04ER46126), the Army Research Laboratory through a MURI Award (W911 NF-04–1–0191), and a gift from the Eastman Kodak Company.


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Robust crosslinked capsules are produced from water droplets stabilized by oil/water interfacial assembly of norbornene-functionalized CdSe/ZnS core–shell quantum dots that can be crosslinked by ring-opening metathesis polymerization (see Figure). The mechanical integrity of the capsules is maintained after removal of the interface. An amphiphilic polyethylene glycol-substituted ruthenium benzylidene catalyst proved ideal for this interfacial polymerization.