McAdams S G, Lewis D J, McNaughter P D, Lewis E A, Haigh S J, O'Brien P, Tuna F
School Of Chemistry, University of Manchester, Oxford Road, M13 9PL, UK.
Chem Commun (Camb). 2017 Sep 21;53(76):10500-10503. doi: 10.1039/c7cc05537d.
Light emitting semiconducting quantum dots show great promise as solar cells, optoelectronic devices and multimodal imaging probes. Here we demonstrate successful grafting of a thiol-functionalised Gd MRI contrast agent onto the surface of core-multishell CdSe/CdS/ZnS quantum dots. The resulting nanoprobe exhibits intense photoluminescence and unprecedentedly large T relaxivity of 6800 mM s per nanoparticle due to secure implanting of ca. 620 magnetic centers per quantum dot unit.
