Developing Mn-doped lead sulfide quantum dots for MRI labels

Turyanska, Lyudmila, Moro, Fabrizio, Patanè, Amalia , Barr, James, Köckenberger, Walter, Taylor, Alexander, Faas, Henryk M., Fowler, Maxine, Wigmore, Peter, Trueman, Rebecca C., Williams, Huw E. L. and Thomas, Neil R. (2016) Developing Mn-doped lead sulfide quantum dots for MRI labels. Journal of Materials Chemistry B, 42 . pp. 6797-6802. ISSN 2050-7518

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Magnetic interactions of Mn2+ ions in lead sulfide (PbS) nanocrystals with protons in water are probed by NMR and MRI. A thin layer of capping molecules enables free solvent diffusion to the nanocrystal surface resulting in a decrease of proton relaxation times. Magnetic resonance imaging of neuronal cell pellets exposed to (PbMn)S at non-toxic concentrations demonstrates their prospects as MRI-labels.

Keywords:colloidal nanocrystals, imaging, magnetic doping, JCOpen
Subjects:F Physical Sciences > F100 Chemistry
Divisions:College of Science > School of Chemistry
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ID Code:24740
Deposited On:18 Oct 2016 19:28

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