High performance magneto-fluorescent nanoparticles assembled from terbium and gadolinium 1,3-diketones.

ABSTRACT: Polyelectrolyte-coated nanoparticles consisting of terbium and gadolinium complexes with calix[4]arene tetra-diketone ligand were first synthesized. The antenna effect of the ligand on Tb(III) green luminescence and the presence of water molecules in the coordination sphere of Gd(III) bring strong luminescent and magnetic performance to the core-shell nanoparticles. The size and the core-shell morphology of the colloids were studied using transmission electron microscopy and dynamic light scattering. The correlation between photophysical and magnetic properties of the nanoparticles and their core composition was highlighted. The core composition was optimized for the longitudinal relaxivity to be greater than that of the commercial magnetic resonance imaging (MRI) contrast agents together

SUBMITTER: Zairov R 

PROVIDER: S-EPMC5238420 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature