Lanthanide Luminescence Enhancement of Core-Shell Magnetite-SiO₂ Nanoparticles Covered with Chain-Structured Helical Eu/Tb Complexes.

ABSTRACT: Oligomeric-brush chains of helical lanthanide (Ln) complexes retain their structural and luminescent behavior after coating onto magnetic nanoparticles (MNPs) consisting of Fe₃O₄ covered with silicate. It is one of the type of bifunctional NPs exhibiting luminescence of Ln and superparamagnetism of Fe₃O₄. In comparison to a simple monolayer of complexes adsorbed on a modified surface, a layer made of luminescent chains allowed us to obtain a more intensive red/green luminescence originating from Eu³⁺/Tb³⁺ ions, and at the same time, no visible increase in particle size (compared to Fe₃O₄@silica particles) was observed. The luminescent properties of the Tb³⁺ complex were altered by MNPs; the d

SUBMITTER: Goderski S 

PROVIDER: S-EPMC7774089 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature