Chemical Communications 2012-11-25

Magnetic/upconversion luminescent mesoparticles of Fe3O4@LaF3:Yb3+, Er3+ for dual-modal bioimaging.

Lu Zhang, Ying-Shuai Wang, Yang Yang, Fan Zhang, Wen-Fei Dong, Sheng-Yan Zhou, Wei-Hua Pei, Hong-Da Chen, Hong-Bo Sun

Index: Chem. Commun. (Camb.) 48(91) , 11238-40, (2012)

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Abstract

Multifunctional magnetic/upconversion luminescent mesoparticles, consisting of a Fe(3)O(4) nanoparticle core and a LaF(3):Yb(3+), Er(3+) nanocrystal shell, have been developed using a facile co-precipitation approach. Owing to their excellent superparamagnetic properties, superior T(2)-enhanced magnetic resonance effect and strong upconversion emissions, the as-formed mesoparticles have great potential in diverse medical diagnostics and biological imaging.