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Bioinspired Formation of 3D Hierarchical CoFe2O4 Porous Microspheres for Magnetic-Controlled Drug Release
journal contribution
posted on 2015-01-21, 00:00 authored by Bin Cai, Minggang Zhao, Ye Ma, Zhizhen Ye, Jingyun HuangBioinspired
by the morphology of dandelion pollen grains, we successfully prepared
a template-free solution-based method for the large-scale preparation
of three-dimensional (3D) hierarchical CoFe2O4 porous microspheres. Besides, on the basis of the effect of the
reaction time on the morphology evolution of the precursor, we proposed
an in situ dissolution–recrystallization growth mechanism with
morphology and phase change to understand the formation of dandelion
pollenlike microspheres. Doxorubicin hydrochloride, an anticancer
drug, is efficiently loaded into the CoFe2O4 microspheres. The magnetic nanoparticles as field-controlled drug
carriers offer a unique power of magnetic guidance and field-triggered
drug-release behavior. Therefore, 3D hierarchical CoFe2O4 porous microspheres demonstrate the great potential
for drug encapsulation and controlled drug-release applications.