Controlled synthesis of spinel ZnFe2O4 decorated ZnO heterostructures as peroxidase mimetics for enhanced colorimetric biosensing.

Minggang Zhao, Jingyun Huang, Yu Zhou, Xinhua Pan, Haiping He, Zhizhen Ye, Xiaoqing Pan

Index: Chem. Commun. (Camb.) 49(69) , 7656-8, (2013)

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Abstract

Controlled synthesis of spinel ZnFe2O4 nanoparticle-decorated ZnO nanofiber heterostructures was carried out with regularly varied particle sizes and uniform distribution. The obtained heterostructures possessed enhanced intrinsic peroxidase-like activity, and the activities regularly changed as the sizes of ZnFe2O4 nanoparticles varied. The heterostructures were further applied in sensitive colorimetric biosensing of urine glucose.