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Journal of Nanomaterials
Volume 2014, Article ID 287303, 5 pages
http://dx.doi.org/10.1155/2014/287303
Research Article

Direct Growth of Copper Oxide Films on Ti Substrate for Nonenzymatic Glucose Sensors

School of Physics and Electronic Engineering, Nanyang Normal University, Nanyang 473061, China

Received 8 June 2014; Accepted 9 June 2014; Published 25 June 2014

Academic Editor: Xiang Wu

Copyright © 2014 Xiaoxu Ji et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Copper oxide (CuO) films directly grown on Ti substrate have been successfully prepared via a hydrothermal method and used to construct an amperometric nonenzymatic glucose sensor. XRD and SEM were used to characterize the samples. The electrochemical performances of the electrode for detection of glucose were investigated by cyclic voltammetry and chronoamperometry. The CuO films based glucose sensors exhibit enhanced electrocatalytic properties which show very high sensitivity (726.9 μA mM−1 cm−2), low detection limit (2 μM), and fast response (2 s). In addition, reproducibility and long-term stability have been observed. Low cost, convenience, and biocompatibility make the CuO films directly grown on Ti substrate electrodes a promising platform for amperometric nonenzymatic glucose sensor.