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Abstract
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The detection of glucose has important significance in the food industry and clinical
medicine, especially in the diagnosis of diabetes. In recent years, electrochemical nonenzymatic
glucose sensors have attracted intensive attention to detect the glucose level with
great progress. Up to now, different enzymatic glucose sensors are commonly used in
glucose detection. However, considering some intrinsic disadvantages of these sensors, such
as high fabrication cost and poor stability, non-enzymatic glucose sensors have attracted
increasing research interest [3,4]. Herein, the activity of iron oxide/copper oxide
heterostructure for glucose sensing was studied in KOH electrolyte by different
electrochemical methods. Experiments revealed that the Fe2O3/CuO shows high sensitivity of
317.9 mA cm-2 mM-1, a wide linear range (0-50 mM), along with high selectivity, and
applicability for glucose detection in real samples.
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