An amperometric non-enzymatic glucose sensor by electrodepositing copper nanocubes onto vertically well-aligned multi-walled carbon nanotube arrays

作者：Yang Jiang; Zhang Wei De; Gunasekaran Sundaram^*

来源：Biosensors and Bioelectronics, 2010, 26(1): 279-284.

DOI：10.1016/j.bios.2010.06.014

• Carbon nanotube
• Copper nanocube
• Electrodeposition
• Glucose sensor
• Non-enzymatic

A non-enzymatic glucose (Glc) sensor was developed by potentiostatically electrodepositing metallic Cu nanocubes from a precursor solution onto vertically well-aligned multi-walled carbon nanotube arrays (MWCNTs). The electrochemical characteristics of the sensor were studied by electrochemical Impedance spectroscopy (EIS) and cyclic voltammetry (CV) The sensor shows significantly higher electiocatalytic activity to the oxidation of Glc in 0.1 M NaOH alkaline solution after modification of Cu nanocubes than before. The sensor response is rapid (<1 s) and highly sensitive (1096 mu A mM(-1) cm(-2)) with a wide linear range (up to 7.5 mM) and low detection limit (1 0 mu M at signa

• 出版日期2010-9-15
• 单位华南理工大学