Non-Enzymatic Glucose Biosensor Based on CuO-Decorated CeO₂ Nanoparticles.
Copper oxide (CuO)-decorated cerium oxide (CeO₂) nanoparticles were synthesized and used to detect glucose non-enzymatically. The morphological characteristics and structure of the nanoparticles were characterized through transmission electron microscopy, X-ray photoelectron spectroscopy, and X-ray diffraction. The sensor responses of electrodes to glucose were investigated via an electrochemical method. The CuO/CeO₂ nanocomposite exhibited a reasonably good sensitivity of 2.77 μA mM-1cm-2, an estimated detection limit of 10 μA, and a good anti-interference ability. The sensor was also fairly stable under ambient conditions.
Department of Materials Science, Taiyuan University of Technology, Taiyuan 030024, China. ddwhlw1980@sohu.com.
Panpan
P
Guan
Department of Materials Science, Taiyuan University of Technology, Taiyuan 030024, China. leeyj2015@163.com.
Yongjian
Y
Li
Department of Materials Science, Taiyuan University of Technology, Taiyuan 030024, China. sunxuejia@tyut.edu.cn.
Jie
J
Zhang
Department of Materials Science, Taiyuan University of Technology, Taiyuan 030024, China. liwei03@tyut.edu.cn.
Wei
W
Li
biosensor; cerium oxide; copper oxide; glucose; nanocomposite