Non-Enzymatic Glucose Sensor Based on Copper Nanoparticles Modified Microelectrode

摘要

Copper nanoparticles (Cu_(nano)) were firstly electrodeposited on the surface of carbon fiber microelectrode (CFME) for construction of a non-enzymatic glucose sensor. The deposited interface possessed good stability and excellent catalytic activity for electro-oxidation of glucose. Prepared electrochemical sensor was characterized by voltammetry under different experimental conditions including deposition conditions, electrolyte and pH values. The results showed that this method was very simple and controllable. Moreover, the micro-sensor exhibited high performance including wide linearity and high sensitivity, which is better than most of other reported sensors. Finally, the glucose sensor was successfully applied to glucose analysis in rat serum.