One-Step Hydrothermal Synthesis of CuO Micro-Crystals for Non-Enzymatic Glucose Sensors

CuO micro-crystals have been synthesized by a one-step, large-scale and environment-friendly hydrothermal route. The crystalline structure, morphology, valence state and elemental composition of the CuO micro-crystals were analyzed using different technologies. Cyclic voltammetry and chronoamperometry were studied to probe the electrochemical glucose oxidation properties of the CuO electrode, revealing excellent electrocatalytic performance with fast response time, low detection limit and applicable linear detection range. In addition, it shows good selectivity to glucose when there are interferences coexisting in the human blood. All these results imply the potential application of the sample as electrode materials of non-enzymatic glucose sensors.

Automated summary

CuO micro-crystals were synthesized by a large-scale and environmentally friendly hydrothermal route. The CuO electrode exhibited excellent electrocatalytic performance for glucose oxidation, with fast response time, low detection limit, and applicable linear detection range. It also demonstrated good selectivity to glucose in the presence of interferences in human blood.