期刊
ANALYTICAL CHEMISTRY
卷 85, 期 21, 页码 10448-10454出版社
AMER CHEMICAL SOC
DOI: 10.1021/ac402925r
关键词
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资金
- Priority Research Centers Program through the National Research Foundation (NRF) of Korea [2009-0094031]
- Ministry of Education
Inkjet-printed copper oxide nanoparticles (CuO NPs) on silver electrodes were used to fabricate the nonenzymatic glucose biosensor. The inkjet-printed CuO NPs electrodes produced high and reproducible sensitivity of 2762.5 mu Am M-1 cm(-2) at an applied potential of +0.60 V with the wide linear-detecting range of 0.05-18.45 mM and the detection limit of similar to 0.5 mu M (S/N = 3). The long-term stability and reproducibility of sensor in glucose electro-oxidation resulted from the chemical stability of CuO NPs and pore-like structure formed on Ag surface, which prevented the CuO NPs from conglomeration and the interference of oxygen in the air. Significantly, the effect of interfering species, such as AA, UA, and DA were negligible, whereas sugar derivatives (lactose, fructose, and mannose) show insignificant interference. Finally, the electrode was applied to analyze glucose concentration in human serum samples.
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