A Glucose Biosensor Based on Nanographene and ZnO Nanoparticles Using FFT Continuous Cyclic Voltammetry

作者：Norouzi Parviz^*; Ganjali Hamed; Larijani Bagher; Ganjali Mohammad Reza; Faridbod Farnoush; Zamani Hassan Ali

来源：International Journal of Electrochemical Science, 2011, 6(11): 5189-5199.

DOI：10.1016/s1452-3981(23)18398-2

• Glucose
• Biosensor
• Nanographene
• ZnO nanoparticles
• FFT Cyclic voltammetry
• Flow injection System

In this work, a new glucose electrochemical biosensor was made based on immobilization of glucose oxidase (GOx) on zinc oxide nanoparticles (ZnO NPs) doped in nanographene (NGs) sheets. A glassy carbon electrode was used as a transducer of the biosensor and Fast Fourier transformation continuous cyclic voltammetry (FFTCCV) was used as detection method in a flow injection system. Effect of scan rate, solution flow rate and buffer pH were modified. The results show that the linear response range of the biosensor was between 0.1 to 20 mu M and the detection limit was calculated 0.02 mu M at a signal-to-noise ratio of 3. The proposed biosensor showed an acceptable reproducibility, good stability and low interferences.

• 出版日期2011-11