Development of a Multiple Biosensor and its Application of Biofuel Cell

作者：Yang Cheng Yu^*; Tsai Tsung Hsuan; Chen Shen Ming; Lou Bih Show; Liu Xiaoheng

来源：International Journal of Electrochemical Science, 2015, 10(1): 579-588.

• Gold nanoparticles
• multi-walled carbon nanotube
• glucose
• electrocatalysis
• dissolved oxygen
• biofuel cell

The gold nanoparticles (GNP) and functionalized carbon nanotube (f-CNT) film (GNP-f-CNT) was prepared on glassy carbon electrode (GCE) by multiple scan cyclic voltammetry. The glucose oxidase (GOx) was physical adsorbed on the GNP-f-CNT film surface. The electrochemical measurements and surface morphology of the as-prepared films were studied using field emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD). The proposed film were demonstrated for the determination of dissolved oxygen using linear sweep voltammetry (LSV) and rotating disk electrode voltammetry (RDE). The proposed electrodes for the construction of biofuel cell (BFC) was achieved up to 22.6 mu W cm(-2), and worked well as a biosensor for both glucose and dissolved oxygen with high sensitivity of 281.86 mu A mM(-1) cm(-2) and 205.73 mu A L mg(-1) cm(-2), respectively. The proposed protocol for synthesizing the GOx/GNP-f-CNT bionanocomposite is simple, convenient and fast in operation, which is expected to find wide biosensing and bioelectronic applications.

• 出版日期2015-1
• 单位南京大学