Characterization and application of direct electron transfer of glucose oxidase at preanodized carbon electrodes

• Main Authors: Chi-Lun Hung, 洪啟倫
• Other Authors: 曾志明
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/03264947413821117713

碩士 === 國立中興大學 === 化學系所 === 95 === We present here a unique property of preanodized screen printed electrodes (SPCE*) that can drive direct electron transfer of glucose oxidase. When the enzyme is immobilized on the SPCE*, the enzyme is directly connected to the electrode by the oxidized functional groups which are generated by preanodization. The direct electron transfer of glucose oxidase can be applied in electroanalysis as well as energy generation. In electroanalysis, the advantage comes from the high selectivity of enzyme and the low detection potential of DET. In glucose biofuel cell application the DET of GOD in fabricating of electrode can work efficiently as anode in sugar/air battery. The application of DET of GOD is very convenient and the fabrication of electrode is cheap, it gets good sensitivity in electroanalysis and high performance in power generation. The biofuel cell generates an OCP of 0.6 V and a max. power density of ~ 150 μW/cm2.