Title :
Electrochemical properties of glucose biosensor: polypyrrole/glucose oxidase membrane
Author :
Kim, H.C. ; Gu, H.B.
Author_Institution :
Dept. of Electr. Eng., Chonnam Nat. Univ., Kwangju, South Korea
Abstract :
The glucose oxidase (GOD) has an effect on the redox properties of the host complex. In the voltammogram, the GOD brought on additional peaks around -0.8 V vs. Ag/AgCl. The pH of the solution during the potential swing decreased to 4.4. As the concentration of GOD increased, the anodic part of the new peaks increased. The GOD limits transport of the electrolyte anion because of its net chain. This caused large values for the faradic impedance of the complex in charge transfer. The concentration of GOD and the electrochemical coupling interact with each other
Keywords :
biochemistry; biosensors; charge exchange; conducting polymers; membranes; pH; proteins; voltammetry (chemical analysis); -0.8 V; Ag-AgCl; Ag/AgCl; anodic part; charge transfer; electrochemical coupling; electrochemical properties; electrolyte anion; faradic impedance; glucose biosensor; host complex; net chain; pH; polypyrrole/glucose oxidase membrane; potential swing; redox properties; voltammogram; Biochemistry; Biomembranes; Biosensors; Electrodes; Electrostatics; Impedance; Polymers; Spine; Sugar; Transducers;
Conference_Titel :
TENCON 99. Proceedings of the IEEE Region 10 Conference
Conference_Location :
Cheju Island
Print_ISBN :
0-7803-5739-6
DOI :
10.1109/TENCON.1999.818736
