Glucose Diode Array Microsensor Based on WO3 and IrO2

• Main Authors: Shieh, Shuen-Han, 謝學瀚
• Other Authors: Chao, Shu-Chi
• Format: Others
• Language: zh-TW
• Published: 1998
• Online Access: http://ndltd.ncl.edu.tw/handle/19464724716158366973

碩士 === 國立交通大學 === 電子物理系 === 86 === A glucose diode array microsensor based on the contacts of WO3 / IrO2 sputtered thin films and glucose oxidase ( GOD ) immobilized in a solid polymer layer is constructed. Due to diode array structure, the device can be used to spatially resolved glucose concentration gradient. This device makes use of the catalysis action of GOD. Glucose is selectively oxidized in the reaction to generate H+ that can reduce current in forward direction in the microdiode. Each diode in the array can function in sensing the glucose concentration individually to yield the glucose concentration gradient. Such glucose diode array microsensor is suitable for use in the determination of food freshness.