标题: | 液态环境中以三氧化钨/氧化铱二极体元件为基础的阵列型葡萄糖感测器之研究 The Rasearch of Glucose Array Microsensor Based on WO3 and IrO2 Diode in Liquid State |
作者: | 林志强 Chin Chug Lin 赵书琦 Dr. Shuchi Chao 物理研究所 |
关键字: | 二极体;葡萄糖;感测器;新鲜度;diode;glucose;microsensor;fresh |
公开日期: | 1998 |
摘要: | 本论文所研究的阵列型葡萄糖感测器是利用先前发现的三氧化钨 / 氧化铱固态微型二极体元件以及葡萄糖氧化脢固定化薄膜的技术为基础,将二极体元件制作成阵列的形式。利用葡萄糖氧化脢固化薄膜中的葡萄糖氧化脢,会催化葡萄糖进行氧化反应并于过程中产生氢离子,藉以感测葡萄糖浓度。利用阵列的形式,使得阵列型葡萄糖感测器对葡萄糖浓度的空间梯度具有解析能力。 我们发现三氧化钨 / 氧化铱二极体元件是由热力学原理所驱动的,具有良好的可逆性以及电色效果,且能长时间工作于液态环境中。我们将二极体感测元件制作成阵列型式,并在其上覆盖一层葡萄糖氧化脢固化薄膜,利用三氧化钨 / 氧化铱二极体元件当氢离子注入时整流特性受到调变,来侦测葡萄糖浓度。实验发现,我们的阵列型葡萄糖感测器,对于葡萄糖有显着和稳定的感测能力,且能成功解析葡萄糖浓度的空间梯度。所以将来应能发展成为一种食品新鲜度感测器。 A glucose array microsensor based on the diode device 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 microsensor can be used to spatially resolved glucose concentration gradient. This diode 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 diode device. Each diode device in the array can function in sensing the glucose concentration individually to yield the glucose concentration gradient. Such glucose array microsensor is suitable for use in the determination of food freshness in the future. |
URI: | http://140.113.39.130/cdrfb3/record/nctu/#NT870198004 http://hdl.handle.net/11536/63955 |
显示于类别: | Thesis |