普鲁士蓝修饰氧化铟锡电极电化学检测器的性能研究

2006 1st IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2006-01-01 DOI:10.1109/NEMS.2006.334771

I. Yi, Ju-Ho Kim, Y.J. Choi, C. Kang, Yong-Sang Kim

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引用次数: 0

摘要

研制了一种基于普鲁士蓝(PB)修饰氧化铟锡(ITO)电极的电流型生物传感器。通过改变沉积电压和沉积时间来控制PB膜的粗糙度，从而影响PB膜的电催化性能。采用原子力显微镜(AFM)测量了不同条件下沉积的PB膜的粗糙度。采用毛细管电泳(CE)方法使分析物通过聚二甲基硅氧烷(PDMS)制成的微通道。与使用裸ITO电极的传感器相比，使用PB修饰电极的传感器具有更好的灵敏度。此外，我们可以通过沉积更光滑的PB薄膜来提高传感器的检测限

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Performances of an Electrochemical Detector using Prussian blue modified Indium Tin Oxide Electrode

An amperometric biosensor based on Prussian blue (PB) modified indium tin oxide (ITO) electrode was developed. The roughness of PB film which affects the electrocatalytic properties of PB film was controlled by varying deposition voltage and time. Atomic force microscopy (AFM) was used to measure the roughness of PB films deposited under various conditions. We used capillary electrophoresis (CE) method to make the analytes flow through the micro channel made of polydimethylsilolxane (PDMS). Compared with sensor using bare ITO electrode, the sensor using PB modified electrode has shown better sensitivity. In addition, we could improve the detection limit of the sensor by depositing smoother PB film

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来源期刊

2006 1st IEEE International Conference on Nano/Micro Engineered and Molecular Systems

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