Sensor and biosensor based on Prussian Blue modified gold and platinum screen printed electrodes

被引：115
作者：
de Mattos, IL [1 ]
Gorton, L [1 ]
Ruzgas, T [1 ]
机构：
[1] Lund Univ, Dept Analyt Chem, S-22100 Lund, Sweden
来源：
BIOSENSORS & BIOELECTRONICS | 2003年 / 18卷 / 2-3期
基金：
巴西圣保罗研究基金会;
关键词：
Prussian Blue; screen-printed electrodes; amperometric sensor; biosensor;
D O I：
10.1016/S0956-5663(02)00185-9
中图分类号：
Q6 [生物物理学];
学科分类号：
071011 ;
摘要：
Gold (An) and platinum (Pt) screen-printed electrodes were modified with Prussian Blue (PB) for the development of amperometric sensors selective for hydrogen peroxide detection. The sensors exhibited sensitivities towards H2O2 equal to 2 A M-1 cm(-2) for An and 1 A M-1 cm(-2) for Pt electrodes. The sensors were also employed as the basis for construction of glucose biosensors through further modification with crystallised glucose oxidase immobilised in a Nafion membrane. In order to improve the operational stability of the modified electrodes a buffer solution containing tetrabutylammonium toluene-4-sulfonate was used. The long-term performance of the sensors and biosensors were evaluated by continuous monitoring of hydrogen peroxide and glucose solutions (50 muM and 1 mM, respectively) in the flow-injection mode for 10 h. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：193 / 200
页数：8
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