基于蒸汽溶胶-凝胶法的碳纳米管/普鲁士蓝复合材料的制备及应用

Preparation of MWCNTs/PB Composite Material Modified Electrode with Vapor-surface Sol-gel Deposition

采用蒸汽溶胶-凝胶法将碳纳米管/普鲁士蓝(MWCNTs/PB)纳米复合材料固定于金电极表面,利用碳纳米管与普鲁士蓝纳米粒子间良好的协同效应,制备了用于检测过氧化氢的MWCNTs/PB复合修饰电极。进而在修饰电极表面固定葡萄糖氧化酶,制备了葡萄糖生物传感器。结果表明,该传感器对葡萄糖的响应快速、灵敏,且选择性好。该方法不仅拓展了蒸汽溶胶-凝胶技术的应用范围,还为研究协同效应提供了良好的模型体系。

A novel amperometric biosensor was fabricated by incorporation of MWCNTs/PB composite material modified gold electrode with a vapor deposition method. The modified electrode showed excellent catalytic activity for hydrogen peroxide,which combined the merits of the synergic catalysis effects of PB and MWCNTs. In addition,glucose oxidase（GOD） was immobilized on MWCNTs/PB modified electrode, and the glucose biosensor exhibited fast response time and high sensitivity. This method could widen the application area of sol - gel and provided a commendable model system for research the synergic catalysis effects.