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首页> 外文期刊>Electroanalysis >Flexible ultrathin PolyDVB/EVB composite membranes for the optimization of a whole blood glucose sensor
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Flexible ultrathin PolyDVB/EVB composite membranes for the optimization of a whole blood glucose sensor

机译：柔性超薄PolyDVB / EVB复合膜，用于优化全血糖传感器

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摘要

An ultrathin composite membrane has been developed as the outer covering barrier in a model amperometric glucose oxidase enzyme electrode. The membrane was formed by cathodic electropolymerization of divinylbenzene/ ethylvinylbenzene at the surface of a gold coated polyester support membrane. Permeability coefficients were determined for O-2 and glucose across membranes with a range of polymer thicknesses. Anionic interferents (such as ascorbate), were screened from the working electrode via a charge exclusion mechanism. The enzyme electrode showed an initial 10% signal drift when first exposed to whole human blood over a period of 2 hours, after which responses remained essentially stable. Whole blood patient glucose determinations yielded a correlation coefficient of r(2)=0.99 compared to standard hospital analyses.
机译：已经开发出一种超薄复合膜作为模型电流型葡萄糖氧化酶电极中的外部屏障。该膜通过二乙烯基苯/乙基乙烯基苯在金涂覆的聚酯支撑膜的表面上的阴极电聚合而形成。确定了O-2和葡萄糖在一定范围的聚合物厚度下跨膜的渗透系数。通过电荷排除机制从工作电极中筛选出阴离子干扰物（例如抗坏血酸盐）。首次暴露于全人类血液2小时后，酶电极显示出最初的10％信号漂移，此后响应基本保持稳定。与标准医院分析相比，全血患者血糖测定的相关系数为r（2）= 0.99。

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