首页> 外文期刊>Journal of Applied Polymer Science >Covalent immobilization of glucose oxidase to Poly(O-Amino benzoic acid) for application to glucose biosensor
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Covalent immobilization of glucose oxidase to Poly(O-Amino benzoic acid) for application to glucose biosensor

机译:共价固定化葡萄糖氧化酶到聚(O-氨基苯甲酸)上,用于葡萄糖生物传感器

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摘要

A biosensor for glucose utilizing glucose oxidase (GOX) covalently coupled to poly(o-amino benzoic acid) (PAB; a carboxy-group-functionalized polyaniline) is described. Amperometric response measurements conducted via unmediated and mediated (with ferrocene carboxylic acid and tetrathiafulvalene) reoxidation of GOX show that glucose can be detected over a wide range of concentrations. An enzyme-conducting polymer-mediator model provides for better charge transport in a biosensor. The optimal response, obtained at pH 5.5 and 300 K, lies in the 1-40 mM range. A kinetic plot yields the value of the apparent Michaelis-Menten constant, K-m(app). The operational stability of the PAB-based glucose biosensor was experimentally determined to be about 6 days. (C) 2000 John Wiley & Sons. Inc. [References: 20]
机译:描述了一种用于葡萄糖的生物传感器,该传感器利用与聚(邻氨基苯甲酸)(PAB;羧基官能化的聚苯胺)共价偶联的葡萄糖氧化酶(GOX)。通过未介导的和介导的(用二茂铁羧酸和四硫富瓦烯)再氧化进行的安培响应测量表明,可以在很宽的浓度范围内检测到葡萄糖。酶传导聚合物介体模型可在生物传感器中提供更好的电荷传输。在pH 5.5和300 K下获得的最佳响应在1-40 mM范围内。动力学图得出表观米氏(Michaelis-Menten)常数K-m(app)的值。通过实验确定基于PAB的葡萄糖生物传感器的操作稳定性约为6天。 (C)2000 John Wiley&Sons。 Inc. [参考:20]

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