Conductometric uric acid and urea biosensor prepared from electroconductive polyaniline-poly(n-butyl methacrylate) composites

被引：100

作者：

Castillo-Ortega, MM

Rodriguez, DE

Encinas, JC

Plascencia, M

Méndez-Velarde, FA

Olayo, R

机构：

[1] Univ Sonora, Dept Invest Polimeros & Mat, Hermosillo 83000, Sonora, Mexico

[2] Hosp Infantil Estado Sonora, Div Ginecoobstet, Hermosillo 83000, Sonora, Mexico

[3] Univ Autonoma Metropolitana Iztapalapa, Dept Fis, Mexico City 09340, DF, Mexico

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2002年 / 85卷 / 1-2期

关键词：

polyaniline; composites; electroconductive polymers; uric acid sensor; urea sensor;

D O I：

10.1016/S0925-4005(02)00045-X

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Polyaniline-poly(n-butyl methacrylate) (PAn-PBMA) composite films were obtained by casting. The homogeneous films were prepared with poly(vinyl methyl ether) (PVME) and poly(vinyl ethyl ether) (PVEE) as dispersants, and the electric conductivity, mechanical properties and morphology were studied. The PAn integration to the composite is better when PVEE is used as dispersant, but the conductivity is higher when PVME is used. The composites with PVME were tested as chemical sensors for H2O2 and NH3, showing good performance. These samples were also tested as biosensor for urea and uric acid using urease and uricase enzymes, respectively. The best results were as chemical sensor for H2O2, NH3, and as biosensors for serum urea determination. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：19 / 25

页数：7

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