Bioelectrochemical response of polypyrrole modified urease biosensor

被引：0
|
作者：
Cheng, FL [1 ]
Mo, JY
Dai, XY
机构：
[1] DongGuan Inst Technol, Dept Appl Chem, Dongguan 511700, Peoples R China
[2] Zhongshan Univ, Dept Chem, Guangzhou 510275, Peoples R China
[3] Hong Kong Univ Sci & Technol, Dept Biochem, Hong Kong, Peoples R China
来源：
ACTA POLYMERICA SINICA | 1999年 / 04期
关键词：
urea; urease; polypyrrole; biosensor;
D O I：
暂无
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Urease was doped into polypyrrole (PPy) film when pyrrole (Py) was polymerized by cyclic voltammogram. By Combination of PPy modified urease electrode and CO2 gas-sensitive electrode a bioelectrochemical, sensor was formed, which responses to urea. Factors affecting the activity of urease in PPy film were studied and activation energy of the ferment was determined. It was found that electrode potential is in direct proportion to the logarithm of the concentration of urea within the concentration range of 5.0 x 10(-5)similar to 1.0 x 10(-2) mol/L.
引用
收藏
页码：417 / 421
页数：5
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