AN ELECTROCHEMICALLY GROWN POLYMER AS AN IMMOBILIZATION MATRIX FOR WHOLE CELLS - APPLICATION IN AN AMPEROMETRIC DOPAMINE SENSOR

被引:58
作者
DESHPANDE, MV [1 ]
HALL, EAH [1 ]
机构
[1] UNIV CAMBRIDGE,INST BIOTECHNOL,DOWNING ST,CAMBRIDGE CB2 3EF,ENGLAND
关键词
catecholamines; dopamine; immobilisation; polypyrrole; sensor; whole cell;
D O I
10.1016/0956-5663(90)80033-A
中图分类号
Q6 [生物物理学];
学科分类号
071011 ;
摘要
A method is described for the entrapment of whole banana cells in a polypyrrole film electrochemically deposited on a gold electrode. The polyphenol oxidase activity of the incorporated whole cells in the polymer was studied using dopamine as the major substrate. This amperometric-based probe was compared for the measurement of dopamine and related catecholamines. It exhibited high biocatalytic activity, good response time, favourable selectivity and reusability. © 1990.
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页码:431 / 448
页数:18
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