A new method for dispersing palladium microparticles in conducting polymer films and its application to biosensors

被引：50

作者：

Yamato, H ^{[1
]}

Koshiba, T ^{[1
]}

Ohwa, M ^{[1
]}

Wernet, W ^{[1
]}

Matsumura, M ^{[1
]}

机构：

[1] OSAKA UNIV,RES CTR PHOTOENERGET ORGAN MAT,TOYONAKA,OSAKA 560,JAPAN

来源：

SYNTHETIC METALS | 1997年 / 87卷 / 03期

关键词：

palladium; films; biosensors;

D O I：

10.1016/S0379-6779(97)80114-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Composite firms of polypyrrole/sulfated poly(beta-hydroxyethers) (PPy/S-PHE) are electrically conducting and mechanically flexible. Palladium particles were dispersed in the films by thermally decomposing bis(dibenzylideneacetone)palladium(0) complex which had been absorbed by the films from a CHCl3 solution. This method for loading metal particles was enabled by the high affinity of the composite films for organic compounds. Transmission electron microscopy (TEM) and energy-dispersive X-ray spectrometry (EDX) analyses revealed that fine palladium particles in the nanometer range are dispersed in the PPy/S-PHE conducting films. A glucose sensor based on the detection of hydrogen peroxide was prepared by immobilizing glucose oxidase (GOD) using glutaraldehyde on a Pd/PPy/S-PHE electrode. This biosensor responded to glucose even at 400 mV versus Ag/AgCl, which is lower than the working potential of conventional glucose sensors prepared on a platinum electrode.

引用

页码：231 / 236

页数：6

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