Highly Sensitive and Selective Glucose Biosensing at Carbon Paste Electrodes Modified with Electrogenerated Magnetite Nanoparticles and Glucose Oxidase

被引：32

作者：

Comba, Fausto N. ^{[1
]}

Rubianes, Maria D. ^{[1
]}

Cabrera, Lourdes ^{[2
,3
]}

Gutierrez, Silvia ^{[3
]}

Herrasti, Pilar ^{[3
]}

Rivas, Gustavo A. ^{[1
]}

机构：

[1] Univ Nacl Cordoba, Fac Ciencias Quim, Dept Quim Fis, INFIQC, RA-5000 Cordoba, Argentina

[2] Univ Guanajuato, Guanajuato 369040, Mexico

[3] Univ Autonoma Madrid, Fac Ciencias, Dept Quim Fis Aplicada, SSIC, E-28049 Madrid, Spain

来源：

ELECTROANALYSIS | 2010年 / 22卷 / 14期

关键词：

Magnetite; Nanoparticles; Carbon paste electrode; Hydrogen peroxide; Glucose oxidase; Amperometric glucose biosensor; Biosensors; HYDROGEN-PEROXIDE; AMPEROMETRIC DETERMINATION; ENZYME ELECTRODES; GLASSY-CARBON; IMMOBILIZATION; COPPER; CODEPOSITION; TRANSDUCER; IRIDIUM; SENSORS;

D O I：

10.1002/elan.200900566

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

This work reports the advantages of carbon paste electrodes modified with electrogenerated magnetite nanoparticles. The nanoparticles present catalytic activity towards hydrogen peroxide reduction. The incorporation of glucose oxidase (GOx) and magnetite in a carbon paste matrix have made possible the development of an efficient glucose biosensor. The effect of the amount of GOx and magnetite present in the composite on the response of the biosensor was critically evaluated. The biosensors demonstrated to be highly selective, with negligible interference of ascorbic acid and uric acid. The proposed biosensor was challenged with human blood serum demonstrating an excellent correlation with the spectrophotometric method.

引用

页码：1566 / 1572

页数：7

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