Document Type

Journal Article

Department/Unit

Department of Chemistry

Title

Spontaneous deposition of Prussian blue on reduced graphene oxide – gold nanoparticles composites for the fabrication of electrochemical biosensors

Language

English

Abstract

© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.A reduced graphene oxide-gold nanoparticles-Prussian blue (RGO-AuNPs-PB) composite was prepared by spontaneous deposition of PB on RGO-AuNPs surface. The GC/RGO-AuNPs-PB modified electrode offered good electrocatalytic activity toward the reduction of hydrogen peroxide, indicating the possible synergistic effects of the RGO-AuNPs-PB composite material. Direct electron transfer of glucose oxidase (GOD) can be realized after codeposition of GOD and chitosan (CHIT) coating on GC/RGO-AuNPs-PB electrode. The resulting GC/RGO-AuNPs-PB/GOD-CHIT biosensor exhibited an excellent amperometric response to glucose with a sensitivity of 84mAM-1cm-2, and a linear range from 13μM to 2.0mM at +0.1V vs. Ag|AgCl reference.

Keywords

Biosensors, Composite materials, Prussian blue, Reduced graphene oxide, Spontaneous deposition

Publication Date

2015

Source Publication Title

Electroanalysis

Volume

27

Issue

1

Start Page

74

End Page

83

Publisher

Wiley-VCH Verlag

DOI

10.1002/elan.201400358

Link to Publisher's Edition

http://dx.doi.org/10.1002/elan.201400358

ISSN (print)

10400397

ISSN (electronic)

15214109

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