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
APA Citation
Bai, X., & Shiu, K. (2015). Spontaneous deposition of Prussian blue on reduced graphene oxide – gold nanoparticles composites for the fabrication of electrochemical biosensors. Electroanalysis, 27 (1), 74-83. https://doi.org/10.1002/elan.201400358