Department of Chemistry
Spontaneous deposition of Prussian blue on reduced graphene oxide – gold nanoparticles composites for the fabrication of electrochemical biosensors
© 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.
Biosensors, Composite materials, Prussian blue, Reduced graphene oxide, Spontaneous deposition
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Link to Publisher's Edition
Bai, Xiaoyun, and Kwok-Keung Shiu. "Spontaneous deposition of Prussian blue on reduced graphene oxide – gold nanoparticles composites for the fabrication of electrochemical biosensors." Electroanalysis 27.1 (2015): 74-83.