Voltammetric aptasensor for sulfadimethoxine using a nanohybrid composed of multifunctional fullerene, reduced graphene oxide and Pt@Au nanoparticles, and based on direct electron transfer to the active site of glucose oxidase

2018 ◽  
Vol 186 (1) ◽  
Author(s):  
Huan You ◽  
Zhaode Mu ◽  
Min Zhao ◽  
Jing Zhou ◽  
Yongjie Chen ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Graphene Oxide ◽  
Glucose Oxidase ◽  
Reduced Graphene Oxide ◽  
Active Site ◽  
Au Nanoparticles ◽  
Direct Electron Transfer ◽  
Reduced Graphene

Construction of a multi-interfacial-electron transfer scheme for efficient CO2 photoreduction: a case study using CdIn2S4 micro-flower spheres modified with Au nanoparticles and reduced graphene oxide

2020 ◽  
Vol 8 (36) ◽  
pp. 18707-18714 ◽  
Author(s):  
Xin Li ◽  
Haopeng Jiang ◽  
Changchang Ma ◽  
Zhi Zhu ◽  
Xianghai Song ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Au Nanoparticles ◽  
Interfacial Electron Transfer ◽  
Transfer Scheme ◽  
Au Nps ◽  
Co2 Photoreduction ◽  
Reduced Graphene

CdIn2S4 micro-flower spheres modified with Au NPs and rGO have been designed for CO2 photoreduction.

Direct electrochemical deposition of polyaniline nanowire array on reduced graphene oxide modified graphite electrode for direct electron transfer biocatalysis

RSC Advances ◽  
2015 ◽  
Vol 5 (113) ◽  
pp. 93209-93214 ◽  
Author(s):  
Lin Xia ◽  
Jianfei Xia ◽  
Zonghua Wang
Keyword(s):  
Electron Transfer ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electrochemical Deposition ◽  
Graphite Electrode ◽  
Direct Electron Transfer ◽  
Nanowire Array ◽  
Graphite Electrodes ◽  
Reduced Graphene

Direct electron transfer biocatalysis was achieved via electrochemically produced ordered PANI nanowire array on reduced graphene oxide modified graphite electrodes.

scholarly journals Novel Composite Electrode of the Reduced Graphene Oxide Nanosheets with Gold Nanoparticles Modified by Glucose Oxidase for Electrochemical Reactions

Catalysts ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 764 ◽  
Author(s):  
Dong ◽  
Yu ◽  
Liu ◽  
Liu ◽  
Shao ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Gold Nanoparticles ◽  
Graphene Oxide ◽  
Glucose Oxidase ◽  
Reduced Graphene Oxide ◽  
Direct Electron Transfer ◽  
Cyclic Voltammograms ◽  
Graphene Oxide Nanosheets ◽  
X Ray ◽  
Reduced Graphene

Graphene-based composites have been widely explored for electrode and electrocatalyst materials for electrochemical energy systems. In this paper, a novel composite material of the reduced graphene oxide nanosheets (rGON) with gold nanoparticles (NPs) (rGON-AuNP) is synthesized, and its morphology, structure, and composition are characterized by scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), energy dispersive X-ray (EDX), Fourier transform infrared spectroscopic (FTIR), Raman, and UV-Vis techniques. To confirm this material’s electrochemical activity, a glucose oxidase (GOD) is chosen as the target reagent to modify the rGON-AuNP layer to form GOD/rGON-AuNP/glassy carbon (GC) electrode. Two pairs of distinguishable redox peaks, corresponding to the redox processes of two different conformational GOD on AuNP, are observed on the cyclic voltammograms of GOD/rGON-AuNP/GC electrode. Both cyclic voltammetry and electrochemical impedance spectroscopy are employed to study the mechanism of direct electron transfer from GOD to GC electrode on the rGON-AuNP layer. In addition, this GOD/rGON-AuNP/GC electrode shows catalytic activity toward glucose oxidation reaction.

scholarly journals Novel Composite Electrode of the Reduced Graphene Oxide Nanosheets with Gold Nanoparticles Modified by Glucose Oxidase for Electrochemical Reactions

2019 ◽  
Author(s):  
Li Dong ◽  
Wenjuan Yu ◽  
Minmin Liu ◽  
Yang Liu ◽  
Qinsi Shao ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Graphene Oxide ◽  
Glucose Oxidase ◽  
Reduced Graphene Oxide ◽  
Electrochemical Impedance ◽  
Direct Electron Transfer ◽  
Cyclic Voltammograms ◽  
Graphene Oxide Nanosheets ◽  
Reduced Graphene ◽  
Glucose Oxidation Reaction

Graphene-based composites have been widely explored for electrode and electrocatalyst materials for electrochemical energy systems. In this paper, a novel composite material of the reduced graphene oxide nanosheets (rGON) with gold nanoparticles (NPs) (rGON-AuNP) is synthesized, and its morphology, structure and composition are characterized by SEM, HRTEM, XRD, EDX, FTIR, Raman, and UV-Vis techniques. To confirm this material’s electrochemical activity, a glucose oxidase (GOD) is chosen as the target reagent to modify the rGON-AuNP layer to form GOD/rGON-AuNP/glassy carbon (GC) electrode. Two pairs of distinguishable redox peaks, corresponding to the redox processes of two different conformational GOD on AuNP, are observed on the cyclic voltammograms of GOD/rGON-AuNP/GC electrode. Both cyclic voltammetry and electrochemical impedance spectroscopy are employed to study the mechanism of direct electron transfer from GOD to GC electrode on the rGON-AuNP layer. In addition, this GOD/rGON-AuNP/GC electrode shows catalytic activity toward glucose oxidation reaction.

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