Porous-layered stack of functionalized AuNP–rGO (gold nanoparticles–reduced graphene oxide) nanosheets as a sensing material for the micro-gravimetric detection of chemical vapor

2013 ◽  
Vol 1 (14) ◽  
pp. 4444 ◽  
Author(s):  
Haitao Yu ◽  
Pengcheng Xu ◽  
D.-W. Lee ◽  
Xinxin Li
Keyword(s):  
Gold Nanoparticles ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Chemical Vapor ◽  
Graphene Oxide Nanosheets ◽  
Sensing Material ◽  
Reduced Graphene

Immobilization of gold nanoparticles on folate-conjugated dendritic mesoporous silica-coated reduced graphene oxide nanosheets: a new nanoplatform for curcumin pH-controlled and targeted delivery

Soft Matter ◽  
2018 ◽  
Vol 14 (12) ◽  
pp. 2400-2410 ◽  
Author(s):  
Samira Malekmohammadi ◽  
Hassan Hadadzadeh ◽  
Hossein Farrokhpour ◽  
Zahra Amirghofran
Keyword(s):  
Gold Nanoparticles ◽  
Graphene Oxide ◽  
Folic Acid ◽  
Mesoporous Silica ◽  
Reduced Graphene Oxide ◽  
Targeted Delivery ◽  
Cell Imaging ◽  
Graphene Oxide Nanosheets ◽  
Reduced Graphene ◽  
Gold Nps

A nanocarrier for curcumin targeted delivery and cell imaging was prepared by immobilization of gold NPs on the folic acid-modified dendritic mesoporous silica-coated reduced graphene oxide nanosheets.

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.

Hybrid two-dimensional nickel oxide-reduced graphene oxide nanosheets for supercapacitor electrodes

2021 ◽  
Vol 164 ◽  
pp. 105979
Author(s):  
Xin Gao ◽  
Hengwei Zhang ◽  
Erjun Guo ◽  
Fei Yao ◽  
Zengze Wang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Nickel Oxide ◽  
Reduced Graphene Oxide ◽  
Two Dimensional ◽  
Graphene Oxide Nanosheets ◽  
Reduced Graphene

Polyaniline-Reduced Graphene Oxide Nanosheets for Room Temperature NH3 Detection

2021 ◽  
Author(s):  
Junyu Chang ◽  
Xiaobo Zhang ◽  
Zhenming Wang ◽  
Chunsheng Li ◽  
Qi Hu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Room Temperature ◽  
Graphene Oxide Nanosheets ◽  
Reduced Graphene

scholarly journals Evolution of large-area reduced graphene oxide nanosheets from carbon dots via thermal treatment

Carbon Trends ◽  
2021 ◽  
pp. 100074
Author(s):  
Lerato L Mokoloko ◽  
Boitumelo J Matsoso ◽  
Roy P. Forbes ◽  
Dean H. Barrett ◽  
Beatriz D. Moreno ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Thermal Treatment ◽  
Reduced Graphene Oxide ◽  
Carbon Dots ◽  
Graphene Oxide Nanosheets ◽  
Large Area ◽  
Reduced Graphene
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