Functional graphene–gold nanoparticle hybrid system for enhanced electrochemical biosensing of free cholesterol

2015 ◽  
Vol 7 (9) ◽  
pp. 3993-4002 ◽  
Author(s):  
Shiju Abraham ◽  
Narsingh R. Nirala ◽  
Shobhit Pandey ◽  
Monika Srivastava ◽  
Sunil Srivastava ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Gold Nanoparticle ◽  
Reduced Graphene Oxide ◽  
Hybrid System ◽  
Free Cholesterol ◽  
Cost Effective ◽  
Diagnostic Techniques ◽  
Electrochemical Biosensing ◽  
System P ◽  
Reduced Graphene

Realizing the unavailability of fast and reliable diagnostic techniques, this work reports the development of cost effective bioelectrodes based on a reduced graphene oxide–functionalized gold nanoparticle hybrid system.

Label-free electrochemical immunosensor based on gold nanoparticle/polyethyleneimine/reduced graphene oxide nanocomposite for the ultrasensitive detection of cancer biomarker matrix metalloproteinase-1

The Analyst ◽  
2021 ◽  
Author(s):  
Xinke Liu ◽  
Lu-Yin Lin ◽  
Fu-Yen Tseng ◽  
Yu-Cheng Tan ◽  
Jian Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Matrix Metalloproteinase ◽  
Gold Nanoparticle ◽  
Reduced Graphene Oxide ◽  
Electrochemical Immunosensor ◽  
Ultrasensitive Detection ◽  
Label Free ◽  
Matrix Metalloproteinase 1 ◽  
Reduced Graphene ◽  
P Matrix

Matrix metalloproteinase-1 (MMP-1) is associated with many types of cancers, including oral, colorectal, and brain cancers. This paper describes the fabrication of an MMP-1 immunosensor based on a gold nanoparticle/polyethyleneimine/reduced...

scholarly journals Paper-based potentiometric sensing devices modified with chemically reduced graphene oxide (CRGO) for trace level determination of pholcodine (opiate derivative drug)

RSC Advances ◽  
2021 ◽  
Vol 11 (20) ◽  
pp. 12227-12234
Author(s):  
Hisham S. M. Abd-Rabboh ◽  
Abd El-Galil E. Amr ◽  
Elsayed A. Elsayed ◽  
Ahmed Y. A. Sayed ◽  
Ayman H. Kamel
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Cost Effective ◽  
Trace Level ◽  
Ion Sensing ◽  
Reduced Graphene ◽  
Chemically Reduced Graphene Oxide ◽  
Trace Level Determination ◽  
Analytical Device

Robust, reliable and cost-effective paper-based analytical device for potentiometric pholcodine (opiate derivative drug) ion sensing has been prepared and characterized.

scholarly journals Plasmonic photocatalysis: complete degradation of bisphenol A by a gold nanoparticle–reduced graphene oxide composite under visible light

2018 ◽  
Vol 17 (5) ◽  
pp. 628-637 ◽  
Author(s):  
Haydar Ali ◽  
Nikhil R. Jana
Keyword(s):  
Graphene Oxide ◽  
Bisphenol A ◽  
Visible Light ◽  
Gold Nanoparticle ◽  
Reduced Graphene Oxide ◽  
Contaminated Water ◽  
Food Environments ◽  
Oxide Composite ◽  
Complete Degradation ◽  
Reduced Graphene

A gold nanoparticle–graphene based composite has been developed for the degradation of bisphenol A under visible light and to detoxify contaminated water/food/environments.

Tuning the cationic ratio of Fe1CoxNiyP integrated on Vertically aligned reduced graphene oxide array via electroless plating as efficient self-supported bifunctional electrocatalyst for water splitting

2021 ◽  
pp. 1-33
Author(s):  
Kaiming Guo ◽  
Firdoz Shaik ◽  
Jine Yang ◽  
Bin Jiang
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Water Splitting ◽  
Electroless Plating ◽  
Cost Effective ◽  
Bifunctional Electrocatalyst ◽  
Reduced Graphene ◽  
Wide Ph Range ◽  
Vertically Aligned ◽  
Ph Range

Abstract Water splitting is considered as a potential sustainable and green technology for producing mass hydrogen and oxygen. A cost-effective self-supported stable electrocatalyst with excellent electrocatalytic performance in a wide pH range is greatly required for water splitting. This work reports on the synthesis and anchoring of Fe1CoxNiyP nanoparticles on vertically aligned reduced graphene oxide array (VrGO) via electroless plating. The catalytic activity of Fe1CoxNiyP nanoparticles is tuned finely by tailoring the cationic ratio of Co and Ni. Fe1Co2Ni1P/VrGO exhibits the lowest overpotential (58 and 110 mV) at 10 mA cm−2 and lowest tafel slope (31 and 33 mV dec−1) for hydrogen evolution reaction in 1.0 M KOH and 0.5 M H2SO4 respectively. Fe1Co1Ni2P/VrGO exhibits the lowest overpotential (173 mV) at 10 mA cm−2 with lowest tafel slope (47 mV dec-1) for oxygen evolution reaction. The enhanced performance of the electrocatalyst is attributed to improved electrical conductivity, synergistic effects and beneficial electronic states caused by the appropriate atomic ratio of Co and Ni in the bifunctional electrocatalyst. This study helps to explore the effect of variable cationic ratio in the cost-effective ternary iron group metal phosphides electrocatalysts to achieve enhanced electrocatalytic performance for water splitting in a wide pH range.

Reduced graphene oxide–gold nanoparticle membrane for water purification

2018 ◽  
Vol 54 (6) ◽  
pp. 1079-1085 ◽  
Author(s):  
Meng-meng Cheng ◽  
Lin-jun Huang ◽  
Yan-xin Wang ◽  
Jian-guo Tang ◽  
Yao Wang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Gold Nanoparticle ◽  
Reduced Graphene Oxide ◽  
Water Purification ◽  
Reduced Graphene
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