Directed Self-Assembly of Gold Nanoparticles on Graphene-Ionic Liquid Hybrid for Enhancing Electrocatalytic Activity

2011 ◽  
Vol 23 (4) ◽  
pp. 850-857 ◽  
Author(s):  
Min Ho Yang ◽  
Bong Gill Choi ◽  
HoSeok Park ◽  
Tae Jung Park ◽  
Won Hi Hong ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Ionic Liquid ◽  
Self Assembly ◽  
Electrocatalytic Activity

scholarly journals Electrodeposition–Assisted Assembled Multilayer Films of Gold Nanoparticles and Glucose Oxidase onto Polypyrrole-Reduced Graphene Oxide Matrix and Their Electrocatalytic Activity toward Glucose

Nanomaterials ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 993 ◽  
Author(s):  
Baoyan Wu ◽  
Shihua Hou ◽  
Yongyong Xue ◽  
Zhan Chen
Keyword(s):  
Gold Nanoparticles ◽  
Graphene Oxide ◽  
Glucose Oxidase ◽  
Reduced Graphene Oxide ◽  
Self Assembly ◽  
Electrocatalytic Activity ◽  
Multilayer Films ◽  
Glucose Biosensor ◽  
Future Design ◽  
Reduced Graphene

The study reports a facile and eco-friendly approach for nanomaterial synthesis and enzyme immobilization. A corresponding glucose biosensor was fabricated by immobilizing the gold nanoparticles (AuNPs) and glucose oxidase (GOD) multilayer films onto the polypyrrole (PPy)/reduced graphene oxide (RGO) modified glassy carbon electrode (GCE) via the electrodeposition and self-assembly. PPy and graphene oxide were first coated on the surface of a bare GCE by the electrodeposition. Then, AuNPs and GOD were alternately immobilized onto PPy-RGO/GCE electrode using the electrodeposition of AuNPs and self-assembly of GOD to obtain AuNPs-GOD multilayer films. The resulting PPy-RGO-(AuNPs-GOD)n/GCE biosensors were used to characterize and assess their electrocatalytic activity toward glucose using cyclic voltammetry and amperometry. The response current increased with the increased number of AuNPs-GOD layers, and the biosensor based on four layers of AuNPs-GOD showed the best performance. The PPy-RGO-(AuNPs-GOD)4/GCE electrode can detect glucose in a linear range from 0.2 mM to 8 mM with a good sensitivity of 0.89 μA/mM, and a detection limit of 5.6 μM (S/N = 3). This study presents a promising eco-friendly biosensor platform with advantages of electrodeposition and self-assembly, and would be helpful for the future design of more complex electrochemical detection systems.

Self-Assembly of Ionic Liquid (BMI-PF6)-Stabilized Gold Nanoparticles on a Silicon Surface: Chemical and Structural Aspects

Langmuir ◽  
2008 ◽  
Vol 24 (15) ◽  
pp. 7785-7792 ◽  
Author(s):  
Om P. Khatri ◽  
Kosaku Adachi ◽  
Kuniaki Murase ◽  
Ken-ichi Okazaki ◽  
Tsukasa Torimoto ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Ionic Liquid ◽  
Self Assembly ◽  
Silicon Surface ◽  
Surface Chemical ◽  
Structural Aspects

Temperature and anion responsive self-assembly of ionic liquid block copolymers coating gold nanoparticles

2016 ◽  
Vol 10 (2) ◽  
pp. 178-186 ◽  
Author(s):  
Junbo Li ◽  
Jianlong Zhao ◽  
Wenlan Wu ◽  
Ju Liang ◽  
Jinwu Guo ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Ionic Liquid ◽  
Block Copolymers ◽  
Self Assembly

Large mesoporous carbons decorated with silver and gold nanoparticles by a self-assembly method: enhanced electrocatalytic activity for H2O2 electroreduction and sodium nitrite electrooxidation

RSC Advances ◽  
2015 ◽  
Vol 5 (4) ◽  
pp. 2956-2962 ◽  
Author(s):  
X. J. Yang ◽  
Y. H. Wang ◽  
J. Bai ◽  
X. Y. He ◽  
X. E. Jiang
Keyword(s):  
Gold Nanoparticles ◽  
Sodium Nitrite ◽  
Self Assembly ◽  
Electrocatalytic Activity ◽  
Mesoporous Carbon ◽  
Mesoporous Carbons ◽  
Silver And Gold Nanoparticles ◽  
Assembly Method

The silver, gold nanoparticles were grown onto poly (diallyldimethyl ammoniumchloride, PDDA)-functionalized large mesoporous carbon (LMC) by simple self-assembly method. AuNPs or AgNPs/PDDA–LMC show superior electrocatalytic activity.

Electrostatic Self-assembly Deposition of Layered Calcium Niobate Intercalated with Task-specific Ionic Liquid and Its Electrocatalytic Activity

2017 ◽  
Vol 46 (4) ◽  
pp. 506-508 ◽  
Author(s):  
Zhenye Zhang ◽  
Dayang Wang ◽  
Min Yang ◽  
Lin Liu ◽  
Juanjuan Ma ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Self Assembly ◽  
Electrocatalytic Activity ◽  
Calcium Niobate ◽  
Task Specific Ionic Liquid

Plasmon switching of gold nanoparticles through thermo-responsive terminal breathing of surface-grafted DNA in hydrated ionic liquid

The Analyst ◽  
2021 ◽  
Author(s):  
Lu Cheng ◽  
Luyang Wang ◽  
zhiyu He ◽  
Xun Sun ◽  
Yujin Li ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Self Assembly ◽  
Optoelectronic Devices ◽  
Building Blocks ◽  
The Rich

Self-assembly performed in ionic liquids (ILs) as a unique solvent promises distinct functions and applications in sensors, therapeutics, and optoelectronic devices, due to the rich interactions between nanoparticle building blocks...

Fabrication of polypyrrole nanoplates decorated with silver and gold nanoparticles for sensor applications

RSC Advances ◽  
2015 ◽  
Vol 5 (85) ◽  
pp. 69745-69752 ◽  
Author(s):  
Junwei Ding ◽  
Kai Zhang ◽  
Gang Wei ◽  
Zhiqiang Su
Keyword(s):  
Gold Nanoparticles ◽  
Self Assembly ◽  
Electrocatalytic Activity ◽  
Assembly Process ◽  
Silver And Gold Nanoparticles ◽  
Sensor Applications

The PPyNPT–Ag and PPyNPT–Au nanohybrids fabricated by self-assembly process exhibit excellent electrocatalytic activity toward H2O2 and DA, respectively.

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