Freestanding monolayered nanoporous gold films with high electrocatalytic activity via interfacial self-assembly and overgrowth

2013 ◽  
Vol 1 (15) ◽  
pp. 4678 ◽  
Author(s):  
Haibing Xia ◽  
Yan Ran ◽  
Houshen Li ◽  
Xutang Tao ◽  
Dayang Wang
Keyword(s):  
Self Assembly ◽  
Electrocatalytic Activity ◽  
Nanoporous Gold ◽  
Gold Films

scholarly journals Chemically controlled interfacial nanoparticle assembly into nanoporous gold films for electrochemical applications

2018 ◽  
Vol 6 (2) ◽  
pp. 556-564 ◽  
Author(s):  
Mikkel U.-B. Christiansen ◽  
Nedjeljko Seselj ◽  
Christian Engelbrekt ◽  
Michal Wagner ◽  
Frederick N. Stappen ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Self Assembly ◽  
Nanoporous Gold ◽  
Nanoparticle Assembly ◽  
Gold Films ◽  
Electrochemical Applications ◽  
Air Interface

Nanoporous gold (NPG) is an effective material for electrocatalysis and can be made by self-assembly of gold nanoparticles at liquid–air interface.

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.

Arginine-assisted synthesis of palladium nanochain networks and their enhanced electrocatalytic activity for borohydride oxidation

RSC Advances ◽  
2015 ◽  
Vol 5 (23) ◽  
pp. 18111-18115 ◽  
Author(s):  
Geng-Tao Fu ◽  
Rui Wu ◽  
Chang Liu ◽  
Jun Lin ◽  
Dong-Mei Sun ◽  
...  
Keyword(s):  
Self Assembly ◽  
Electrocatalytic Activity ◽  
Oxidation Reaction ◽  
Three Dimensional ◽  
Assembly Process ◽  
Electrocatalytic Performance ◽  
Borohydride Oxidation

Three-dimensional Pd nanochain networks (Pd-NCNs) were prepared by an arginine-assisted self-assembly process, exhibiting excellent electrocatalytic performance towards the borohydride oxidation reaction.

Application of Bioconjugated Nanoporous Gold Films in Electrochemical Biosensors

2014 ◽  
pp. 345-374
Author(s):  
Leila Kashefi-Kheyrabadi ◽  
Abolhassan Noori ◽  
Masoud Ayatollahi Mehrgardi
Keyword(s):  
Nanoporous Gold ◽  
Electrochemical Biosensors ◽  
Gold Films

scholarly journals Bulk and surface plasmons in highly nanoporous gold films

2007 ◽  
Vol 40 (18) ◽  
pp. 5675-5682 ◽  
Author(s):  
A I Maaroof ◽  
A Gentle ◽  
G B Smith ◽  
M B Cortie
Keyword(s):  
Surface Plasmons ◽  
Nanoporous Gold ◽  
Gold Films

Self-assembly of Pt-based truncated octahedral crystals into metal-frameworks towards enhanced electrocatalytic activity

2016 ◽  
Vol 4 (39) ◽  
pp. 15169-15180 ◽  
Author(s):  
Yunpeng Zuo ◽  
Tingting Li ◽  
Huan Ren ◽  
Guilin Zhu ◽  
Kai Han ◽  
...  
Keyword(s):  
Self Assembly ◽  
Electrocatalytic Activity

Self-assembly of Pt-based truncated octahedral crystals into frameworks has been demonstrated in this paper by suitably adjusting the reactant concentrations and temperature.

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