Prussian blue–gold nanoparticles-ionic liquid functionalized reduced graphene oxide nanocomposite as label for ultrasensitive electrochemical immunoassay of alpha-fetoprotein

2014 ◽  
Vol 829 ◽  
pp. 15-21 ◽  
Author(s):  
Qi Gao ◽  
Na Liu ◽  
Zhanfang Ma
2015 ◽  
Vol 39 (2) ◽  
pp. 1006-1012 ◽  
Author(s):  
Teng Xu ◽  
Jie Ma ◽  
Zhanfang Ma

The simultaneous detection of carcinoembryonic antigen and alpha-fetoprotein was achieved by combining ionic liquid–reduced graphene oxide with two different redox probes through electrostatic adsorption.


2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Huanping Yang ◽  
Weiwei Zhou ◽  
Bo Yu ◽  
Yingying Wang ◽  
Chunxiao Cong ◽  
...  

A simple method employing ionic liquid functionalization is developed to achieve the uniform decoration of reduced graphene oxide sheets with gold nanoparticles. The synthesis of ionic liquid modified graphene oxide is accomplished by covalently binding 1-(3-Aminopropyl) imidazole with GO sheets. The formation mechanism of Au nanoparticles on RGO sheets is proposed to loadAuCl4-onto the surface of GO sheets through anion exchange; then reduceAuCl4-to Au NPs and at the same time reduce GO sheets to RGO sheets via a one-step process. The presence of Au NPs is well identified by SEM, TEM, and XPS. As a concept, the RGO-supported Au NPs is applied to surface-enhanced Raman spectroscopy.


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