Surface plasmon-enhanced activity and stability for methanol oxidation on gold caviar-like assembly under solar light

2018 ◽  
Vol 6 (22) ◽  
pp. 10515-10524 ◽  
Author(s):  
Yaxing Liu ◽  
Fuyi Chen ◽  
Qiao Wang ◽  
Junpeng Wang ◽  
Jiali Wang ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Methanol Oxidation ◽  
Surface Plasmon ◽  
Alkaline Solution ◽  
Plasmon Resonance ◽  
Methanol Electrooxidation ◽  
Solar Light ◽  
Au Nanoparticle ◽  
Nanoparticle Assembly ◽  
Enhanced Activity

The activity of the methanol electrooxidation reaction on the Au nanoparticle assembly is enhanced by surface plasmon resonance in an alkaline solution.

Signal Enhancement of Surface Plasmon Resonance Based on Gold Nanoparticle-Antibody Complex for Immunoassay

2006 ◽  
Vol 6 (11) ◽  
pp. 3521-3525
Author(s):  
Woochang Lee ◽  
Byung-Keun Oh ◽  
Yong-Wan Kim ◽  
Jeong-Woo Choi
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Antibody Fragment ◽  
Signal Enhancement ◽  
Au Nanoparticle ◽  
Constant Size ◽  
Antibody Complex ◽  
Antibody Conjugate ◽  
Versus Antigen

In the immunoassay based on surface plasmon resonance (SPR) system, the signal enhancement was done by means of the conjugate of gold (Au) nanoparticle-antibody fragment. Antibody fragment was prepared for the improved immobilization based on Au-thiol interaction. Through the ellipsometric analysis on surface, the conjugation between Au and antibody fragment was performed in the oriented manner. The optimal fabrication conditions such as concentration and incubation time were determined for the constant size of the fabricated nanoparticle-antibody conjugate. Through the plot of SPR angle difference versus antigen concentration, the linear correlation was achieved, of which the detection limit was 100 fg/ml.

Sign in / Sign up

Export Citation Format

Share Document