Gold nanoparticle-mediated electron transfer of cytochrome c on a self-assembled surface

RSC Advances ◽  
2016 ◽  
Vol 6 (67) ◽  
pp. 62585-62593 ◽  
Author(s):  
Roberto A. S. Luz ◽  
Frank N. Crespilho
Keyword(s):  
Gold Nanoparticles ◽  
Electron Transfer ◽  
Cytochrome C ◽  
Gold Nanoparticle ◽  
Gold Electrode ◽  
Short Range ◽  
Mediated Electron Transfer ◽  
Self Assembled

Gold nanoparticles provide short-range electron transfer between cytochrome c and gold electrode.

Electrochemical Aptasensor for Label-Free Detection of Protein Based on Gold Nanoparticle Involved Self-Assembly

2013 ◽  
Vol 310 ◽  
pp. 177-182
Author(s):  
Song Bai Zhang ◽  
Bing Jun Zhang ◽  
Qian Liu ◽  
Xia Hu ◽  
Li Ying Zheng ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Gold Nanoparticle ◽  
Self Assembly ◽  
Gold Electrode ◽  
Hot Water ◽  
Target Protein ◽  
Capture Probe ◽  
Label Free ◽  
Label Free Detection ◽  
Self Assembled

A label-free electrochemical biosensing strategy based on gold nanoparticle involved layer-by-layer self assembly for the detection of protein is proposed using platelet derived growth factor-BB dimer (PDGF-BB) as the model analyte. Utilizing the strong sulfur-Au affinity, ethanthiol and capture probe modified gold nanoparticles are self-assembled onto the surface of gold electrode successively. The aptamer probe for target protein hybridizes with the capture probe and the biosensor is fabricated. By measuring ac current voltammetry, the target protein can be sensitively detected in a linear dynamic range from 1-1000 ng/mL with a low detection limit of 0.5 ng/mL. Making use of self-assembled gold nanoparticles layer, a large amount of capture probes can be modified onto the gold electrode, supporting the high sensitivity of the proposed strategy. In addition, good reproducibility, high selectivity and stability are achieved. In particular, the biosensor can be easily regenerated by melting in hot water, making it reusable.

Self-assembled multilayer of gold nanoparticles for amplified electrochemical detection of cytochrome c

The Analyst ◽  
2008 ◽  
Vol 133 (9) ◽  
pp. 1242 ◽  
Author(s):  
Jing Zhao ◽  
Xiaoli Zhu ◽  
Ting Li ◽  
Genxi Li
Keyword(s):  
Gold Nanoparticles ◽  
Cytochrome C ◽  
Electrochemical Detection ◽  
Self Assembled

scholarly journals Interactions between Cytochrome c and DNA Strands Self-Assembled at Gold Electrode

2007 ◽  
Vol 8 (2) ◽  
pp. 136-144 ◽  
Author(s):  
Ruojun Lao ◽  
Lihua Wang ◽  
Ying Wan ◽  
Jiong Zhang ◽  
Shiping Song ◽  
...  
Keyword(s):  
Cytochrome C ◽  
Gold Electrode ◽  
Dna Strands ◽  
Self Assembled

Superoxide Anion Radical Biosensor Using Self-Assembled Cysteine Monolayer on Gold Nanoparticles in Polypyrrole Matrix Facilitated Electron Transfer in Cu, ZnSOD

2010 ◽  
Vol 8 (4) ◽  
pp. 613-621 ◽  
Author(s):  
Seenivasan Rajesh ◽  
U. S. Ezhil Arivudainambi ◽  
Sarkkarai Rajasingh ◽  
Ayyappan Rajendran ◽  
Srigiridhar Kotamraju ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Electron Transfer ◽  
Superoxide Anion ◽  
Anion Radical ◽  
Superoxide Anion Radical ◽  
Self Assembled
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