Oxidation–Reduction Dynamics in Layer-by-Layer Self-Assembled Redox Polyelectrolyte Multilayer Modified Electrodes

2006 ◽  
Vol 6 (6) ◽  
pp. 1731-1740 ◽  
Author(s):  
M. Tagliazucchi ◽  
D. Grumelli ◽  
C. Bonazzola ◽  
E. J. Calvo
2011 ◽  
Vol 298 ◽  
pp. 128-134
Author(s):  
Ai Chun Zhang ◽  
Cun Zhou

In this paper, a novel DNA electrochemical biosensor based on layer-by-layer self-assembled technology was reported. Gold nanoparticles were firstly immobilized on chitosan modified gold electrode by large amino of chitosan because of strong electrostatic adsorption effect between amino and gold atom, and thoil group modified DNA (SH-ssDNA) probe sequence was then self-assembled onto the electrode. Cyclic voltammetry (CV) and differential pulse voltammetry (DPV) were applied to investigate the electrochemical behavior of different modified electrodes with methylene blue as hybrid indicator. The results in optimization experiment condition show that: The peak current difference value pre and post hybridization was linearly related to the logatithmic value of the target DNA concentration ranging from 10-8~10-5mol/L.A detection limit of 3.55×10-9mol/L can be estimated.


Langmuir ◽  
2002 ◽  
Vol 18 (10) ◽  
pp. 4020-4029 ◽  
Author(s):  
Erica S. Forzani ◽  
Marcelo Otero ◽  
Manuel A. Pérez ◽  
Manuel López Teijelo ◽  
Ernesto J. Calvo

2017 ◽  
Vol 13 (4) ◽  
pp. 1423-1433 ◽  
Author(s):  
Xilin Liu ◽  
Fei Han ◽  
Peng Zhao ◽  
Chao Lin ◽  
Xuejun Wen ◽  
...  

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