Electrochemical impedance study of self-assembled layer-by-layer iron–silicotungstate/poly(ethylenimine) modified electrodes

2011 ◽  
Vol 56 (23) ◽  
pp. 7940-7945 ◽  
Author(s):  
Diana M. Fernandes ◽  
Mariana E. Ghica ◽  
Ana M.V. Cavaleiro ◽  
Christopher M.A. Brett
Keyword(s):  
Electrochemical Impedance ◽  
Modified Electrodes ◽  
Layer By Layer ◽  
Impedance Study ◽  
Self Assembled ◽  
Self Assembled Layer ◽  
Layer Iron

Enhanced reverse saturable absorption of electrostatic self-assembled layer by layer films containing (8-quinolineoxy-5-sulfonic acid)phthalocyanine cobalt and graphene oxide

RSC Advances ◽  
2015 ◽  
Vol 5 (68) ◽  
pp. 55150-55157 ◽  
Author(s):  
Bowen Chen ◽  
Chunying He ◽  
Weina Song ◽  
Cheng Zhao ◽  
Yachen Gao ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Sulfonic Acid ◽  
Saturable Absorption ◽  
Reverse Saturable Absorption ◽  
Layer By Layer ◽  
Input Intensity ◽  
Self Assembled ◽  
Self Assembled Layer

The 25-bilayer CoPc/GO film was fabricated through electrostatic self-assembled layer by layer (LBL) technique, and it exhibits strong reverse saturable absorption (RSA) effect with the input intensity of 1.16 μJ.

ATTENUATED TOTAL REFLECTION AND EMISSION PROPERTIES OF SELF-ASSEMBLED LAYER-BY-LAYER FILMS CONTAINING AZOBENZENE DYE

2003 ◽  
Vol 407 (1) ◽  
pp. 105-113
Author(s):  
Keizo Kato ◽  
Junichi Kawashima ◽  
Kazunari Shinbo ◽  
Futao Kaneko ◽  
Keizo Kato ◽  
...  
Keyword(s):  
Total Reflection ◽  
Attenuated Total Reflection ◽  
Layer By Layer ◽  
Emission Properties ◽  
Self Assembled ◽  
Self Assembled Layer

DNA Electrochemical Biosensor Based on Chitosan and Gold Nanoparticles Using Methylene Blue as Electrochemical Indicator

2011 ◽  
Vol 298 ◽  
pp. 128-134
Author(s):  
Ai Chun Zhang ◽  
Cun Zhou
Keyword(s):  
Methylene Blue ◽  
Gold Nanoparticles ◽  
Electrochemical Biosensor ◽  
Gold Atom ◽  
Modified Electrodes ◽  
Layer By Layer ◽  
Adsorption Effect ◽  
Dna Electrochemical Biosensor ◽  
Modified Dna ◽  
Self Assembled

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.

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