An Unusual Electrochemical Reductive Cleavage of Azo Dye into Highly Redox Active Copolymeric Aniline Derivatives on a MWCNT Modified Electrode Surface at Neutral pH and Its Electroanalytical Features

2015 ◽  
Vol 119 (14) ◽  
pp. 7791-7801 ◽  
Author(s):  
Prakasam Gayathri ◽  
Annamalai Senthil Kumar ◽  
Sriraghavan Kamaraj
Keyword(s):  
Modified Electrode ◽  
Electrode Surface ◽  
Azo Dye ◽  
Reductive Cleavage ◽  
Aniline Derivatives ◽  
Neutral Ph ◽  
Redox Active

scholarly journals Phytochelatin Modified Electrode Surface as a Sensitive Heavy- Metal Ion Biosensor

Sensors ◽  
2005 ◽  
Vol 5 (1) ◽  
pp. 70-84 ◽  
Author(s):  
Vojtech Adam ◽  
Josef Zehnalek ◽  
Jitka Petrlova ◽  
David Potesil ◽  
Bernd Sures ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Modified Electrode ◽  
Electrode Surface ◽  
Metal Ion ◽  
Heavy Metal Ion

XPS, SEM, EDX and EIS study of an electrochemically modified electrode surface of natural chalcocite (Cu2S)

2001 ◽  
Vol 510 (1-2) ◽  
pp. 20-28 ◽  
Author(s):  
P Velásquez ◽  
D Leinen ◽  
J Pascual ◽  
J.R Ramos-Barrado ◽  
R Cordova ◽  
...  
Keyword(s):  
Modified Electrode ◽  
Electrode Surface

Development of coupled redox active network in Ca-alginate polymer for immobilization of Pseudomonas putida 1046 on electrode surface

2019 ◽  
Vol 312 ◽  
pp. 432-440 ◽  
Author(s):  
Yolina Hubenova ◽  
Eleonora Hubenova ◽  
Blagoy Burdin ◽  
Daria Vladikova ◽  
Mario Mitov
Keyword(s):  
Pseudomonas Putida ◽  
Electrode Surface ◽  
Active Network ◽  
Redox Active ◽  
Ca Alginate

scholarly journals Selective Determination of Dopamine in Presence of Ascorbic Acid Using Nafion Coated Methylene Blue Functionalized Graphite Electrode

2019 ◽  
Vol 31 (10) ◽  
pp. 2185-2190
Author(s):  
G. Sivasankari ◽  
K. Sivasankari ◽  
T. Nalini ◽  
P. Padmapriya ◽  
M. Nadhiya
Keyword(s):  
Methylene Blue ◽  
Ascorbic Acid ◽  
Modified Electrode ◽  
Electrode Surface ◽  
Graphite Electrode ◽  
Low Cost ◽  
Differential Pulse ◽  
Selective Determination ◽  
The Stability

An electrochemical sensor has been developed using methylene blue (MB) unctionalized graphite for the selective determination of dopamine in the presence of ascorbic acid. The immobilization of methylene blue on graphite was done by carbodiimide coupling method. The methylene blue functionalized graphite was characterized by SEM, FTIR spectroscopy and UV-visible spectroscopy. The immobilization of methylene blue functionalized graphite (MB-G) on the electrode surface was made by drop casting a small volume of MB-G dispersed methanol solution on the electrode surface. About 5 L of 0.5 % Nafion solution was also dropcasted for the stability and selectivity. The MB-G modified electrode was characterized by cyclic voltammetry. The modified electrode promotes the electrocatalytic oxidation of dopamine at a lower potential of 160 mV. The selective determination of dopamine in the presence of 100 times higher concentration of ascorbic acid was achieved by differential pulse voltammetry. The modified electrode offered a simple, selective and sensitive determination of low levels of dopamine. Also the oxidation over potential was reduced to an extent of 360 mV comparing with the bare graphite electrode. The proposed sensor has the advantage of easy fabrication, low cost, good sensitivity, reproducibility and stability.

Development of Redox-Active Optical Mesostructures at Chemically Modified Electrode Interfaces

1995 ◽  
Vol 34 (16) ◽  
pp. 4262-4267 ◽  
Author(s):  
Ying Wu ◽  
Brian W. Pfennig ◽  
Andrew B. Bocarsly ◽  
Edward P. Vicenzi
Keyword(s):  
Modified Electrode ◽  
Chemically Modified Electrode ◽  
Chemically Modified ◽  
Redox Active

Preparation of GR/HRP/Chit Modified Electrode and its Electrochemical Behaviors

2013 ◽  
Vol 704 ◽  
pp. 87-91
Author(s):  
Hao Shu ◽  
Yan Li Shang ◽  
Han Cui ◽  
Qi Jin Wan ◽  
Nian Jun Yang
Keyword(s):  
Horseradish Peroxidase ◽  
Electrical Activity ◽  
Modified Electrode ◽  
Glassy Carbon ◽  
Electrode Surface ◽  
Enzyme Mechanism ◽  
Carbon Electrode ◽  
Oxidation Peak ◽  
Peak Potential ◽  
Electrochemical Behaviors

Horseradish peroxidase (HRP) was immobilized on the glassy carbon electrode surface by using GR, and GR/HRP/chit modified electrode was prepared. The electrochemical behaviors of GR/HRP/chit/GCE were studied by many electrochemical methods. ImmobilizedHRPshowed a pair of stable redox waves, and oxidation peak was very small, the reduction of peak potential for 0.33 V vs. SCE and retained its bioelectrocatalytic activity for the reduction of H2O2. At the same time, a series of related parameters of the enzyme electrical activity were calculated, further experimental results reflected the enzyme mechanism in the process of reaction.

Microaerophilic Symmetric Reductive Cleavage of Reactive Azo Dye—Remazole Brilliant Violet 5R by Consortium VIE6: Community Synergism

2016 ◽  
Vol 180 (6) ◽  
pp. 1029-1042 ◽  
Author(s):  
Binal Shah ◽  
Kunal Jain ◽  
Hardik Jiyani ◽  
Venkata Mohan ◽  
Datta Madamwar
Keyword(s):  
Azo Dye ◽  
Reductive Cleavage
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