Electrooxidation of Ascorbic Acid on a Polyaniline-Deposited Nickel Electrode:  Surface Modification of a Non-Platinum Metal for an Electrooxidative Analysis

2002 ◽  
Vol 74 (21) ◽  
pp. 5531-5537 ◽  
Author(s):  
Rajendra Prasad Kalakodimi ◽  
Munichandraiah Nookala
Keyword(s):  
Ascorbic Acid ◽  
Surface Modification ◽  
Electrode Surface ◽  
Platinum Metal ◽  
Nickel Electrode

Scanning probe lithography for electrode surface modification

1999 ◽  
Vol 473 (1-2) ◽  
pp. 230-234 ◽  
Author(s):  
Hiroyuki Sugimura ◽  
Osamu Takai ◽  
Nakagiri Nakagiri
Keyword(s):  
Surface Modification ◽  
Electrode Surface ◽  
Scanning Probe ◽  
Scanning Probe Lithography

Electrode surface modification of graphene-MnO2 supercapacitors using molecular dynamics simulations

2020 ◽  
Vol 26 (9) ◽  
Author(s):  
Musanna Galib ◽  
Mohammad Mozammal Hosen ◽  
Joyanta K. Saha ◽  
Md. Mominul Islam ◽  
Shakhawat H. Firoz ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Surface Modification ◽  
Molecular Dynamics Simulations ◽  
Electrode Surface ◽  
Dynamics Simulations

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.

scholarly journals Effects of electrode surface modification with chlorotoxin on patterning single glioma cells

2011 ◽  
Vol 13 (19) ◽  
pp. 8953 ◽  
Author(s):  
Fareid Asphahani ◽  
Xiaohao Zheng ◽  
Omid Veiseh ◽  
Myo Thein ◽  
Jian Xu ◽  
...  
Keyword(s):  
Surface Modification ◽  
Electrode Surface ◽  
Glioma Cells

Organosilasesquioxane-laponite clay sols: a versatile approach for electrode surface modification

1996 ◽  
Vol 401 (1-2) ◽  
pp. 253-256 ◽  
Author(s):  
L. Coche-Guérente ◽  
S. Cosnier ◽  
V. Desprez ◽  
P. Labbé ◽  
D. Petridis
Keyword(s):  
Surface Modification ◽  
Electrode Surface
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