Immobilization of a novel synthesized Schiff base on the surface of a gold electrode for the electrochemical study of adrenaline

2015 ◽  
Vol 7 (12) ◽  
pp. 4995-5005
Author(s):  
Ebrahim Honarmand ◽  
Mohammad Hassan Motaghedifard
Keyword(s):  
Schiff Base ◽  
Gold Electrode ◽  
Electrochemical Study ◽  
Self Assembled Monolayer ◽  
Bare Gold Electrode ◽  
Self Assembled ◽  
Bare Gold

A self-assembled monolayer of 2-[({2-[(2-{[(Z)-1-(2-hydroxy phenyl) methylidene] amino} phenyl) disulfanyl] phenyl} imino) methyl] phenol was fabricated on a bare gold electrode (SITP-Au SAM electrode).

THE ELECTROCHEMICAL STUDY OF SELF-ASSEMBLED 1,3-PROPANEDITHIOL ON GOLD

2007 ◽  
Vol 14 (01) ◽  
pp. 111-115
Author(s):  
YUQING MIAO ◽  
JIANRONG CHEN ◽  
XIAOHUA WU ◽  
KEMING FANG
Keyword(s):  
Gold Electrode ◽  
Modified Electrodes ◽  
Gold Surface ◽  
Electrochemical Study ◽  
Potential Range ◽  
Electrochemical Behaviors ◽  
Bare Gold Electrode ◽  
Self Assembled ◽  
Bare Gold

The electrochemical behaviors of bare/dithiol-modified gold electrode were studied in the PBS solution with/without dithiols. A pair of current peaks between -1.4 and -0.5 V is related to dithiol adsorption or re-adsorption. An oxidative peak at 0.37 V accompanied by a slight peak at 0.03 V is observed between -0.5 and 0.7 V for the bare gold electrode in the thiol solution, which is due to the formation of bilayer. When the potential is scanned to a very positive value at 1.2 V, a new oxidative peak at 1.07 V appears for the bare gold electrode in the dithiol solution or the PBS solution. The assembled dithiols are desorbed, and gold surface is exposed. The study indicates that the 1,3-propanedithiol modified electrodes should be used during the potential range of -0.8 to 0.8 V to keep the assembled layer stable.

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