Molecular Recognition of Protonated Polyamines at Calix[4]Crown-5 Self-Assembled Monolayer Modified Electrodes by Impedance Measurements

2007 ◽  
Vol 79 (5) ◽  
pp. 1890-1896 ◽  
Author(s):  
Jin-Young Park ◽  
Byung-Cheol Kim ◽  
Su-Moon Park
Keyword(s):  
Molecular Recognition ◽  
Modified Electrodes ◽  
Self Assembled Monolayer ◽  
Impedance Measurements ◽  
Self Assembled

Charge Transfer Property of Self-Assembled Viologen Derivative by Electrochemical Quartz Crystal Microbalance Response

2006 ◽  
Vol 6 (11) ◽  
pp. 3657-3660 ◽  
Author(s):  
Dong-Yun Lee ◽  
A. K. M. Kafi ◽  
Sang-Hyun Park ◽  
Young-Soo Kwon
Keyword(s):  
Charge Transfer ◽  
Quartz Crystal Microbalance ◽  
Quartz Crystal ◽  
Modified Electrodes ◽  
Electrochemical Quartz Crystal Microbalance ◽  
Frequency Change ◽  
Self Assembled Monolayer ◽  
Transfer Property ◽  
Redox Peak ◽  
Self Assembled

Viologen modified electrodes have been extensively investigated with quartz crystal microbalance (QCM), which has been known as a nano-gram order mass detector, because of their highly reversible electrochemical properties, especially the first reduction-oxidation cycle of V2+ ↔ V•+. The purpose of this work was to study the charge transfer characteristics of self-assembled monolayer (SAM) by changing electrolyte solutions where the cations and anions are different. The redox peak currents were nearly equal charges during redox processes and showed an excellent linear interrelation between the scan rates and second redox peak currents. The charge transfer of self-assembled viologen monolayer was determined by the mass change during the cyclic voltammetry (CV). The total frequency change was about 17.8 Hz, 19.6 Hz, 9.5 Hz, and 8.4 Hz. From this data, we could know the transferred mass was about 19.0 ng, 20.9 ng, 10.2 ng, and 9.0 ng. Finally, the electrochemical quartz crystal microbalance (EQCM) has been employed to monitor the electrochemically induced adsorption of self-assembled monolayer.

scholarly journals Development of a DNA Sensor Based on Alkanethiol Self- Assembled Monolayer-Modified Electrodes

Sensors ◽  
2005 ◽  
Vol 5 (6) ◽  
pp. 344-363 ◽  
Author(s):  
Óscar Loaiza ◽  
Susana Campuzano ◽  
María López-Berlanga ◽  
María Pedrero ◽  
José Pingarrón
Keyword(s):  
Modified Electrodes ◽  
Dna Sensor ◽  
Self Assembled Monolayer ◽  
Self Assembled

Development of amperometric biosensors using thiolated tetrathiafulvalene-derivatised self-assembled monolayer modified electrodes

2008 ◽  
Vol 134 (2) ◽  
pp. 974-980 ◽  
Author(s):  
Susana Campuzano ◽  
Vanessa Escamilla-Gómez ◽  
M. Ángeles Herranz ◽  
María Pedrero ◽  
José M. Pingarrón
Keyword(s):  
Modified Electrodes ◽  
Amperometric Biosensors ◽  
Self Assembled Monolayer ◽  
Self Assembled

An electro-active system of immuno-assay (EASI assay) utilising self assembled monolayer modified electrodes

2001 ◽  
Vol 16 (9-12) ◽  
pp. 875-885 ◽  
Author(s):  
Robert Porter ◽  
Paul van der Logt ◽  
Steven Howell ◽  
Marika Kyröläinen-Reay ◽  
Andy Badley
Keyword(s):  
Modified Electrodes ◽  
Active System ◽  
Self Assembled Monolayer ◽  
Self Assembled ◽  
Immuno Assay
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