Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/127916
Title: Electrochemical behaviour of mixed LB films of ubiquinone - DPPC
Author: Hoyo Pérez, Javier
Guaus Guerrero, Ester
Torrent Burgués, Juan
Sanz Carrasco, Fausto
Keywords: Voltametria
Electroquímica
Lípids
Química de superfícies
Microscòpia de força atòmica
Voltammetry
Electrochemistry
Lipids
Surface chemistry
Atomic force microscopy
Issue Date: Mar-2012
Publisher: Elsevier B.V.
Abstract: The structure and the electrochemical behaviour of Langmuir and Langmuir-Blodgett (LB) films of the biological ubiquinone-10 (UQ) and a mixture of dipalmytoilphosphatidylcholine (DPPC) and UQ at the molar ratios DPPC:UQ 5:1 and 10:1 have been investigated. The surface pressure-area isotherms of the Langmuir films and the AFM images of the LB films show the formation of a monolayer in the DPPC:UQ mixture till a certain surface pressure is attained, and then at higher surface pressures the UQ is progressively expelled. The cyclic voltammograms of DPPC:UQ LB films formed on indium tin oxide, ITO, at different surface pressures show one reduction and one oxidation peak at low surface pressures, but two or even more reduction and oxidations peaks at medium and high surface pressures. The electrochemical behaviour is correlated with the film structure.
Note: Versió postprint del document publicat a: https://doi.org/10.1016/j.jelechem.2012.01.020
It is part of: Journal of Electroanalytical Chemistry, 2012, vol. 669, p. 6-13
URI: http://hdl.handle.net/2445/127916
Related resource: https://doi.org/10.1016/j.jelechem.2012.01.020
ISSN: 1572-6657
Appears in Collections:Articles publicats en revistes (Institut de Bioenginyeria de Catalunya (IBEC))
Articles publicats en revistes (Ciència dels Materials i Química Física)

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