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http://dx.doi.org/10.12925/jkocs.2014.31.3.359

A Study on the Electrochemical Properties of Langmuir-Blodgett Film Mixed with Saturated Fatty Acid and Phospholipid(DMPC)  

Woo, Seong-Hyup (Dept. of Chemical Engineering, Changwon National University)
Park, Keun-Ho (Dept. of Chemical Engineering, Changwon National University)
Publication Information
Journal of the Korean Applied Science and Technology / v.31, no.3, 2014 , pp. 359-366 More about this Journal
Abstract
We investigated an electrochemical properties for Langmuir-Blodgett (LB) films of saturated fatty acid and phospholipid(L-${\alpha}$-dimyristoylphosphatidyl choline, DMPC) mixture. LB films of saturated fatty acid and DMPC monolayer were deposited by the LB method on the indium tin oxide(ITO) glass. The electrochemical properties measured by cyclic voltammetry with three-electrode system(an Ag/AgCl reference electrode, a platinum wire counter electrode and LB film-coated ITO working electrode) in $NaClO_4$ solution. As a result, monolayer LB films of saturated fatty acid and phospholipid mixture was appeared on irreversible process caused by the oxidation current from the cyclic voltammogram. Diffusion coefficient (D) of saturated fatty acid and DMPC mixture(molar ratio 1:1, C12, C14, C16, C18) was calculated $1.2{\times}10^{-3}$, $2.1{\times}10^{-3}$, $1.4{\times}10^{-4}$ and $1.1{\times}10^{-3}cm^2/s$ in 0.05 N $NaClO_4$ solution, respectively.
Keywords
saturated fatty acid-phospholipid mixture; Langmuir-Blodgett(LB) film; oxidation current; cyclic voltammetry; Diffusion coefficient;
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