Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Electrochemical Properties of Langmuir-Blodgett(LB) Films of Fatty Acid Containing Azobenzene and $L-{\alpha}-dimyristoylphosphatidylcholine$ Mixture

아조벤젠기를 가진 지방산과 $L-{\alpha}-dimyristoylphosphatidylcholine$ 혼합 LB막의 전기화학적 특성

  • Park, Keun-Ho (Dept. of Chemical Engineering, Changwon National University) ;
  • Choi, Sung-Hyun (Dept. of Chemical Engineering, Changwon National University) ;
  • Song, Ju-Yeong (Dept. of Chemical Engineering, Changwon National University)
  • 박근호 (창원대학교 화공시스템공학과) ;
  • 최성현 (창원대학교 화공시스템공학과) ;
  • 송주영 (창원대학교 화공시스템공학과)
  • Published : 2005.12.31
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Abstract

We investigated the electrochemical properties for Langmuir-Blodgett (LB) films mixed with 4-octyl-4'-(5-carboxylpentamethyleneoxy)azobenzene (denoted as 8A5H) and $phospholipid(L-{\alpha}-dimyristoylphosphatidylcholine$, denoted as DMPC). LB films of 8A5H monolayer and 8A5H-DMPC were deposited by using the Langmuir-Blodgett method on the indium tin oxide(ITO) glass. The electrochemical properties measured by using cyclic voltammetry with a three_electrode system, an Ag/AgCl reference electrode, a platinum wire counter electrode and LB film-coated ITO working electrode at various concentrations(0.1, 0.5, and 1.0mol/L) of $NaClO_4$ solution. A measuring range was reduced from initial potential to -1350mV, continuously oxidized to 1650mV and measured to the initial point. The scan rates were 50, 100, 150 and 200mV/s, respectively. As a result, LB films of 8A5H monolayer appeared irreversible process caused by only the oxidation current from the cyclic voltammogram and LB films of 8A5H-DMPC mixture were found to be caused by a reversible oxidation-reduction process.

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References

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