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 Organic Ultra Thin Films of Fatty Acid and Phospholipid Mixture

지방산과 인지질 혼합 유가초박막의 전기화학적 특성

  • Park, Keun-Ho (Dept. of Chemical Engineering, Changwon National University) ;
  • Choi, Sung-Hyun (Dept. of Chemical Engineering, Changwon National University) ;
  • Son, Tae-Churl (Dept. of Chemical Engineering, Changwon National University) ;
  • Song, Ju-Yeong (Dept. of Chemical Engineering, Changwon National University)
  • 박근호 (창원대학교 공과대학 화공시스템공학과) ;
  • 최성현 (창원대학교 공과대학 화공시스템공학과) ;
  • 손태철 (창원대학교 공과대학 화공시스템공학과) ;
  • 송주영 (창원대학교 공과대학 화공시스템공학과)
  • Published : 2006.06.30
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Abstract

We investigated the electrochemical properties for Langmuir-Blodgett (LB) films mixed with fatty acid (8A5H) and phospholipid (DLPE, DMPC, and DPPA). LB films of 8A5H monolayer and 8A5H-phospholipid mixture were deposited using the Langmuir-Blodgett method on the indium tin oxide(ITO) glass. The electrochemical properties measured using cyclic voltammetry with 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 1.0 mol/L) of $NaClO_4$ solution. A measuring range was reduced from initial potential to -1350 mV, continuously oxidized to 1650 mV and measured to the initial point. The scan rate was 50, 100, 150 and 200 mV/s, respectively. As a result, LB films of fatty acid and phospholipid (8A5H/DLPE and DPPA) appeared irreversible process were caused by only the reduction current from the cyclic voltammogram and LB film of 8A5H-DMPC mixture was found to be caused by a reversible oxidation-reduction process.

Keywords

References

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