Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Research of the characteristics of LB Film using SAW Device

SAW 디바이스를 이용한 LB초박막의 특성연구

  • 김종민 (공과대학 화학공학과) ;
  • 김기영 (공과대학 화학공학과) ;
  • 장상목 (공과대학 화학공학과) ;
  • 신훈규 (동아대학교 공과대학 전기공학과) ;
  • 권영수 (동아대학교 공과대학 전기공학과)
  • Published : 1994.05.01
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Abstract

A surface acoustic wave(SAW) sensor for the detection of odorants has been constructed by depositing various phospholipids and fatty acids onto the surface of the SAW device. Applying the Langmuir-Blodgett technique. it was possible to deposit the optimal number of layer which was found to be between 10 and 20. The characteristics of a SAW device operating at 310 MHz deposited with phosphatidyl choline were analysed. Menthone, amylacetate, acetion, and other organic gases sho7\\\\`ed different affinities to the coated lipids. An explanation is given for differant odorant affinities based on the monolayer properties of phospholipids. The identification of odorants depending on the type of lipid used for coating is discussed in terms of a comparison of their normalized resonant frequency chi It pat terns. Using a number of different lipid-coated SAW devices. odorants can be identified by a computerized pattern recognition algorithm.

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