지방산과 인지질(DOPC)의 혼합 LB막의 광이성질화 현상에 관한 연구

• 영문명: Photoisomerization of Mixture LB Films of Fatty Acid and Phospholipid(DOPC)
• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: 박근호(Park KeunHo) 심경재(Shim KyoungJea) 김남석(Kim NamSeok)
• 간행물 정보: 『한국응용과학기술학회지』한국유화학회지 제19권 제1호, 43~48쪽, 전체 6쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2002.03.31

영문 초록

We carried out this subject to observe photoisomerization using 1,2-dioleoyl-sn- glycero-3-phosphocholine(DOPC) mixed with fatty acid containing azobenzene group which has reversible to cis-trans by light irradiation. Spreading solutions for the LB films were prepared in chloroform(5.0x10^-5mol/L).We investigated the photoisomerization and property of the organic ultra thin film of fatty acid containing azobenzene was prepared on the hydrophilic ITO(idium tin oxide) glass plate by LB method. As a result, the absorption spectra of 8A5H and DOPC of mixture LB films was induced to photoisomerization by alternating irradiation of ultraviolet and visible light, because the condensation of pure azobenzene monolayers was loosened by the introduction of phospholipid into the monolayers, and the molecular high aggregation in pure azobenzene monolayers is also weakened by the introduction of phospholipid. We found that it was reversibly induced to cis-trans photoisomerization in several solvents and mixture LB films.

키워드

Fatty acid DOPC 1,2-dioleoyl-sn-glycero-3-phosphocholine LB film Light irradiation Photoisomerization