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	Domain observation and molecular orientation of chiral dipalmitoylphosphatidylcholine monolayer by Brewster angle microscopy and Maxwell displacement current
	Ou-yang, Wei ; Yamamoto, Tetsuya ; Aida, Takahiro ; Manaka, Takaaki ; Iwamoto, Mitsumasa
	2010-05-10 ; 2010-05-10
会议名称	THIN SOLID FILMS ; 7th International Conference on Nano-Molecular Electronics (ICNME2006) ; Kobe, JAPAN ; Web of Science
关键词	DPPC monolayer MDC behaviors domain shape chirality PHASE-TRANSITION WATER GENERATION INTERFACE Materials Science, Multidisciplinary Materials Science, Coatings & Films Physics, Applied Physics, Condensed Matter
中文摘要	To understand the relationship between molecular chirality and electrical properties of monolayers, Maxwell displacement current (MDC) behaviors and domain shapes of chiral DPPC monolayers composed of dextro-(D-)and levo-(L-)rotatory molecules at the air-water interface are investigated during monolayer compression using MDC measurement and the Brewster angle microscopy (BAM) system. The experimental results show that for DPPC monolayers of the two pure enantiomers, the pi-A isotherms and the MDC behaviors are similar to each other, while the domain patterns of them are mirror shapes of different sizes. This reveals that MDC behaviors due to molecular spontaneous polarization have no relation to chirality but domain shapes closely depend on the molecular chirality. Moreover, the observed domain shapes verify the domain shape theory which was recently developed by Iwamoto et al. [M. Iwamoto, Z.C. Ou-Yang, Phy. Rev. Letts, 93 (2004) 206101. (c) 2007 Elsevier B.V All rights reserved.
会议录出版者	ELSEVIER SCIENCE SA ; LAUSANNE ; PO BOX 564, 1001 LAUSANNE, SWITZERLAND
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/18422]
专题	清华大学
推荐引用方式 GB/T 7714	Ou-yang, Wei,Yamamoto, Tetsuya,Aida, Takahiro,et al. Domain observation and molecular orientation of chiral dipalmitoylphosphatidylcholine monolayer by Brewster angle microscopy and Maxwell displacement current[C]. 见:THIN SOLID FILMS, 7th International Conference on Nano-Molecular Electronics (ICNME2006), Kobe, JAPAN, Web of Science.

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