Can hydrophobic oils spread on water as condensed Langmuir monolayers?

Yuka Tabe, Takahiro Yamamoto, Isa Nishiyama, Keiko M. Aoki, Makoto Yoneya, Hiroshi Yokoyama

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

In contrast to the long-held belief that only amphiphilic molecules can form stable Langmuir monolayers, we show here that even nonvolatile hydrophobic oils can be reversibly spread into liquid-condensed Langmuir films, if the material is in or close to liquid-crystal phase in the bulk. The stability origin of the hydrophobic Langmuir monolayers is entropic, rather than energetic as in the stabilization of common amphiphilic monolayers, primarily driven by the interaction between the polar head and water. This extraordinary spreading mechanism may have impact on the nature of colloidal and biomembrane stabilities.

Original languageEnglish
Pages (from-to)12089-12092
Number of pages4
JournalJournal of Physical Chemistry B
Volume106
Issue number47
DOIs
Publication statusPublished - 2002 Nov 28
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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  • Cite this

    Tabe, Y., Yamamoto, T., Nishiyama, I., Aoki, K. M., Yoneya, M., & Yokoyama, H. (2002). Can hydrophobic oils spread on water as condensed Langmuir monolayers? Journal of Physical Chemistry B, 106(47), 12089-12092. https://doi.org/10.1021/jp026724+