Bilayer Membranes of Triple-Chain Ammonium Amphiphiles

Toyoki Kunitake, Nobuo Kimizuka, Nobuyuki Higashi, Naotoshi Nakashima

Research output: Contribution to journalArticle

103 Citations (Scopus)

Abstract

Ten ammonium amphiphiles which possess three long-chain alkyl tails (C12 or C16) were prepared. They form clear aqueous dispersions upon sonication. Electron microscopy and light scattering experiments indicated the formation of huge bilayer aggregates except for one case. These bilayers undergo the characteristic crystal-to-liquid crystal-phase transition, as confirmed by differential scanning calorimetry (DSC) and by fluorescence depolarization of a diphenylhexatriene probe. Riboflavin, a water-soluble fluorescent probe, was shown to be trapped in bilayer vesicles of some triple-chain amphiphiles. Mixing of these bilayers with those of single-chain and double-chain amphiphiles was examined by DSC and by absorption spectroscopy. Together with our previous results, the present study establishes that the bilayer formation is a general phenomenon that is observable for a wide variety of synthetic amphiphiles.

Original languageEnglish
Pages (from-to)1978-1983
Number of pages6
JournalJournal of the American Chemical Society
Volume106
Issue number7
DOIs
Publication statusPublished - Jan 1 1984

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Amphiphiles
Differential Scanning Calorimetry
Ammonium Compounds
Diphenylhexatriene
Membranes
Liquid Crystals
Sonication
Riboflavin
Phase Transition
Fluorescent Dyes
Differential scanning calorimetry
Spectrum Analysis
Electron Microscopy
Fluorescence
Light
Water
Depolarization
Dispersions
Absorption spectroscopy
Light scattering

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Bilayer Membranes of Triple-Chain Ammonium Amphiphiles. / Kunitake, Toyoki; Kimizuka, Nobuo; Higashi, Nobuyuki; Nakashima, Naotoshi.

In: Journal of the American Chemical Society, Vol. 106, No. 7, 01.01.1984, p. 1978-1983.

Research output: Contribution to journalArticle

Kunitake, Toyoki ; Kimizuka, Nobuo ; Higashi, Nobuyuki ; Nakashima, Naotoshi. / Bilayer Membranes of Triple-Chain Ammonium Amphiphiles. In: Journal of the American Chemical Society. 1984 ; Vol. 106, No. 7. pp. 1978-1983.
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