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Spontaneous vesicle formation by mixed surfactants

  • S. A. Safran
  • F. C. MacKintosh
  • P. A. Pincus
  • D. A. Andelman
Micelles
Part of the Progress in Colloid & Polymer Science book series (PROGCOLLOID, volume 84)

Abstract

Although single surfactants rarely form vesicles spontaneously, mixtures of two surfactants can lead to spontaneous vesicle formation. By considering the curvature elasticity of the surfactant bilayer, we show theoretically how the energetic stabilization of mixed vesicles can occur. Interactions between the two species (of the proper sign and magnitude) are crucial to stabilizing these vesicles. These interactions lead to composition asymmetries and effective spontaneous curvatures of the inner and outer layers that are of equal and opposite signs.

Key words

Vesicle surfactant selfassociation 

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References

  1. 1.
    Kaler EW, Murthy AK, Rodriguez BE, Zasadzinski JAN (1989) Science 245:1371CrossRefGoogle Scholar
  2. 2.
    Carnie S, Israelachvili JN, Pailthorpe BA (1979) Biochim et Biophys Acta 554:340CrossRefGoogle Scholar
  3. 3.
    Gabriel NE, Roberts MF (1984) Biochemistry 23:4011; Hargreaves WR, Deamer DW (1978) Biochemistry 17:3759CrossRefGoogle Scholar
  4. 4.
    Miller DD, Bellare JR, Kaneko T, Evans DF (1988) Langmuir 4:1363 and J Phys Chem, in pressCrossRefGoogle Scholar
  5. 5.
    Jain MK, de Haas GH (1981) Biochim et Biophys 642:203; Almong S, Kushnir T, Nir S, Lichtenberg D (1986) Biochemistry 25:6597CrossRefGoogle Scholar
  6. 6.
    Helfrich W (1973) Z Naturforsch 28a:693 and in J de Phys (Paris) 47:321 (1986)Google Scholar
  7. 7.
    Safran SA, Pincus P, Andelman D (1990) Science 248:354CrossRefGoogle Scholar
  8. 8.
    Safran SA, Pincus P, Andelman D, MacKintosh FC (1990) Phys Rev A 43:107 (1991)Google Scholar
  9. 9.
    Israelachvili JN, Mitchell DJ, Ninham BW (1972) Trans Far Soc II 72:1525CrossRefGoogle Scholar
  10. 10.
    Israelachvili J, Mitchell DJ, Ninham BW (1977) Biochim et Biophys Acta 470:185CrossRefGoogle Scholar
  11. 11.
    A unified theory which accounts for both the curvature energy and the in-plane interactions is given in F. C. MacKintosh, S. A. Safran, P. Pincus, to be publishedGoogle Scholar
  12. 12.
    Wang ZG, to be publishedGoogle Scholar
  13. 13.
    Kaler EW, unpblishedGoogle Scholar

Copyright information

© Dr. Dietrich Steinkopff Verlag GmbH & Co. KG 1991

Authors and Affiliations

  • S. A. Safran
    • 1
    • 4
  • F. C. MacKintosh
    • 1
  • P. A. Pincus
    • 2
  • D. A. Andelman
    • 3
  1. 1.Exxon Research and EngineeringAnnandaleUSA
  2. 2.Materials DepartmentUniversity of CaliforniaSanta BarbaraUSA
  3. 3.Raymond and Beverly Sackler Faculty of Exact Sciences, School of Physics and AstronomyTel Aviv UniversityRamat AvivIsrael
  4. 4.Department of Polymer ResearchWeizmann InstituteRehovotIsrael

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