Neutron scattering from ganglioside micelles

  • L. Cantú
  • M. Corti
  • V. Degiorgio
  • R. Piazza
  • A. Rennie
Amphiphile Solutions
Part of the Progress in Colloid & Polymer Science book series (PROGCOLLOID, volume 76)


Dilute solutions of ionic micelles formed by a biological glycolipid (the ganglioside GM1) have been investigated at various ionic strengths by small angle neutron scattering. The size and shape of the GM1 micelle is not appreciably affected by added salt concentration in the range 0–100 mMNaCl. Despite the fact that the solute concentration is below 0.5 %, with no added salt the structure factor shows a pronounced peak at a value k m which roughly corresponds to 2π/d, where d is the interparticle distance. From the height of peak we derive the electric charge Z of the micelle by fitting the data with a theoretical calculation which uses a screened Coulomb potential for the intermicellar interaction, and the hypernetted chain approximation for the calculation of the radial distribution function. The experimental k m is somewhat larger than the theoretical one. This effect could be connected with the nonsphericity of GM1 micelles.

Key words

Ganglioside micelles in water neutron scattering influence of NaCl interparticle distance electric charge of micelles micellar interactions sphericity of micelles 


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  1. 1.
    Corti M, Degiorgio V., Ghidoni R, Sonnino S, Tettamanti G (1980) Chem Phys Lipids 26:225CrossRefGoogle Scholar
  2. 2.
    Cantú L, Corti M, Sonnino S, Tettamanti G (1986) Chem Phys Lipids 41:315CrossRefGoogle Scholar
  3. 3.
    Tettamanti G, Sonnino S, Ghidoni R, Masserini M, Venerando B (1985) In: Degiorgio V, Corti M (eds) Physics of Amphiphiles, Micelles, Vesicles and Microemulsions. North-Holland, amsterdam, p 607Google Scholar
  4. 4.
    Cantú L, Corti M, Degiorgio V (1986) Europhys Lett 2:673CrossRefGoogle Scholar
  5. 5.
    Cantú L, Corti M, Degiorgio V (1987) Faraday Discuss Chem Soc 83:287CrossRefGoogle Scholar
  6. 6.
    Hayter JB (1985) In: Degiorgio V and Corti M (eds) PHysics of Amphiphiles, Micelles, Vesicles and Microemulsions. North-Holland, Amsterdam, p 59; Chen S-H (1985) ibid, p 281. (These articles provide a general discussion about the application of neutron scattering to micellar solutions)Google Scholar
  7. 7.
    Pusey PN, Tough RJA (1985) In: Pecora R (ed) Dynamic Light Scattering, Applications of Photon Correlation Spectroscopy. Plenum Press, New York, p 85Google Scholar
  8. 8.
    Kremer K, robbins MO, Grest GS (1986) Phys Rev Lett 57:2694CrossRefGoogle Scholar
  9. 9.
    Zulauf M, Weckström K, Hayter JB, Degiorgio V, Corti M (1985) J Phys Chem 89:3411CrossRefGoogle Scholar
  10. 10.
    Goodstein D (1975) States of Matter. Prentice Hall, New York, p 260Google Scholar
  11. 11.
    Schneider J, Karrer D, Dhont JKG, Klein R (1987) J Chem Phys 87:3008CrossRefGoogle Scholar

Copyright information

© Dr. Dietrich Steinkopff Verlag GmbH & Co. KG 1988

Authors and Affiliations

  • L. Cantú
    • 1
  • M. Corti
    • 3
  • V. Degiorgio
    • 3
  • R. Piazza
    • 3
  • A. Rennie
    • 2
  1. 1.Dipartimento di Chimica e Biochimica MedicaUniversità di MilanoMilanoItaly
  2. 2.Institut laue-LangevinGrenobleFrance
  3. 3.Departimento di Elettronica-Sezione di Fisica AppplicataUniversitá di PaviaPaviaItaly

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