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Lateral capillary forces between colloidal particles incorporated in liquid films or lipid bilayers

Interactions And Long-Range Order

Part of the Progress in Colloid & Polymer Science book series (PROGCOLLOID,volume 98)

Abstract

The lateral capillary force appears between particles protruding from a liquid film and its physical origin is the overlap of the menisci formed around the separate particles. In turn, the size and shape of a separate meniscus is determined by the wetting properties of the particle surface, i.e., by the intermolecular forces. Therefore, the lateral capillary interaction is operative between particles of size from 1 mm down to 10 nm. Here, we first report data for direct measurement of capillary forces between particles of millimeter and submillimeter size by means of a torsional balance. Next, we present theoretical calculationsd of the capillary interaction between much smaller particles confined in spherical thin liquid films (vesicles, liposomes, etc.). As a result, we obtain a strong interparticle attraction, which can bring about aggregation and ordering of the particles in consonance with the experimental observations.

Key words

  • Capillary forces
  • interaction between floating particles
  • particle aggregation
  • Pickering emulsions
  • two-dimensional crystallization

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© 1995 Dr. Dietrich Steinkopff Verlag GmbH & Co. KG

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Kralchevsky, P.A., Dushkin, C.D., Paunov, V.N., Denkov, N.D., Nagayama, K. (1995). Lateral capillary forces between colloidal particles incorporated in liquid films or lipid bilayers. In: Appell, J., Porte, G. (eds) Trends in Colloid and Interface Science IX. Progress in Colloid & Polymer Science, vol 98. Steinkopff. https://doi.org/10.1007/BFb0115199

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  • DOI: https://doi.org/10.1007/BFb0115199

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  • Publisher Name: Steinkopff

  • Print ISBN: 978-3-7985-1031-9

  • Online ISBN: 978-3-7985-1667-0

  • eBook Packages: Springer Book Archive