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Behavior of an Adsorbed Phospholipid Monolayer Submitted to Prolonged Periodical Surface Density Variations

Authors

  • Phuc Nghia Nguyen,

    1. Université de Strasbourg, SOFFT Team, Institut Charles Sadron (UPR CNRS 22), 23 rue du Loess. 67034 Strasbourg Cedex (France)
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  • Dr. Gilles Waton,

    1. Université de Strasbourg, SOFFT Team, Institut Charles Sadron (UPR CNRS 22), 23 rue du Loess. 67034 Strasbourg Cedex (France)
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  • Prof. Thierry Vandamme,

    1. Laboratoire de Conception et Application de Molécules Bioactives (CNRS UMR 7199), Université de Strasbourg, 74 Route du Rhin, 67401 Illkirch Cedex (France)
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  • Dr. Marie Pierre Krafft

    Corresponding author
    1. Université de Strasbourg, SOFFT Team, Institut Charles Sadron (UPR CNRS 22), 23 rue du Loess. 67034 Strasbourg Cedex (France)
    • Université de Strasbourg, SOFFT Team, Institut Charles Sadron (UPR CNRS 22), 23 rue du Loess. 67034 Strasbourg Cedex (France)

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  • This work was supported by the European Community’s 7th Framework Program (grant n° NMP3-SL-2008-214032). We thank the French Research Agency (ANR, grant n° 2010-BLAN-0816-01) and the University of Strasbourg for financial support, and Teclis (Longessaigne, France) for technical help. P.N.N acknowledges the European Commission for a research fellowship and the GIS-Fluor for a travel grant.

Abstract

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Prolonged periodical variations of the surface density of a film of phospholipids adsorbed on the surface of an air bubble and in contact with a dispersion of phospholipid vesicles (orange) lead to accelerated phospholipid adsorption and lowering of the interfacial tension. The phenomenon is assigned to a coupling between the periodical variation of the surface density of the phospholipid at the interface and its dilute-to-condensed (LE-to-LC) phase transition.

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