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11 Result(s)

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  1. No Access

    Article

    Confined diffusion of hydrophilic probes inserted in lyotropic lamellar phases

    The dynamic behaviour of three hydrophilic probes (two dyes and one fluorescently-labelled protein) inserted in the water layers of lyotropic lamellar phases has been studied by confocal fluorescence recovery ...

    P. Moreau, D. van Effenterre, L. Navailles, F. Nallet… in The European Physical Journal E (2008)

  2. No Access

    Article

    Role of dislocation loops on the elastic constants of lyotropic lamellar phases

    We study the role of dislocation loops defects on the elasticity of lamellar phases by investigating the variation of the lamellar elastic constants, ¯ and K, induced by the proliferation of these defects. We foc...

    E. Freyssingeas, A. Martin, D. Roux in The European Physical Journal E (2005)

  3. No Access

    Chapter and Conference Paper

    Dynamical rheology of a lyotropic lamellar phase near an out-of-equilibrium transition

    This work deals with sustained oscillations of a complex fluid near a shear-induced transition. Rheological measurements of the onion texture near a layering transition are performed in a Couette cell. This co...

    J. -B. Salmon, A. Colin, S. Manneville… in Trends in Colloid and Interface Science XV… (2004)

  4. No Access

    Article

    Incorporating DNA in a lamellar phase: A Flory model

    Following an experimental work demonstrating that DNA pieces can be incorporated in large quantity in a neutral lamellar phase, we propose a theoretical model showing that finite-size rod-like particles can be...

    A. Colin, D. Roux in The European Physical Journal E (2002)

  5. No Access

    Article

    Anomalous elasticity of an ordered lamellar liquid foam

    We investigate experimentally the linear viscoelastic properties of a lamellar liquid foam as a function of the cell size and spatial organisation. The system consists of multilamellar vesicles generated by a ...

    J. Leng, F. Nallet, D. Roux in The European Physical Journal E (2001)

  6. No Access

    Article

    Swelling kinetics of a compressed lamellar phase

    We investigate how multilamellar vesicles prepared in a compressed state under flow return to equilibrium. The kinetics is studied by following the temporal evolution of the viscoelasticity after the shear is ...

    J. Leng, F. Nallet, D. Roux in The European Physical Journal E (2001)

  7. No Access

    Article

    Lamellar-to-nematic phase transition in a lipid-surfactant mixture

    A lyotropic system, consisting of a lecithin (DMPC) and a non-ionic surfactant (C12E5) in water was studied. The system exhibits a lamellar-to-nematic phase transition. The nematic phase appears as the temperatur...

    O. Dhez, S. König, D. Roux, F. Nallet, O. Diat in The European Physical Journal E (2000)

  8. No Access

    Article

    Undulation instability under shear: A model to explain the different orientations of a lamellar phase under shear?

    We study the effects of a dilation on a sheared smectic A phase. Through a linear analysis, we show that undulation may grow in the direction of the flow and of the vorticity as found in previous works. At hig...

    A.S. Wunenburger, A. Colin, T. Colin, D. Roux in The European Physical Journal E (2000)

  9. No Access

    Chapter and Conference Paper

    The Sponge State: A Striking Isotropic Liquid Phase

    Surfactants in solution may associate into two-dimensional aggregates (membranes) which self-organize either in liquid crystalline phases or, more surprisingly, in a liquid isotropic phase made of connected bi...

    D. Roux, M. E. Cates in Dynamics and Patterns in Complex Fluids (1990)

  10. No Access

    Chapter

    Critical Behavior in a Microemulsion System. II — Experimental Evidence for a Continuous Variation of Critical Exponents

    We present light scattering results obtained for a four-component microemulsion system in several distinct positions of a critical line. This line starts at a critical end point. The critical points were appro...

    A. M. Bellocq, P. Honorat, D. Roux in Surfactants in Solution (1986)

  11. No Access

    Chapter

    Critical Behavior in a Microemulsion System: I — Experimental Evidence for Field Like Variable

    Phase diagram analysis and light scattering results of quaternary and ternary mixtures provide evidence for the existence in the oil rich region of an apparent field variable related to composition: the water ...

    D. Roux, A. M. Bellocq in Surfactants in Solution (1986)