Microemulsions and the flexibility of oil/water interfaces

Gennes, P. G. de; Taupin, C.

doi:10.1021/j100210a011

Cited by 1,230 publications

(730 citation statements)

References 5 publications

Supporting

Mentioning

699

Contrasting

Unclassified

Order By: Relevance

“…Thermal fluctuations arise spontaneously in membrane systems on the scales above the de Gennes-Taupin persistence length: ξ = a ′ exp( 4πκ kB T ) [42]. When the elastic constants are of the order of k B T , the lenght ξ is in the range 10 − 100nm, and fluctuations become important.…”

Section: Polymers Anchored On a Constrained Membranementioning

confidence: 99%

Local entropic effects of polymers grafted to soft interfaces

Bickel

Jeppesen

Marques

2001

The European Physical Journal E

View full text Add to dashboard Cite

In this paper, we study the equilibrium properties of polymer chains end-tethered to a fluid membrane. The loss of conformational entropy of the polymer results in an inhomogeneous pressure field that we calculate for gaussian chains. We estimate the effects of excluded volume through a relation between pressure and concentration. Under the polymer pressure, a soft surface will deform. We calculate the deformation profile for a fluid membrane and show that close to the grafting point, this profile assumes a cone-like shape, independently of the boundary conditions. Interactions between different polymers are also mediated by the membrane deformation. This pair-additive potential is attractive for chains grafted on the same side of the membrane and repulsive otherwise.

show abstract

Section: Polymers Anchored On a Constrained Membranementioning

confidence: 99%

Local entropic effects of polymers grafted to soft interfaces

Bickel

Jeppesen

Marques

2001

The European Physical Journal E

View full text Add to dashboard Cite

show abstract

“…The thermal undulations lead to orientational decorrelation on a scale characterized by de Gennes' persistence length [2]. About fifteen years ago, one of us proposed that the decrease of correlation should be accompanied by a softening of the membrane.…”

Section: Introductionmentioning

confidence: 99%

Effect of thermal undulations on the bending elasticity and spontaneous curvature of fluid membranes

Pinnow

Helfrich

2000

The European Physical Journal E

View full text Add to dashboard Cite

We amplify previous arguments why mean curvature should be used as measure of integration in calculating the effective bending rigidity of fluid membranes subjected to a weak background curvature. The stiffening of the membrane by its fluctuations, recently derived for spherical shapes, is recovered for cylindrical curvature. Employing curvilinear coordinates, we then discuss stiffening for arbitrary shapes, confirm that the elastic modulus of Gaussian curvature is not renormalized in the presence of fluctuations, and show for the first time that any spontaneous curvature also remains unchanged.

show abstract

“…During the past fifteen years, studies on both theoretical and experimental aspects of microemulsions have provided a better understanding of the formation, properties, and phase behavior of microemulsions [7][8][9][10][11][12][13]. Due to their importance in various technological applications such as enhanced oil recovery, pharmaceutics, cosmetics, and nanoparticle synthesis, the structure and structural transitions of microemulsions have been extensively studied using X-ray and light scattering, ultracentrifugation, spin label probes, dielectric relaxation, fluorescence probes, and neutron scattering [14][15][16][17][18][19][20][21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%