Structure of lipid bilayers

Ionic sizes and born repulsive parameters in the NaCl-type alkali halides—II: The generalized Huggins-Mayer form☆

From a Landau theory the static scattering intensity distribution I(q) of microemulsions is obtained. As essential ingredient we have included a negative gradient term in the free energy expression. The form of I(q)∼(a2+c1q2+c2q4)−1 yields for a2>0, c1 0 a single broad scattering peak and a q−4 decay at large q, both properties experimentally observed for a variety of microemulsions containing comparable amounts of water and oil. The peak originates from the modulation in the corresponding space correlation function given by γ(r)=(d/2πr)⋅e−r/ξ⋅sin(2πr/d). It is shown that the scattering intensity relation describes experimental literature data remarkably well, using only three fit parameters.

Origin of the scattering peak in microemulsions

Probing surface and interface morphology with Grazing Incidence Small Angle X-Ray Scattering

A poor divergence value in the paper by Smilgies [J. Appl. Cryst. (2009), 42, 1030–1034] is corrected.

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S. N. Bagchi

Papers

Direct analysis of diffraction by matter