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Skin lipids: localization of ceramide and fatty acid in the unit cell of the long periodicity phase.
The lipid matrix of the skin's stratum corneum plays a key role in the barrier function, which protects the body from desiccation. The lipids that make up this matrix consist of ceramides,Expand
Measurement of sugar depletion from uncharged lamellar phases by SANS contrast variation
We applied small-angle neutron scattering (SANS) contrast variation to samples where a microphase separation occurred. The samples contain multilamellar vesicles in equilibrium with excess solventExpand
Self-assembly of regular hollow icosahedra in salt-free catanionic solutions
It is shown that in salt-free mixtures of anionic and cationic surfactants, such bilayers can self-assemble into hollow aggregates with a regular icosahedral shape, which are larger than any known icosahedra protein assembly or virus capsid. Expand
Disposition of ceramide in model lipid membranes determined by neutron diffraction.
The lipid matrix present in the uppermost layer of the skin, the stratum corneum, plays a crucial role in the skin barrier function. The lipids are organized into two lamellar phases. To gain moreExpand
SANS Study of Asphaltene Aggregation: Concentration and Solvent Quality Effects
The structure of asphaltene solutions in toluene was studied by small-angle neutron scattering (SANS) as a function of temperature and concentration. Temperature alters solvent quality, flocculationExpand
Localization of cholesterol and fatty acid in a model lipid membrane: a neutron diffraction approach.
A molecular model is proposed for the arrangement of the lipids within the unit cell of the intercellular lipid matrix of the skin's stratum corneum, which is made up of ceramides, free fatty acids, and cholesterol. Expand
Stratum corneum lipid matrix: Location of acyl ceramide and cholesterol in the unit cell of the long periodicity phase.
The extracellular lipid matrix in the skin's outermost layer, the stratum corneum, is crucial for the skin barrier. The matrix is composed of ceramides (CERs), cholesterol (CHOL) and free fatty acidsExpand
Structure of Latex−Silica Nanocomposite Films: A Small-Angle Neutron Scattering Study
We report on the synthesis and structure of silica-filled latex films. The main stage of the synthesis consists of physicochemical manipulations of colloidal solutions of nanosilica and nanolatexExpand
Clay Swelling: New Insights from Neutron-Based Techniques
Clayey materials are complex hierarchical and deformable porous media whose structure and organization vary at different spatial scales depending on external conditions, in particular water activity.Expand
Binding of actin filaments to charged lipid monolayers: Film balance experiments combined with neutron reflectivity
Abstract:The binding of polymerised actin--a prototype of semi-flexible macromolecule--to lipid monolayers is studied by neutron reflectivity to deduce the average thickness, the interfacialExpand