Electrostatic Control of Structure in Self-Assembled Membranes
نویسندگان
چکیده
منابع مشابه
Computer simulations of self-assembled membranes.
Molecular dynamics simulations in three dimensions of particles that self-assemble to form two-dimensional, membrane-like objects are presented. Anisotropic, multibody forces, chosen so as to mimic real interactions between amphiphilic molecules, generate a finite rigidity and compressibility of the assembled membranes, as well as a finite line tension at their free edges. This model and its ge...
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The bending moduli and line tension of bilayer membranes self-assembled from diblock copolymers was calculated using the self-consistent field theory. The limitation of the linear elasticity theory (Helfrich model) was evaluated by calculating fourthorder curvature moduli in high curvature systems. It was found that in highly curved membranes, the fourth-order contributions to the bending energ...
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Control of function in self-assembled molecular structures is a major challenge in supramolecular chemistry. [ 1–4 ] Ion channels, for instance, are pore-forming nanostructures typically comprising multiple molecular subunits assembled via noncovalent interactions. [ 5 ] These pores function by facilitating a fl ux of ions across the hydrophobic barrier of a lipid bilayer. For over a decade, ma...
متن کاملElastic properties and line tension of self-assembled bilayer membranes.
The elastic properties of a self-assembled bilayer membrane are studied using the self-consistent field theory, applied to a model system composed of flexible amphiphilic chains dissolved in hydrophilic polymeric solvents. Examining the free energy of bilayer membranes with different geometries allows us to calculate their bending modulus, Gaussian modulus, two fourth-order membrane moduli, and...
متن کاملFormation and Structure of Self-Assembled Monolayers.
The field of self-assembled monolayers (SAMs) has witnessed tremendous growth in synthetic sophistication and depth of characterization over the past 15 years.1 However, it is interesting to comment on the modest beginning and on important milestones. The field really began much earlier than is now recognized. In 1946 Zisman published the preparation of a monomolecular layer by adsorption (self...
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ژورنال
عنوان ژورنال: Small
سال: 2013
ISSN: 1613-6810
DOI: 10.1002/smll.201300254