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Journal ArticleDOI

Elastic Properties of Lipid Bilayers: Theory and Possible Experiments

W Helfrich
- 01 Dec 1973 - 
- Vol. 28, Iss: 11, pp 693-703
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TLDR
A theory of the elasticity of lipid bilayers is proposed and it is argued that in the case of vesicles (= closed bilayer films) the only elasticity controlling nonspherical shapes is that of curvature.
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This article is published in Zeitschrift für Naturforschung C.The article was published on 1973-12-01. It has received 4853 citations till now. The article focuses on the topics: Lipid bilayer mechanics & Lipid bilayer phase behavior.

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Journal ArticleDOI

Wetting and Spreading

TL;DR: In this article, the surface forces that lead to wetting are considered, and the equilibrium surface coverage of a substrate in contact with a drop of liquid is examined, while the hydrodynamics of both wetting and dewetting is influenced by the presence of the three-phase contact line separating "wet" regions from those that are either dry or covered by a microscopic film.
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Emulsions stabilised solely by colloidal particles

TL;DR: In this paper, the free energy of formation of emulsion drops covered with close-packed monolayers of monodisperse spherical particles was investigated and the possibility of preparing novel solid materials by evaporating solid-stabilised emulsions is also proposed.
Journal ArticleDOI

Configurations of fluid membranes and vesicles

TL;DR: In this article, the authors describe the systematic physical theory developed to understand the static and dynamic aspects of membrane and vesicle configurations, and the preferred shapes arise from a competition between curvature energy which derives from the bending elasticity of the membrane, geometrical constraints such as fixed surface area and fixed enclosed volume, and a signature of the bilayer aspect.
Journal ArticleDOI

Imaging coexisting fluid domains in biomembrane models coupling curvature and line tension

TL;DR: It is shown that high-resolution fluorescence imaging using two dyes preferentially labelling different fluid phases directly provides a correlation between domain composition and local membrane curvature, which is able to provide experimental estimates of boundary tension between fluid bilayer domains.
Journal ArticleDOI

Physical principles of membrane organization.

TL;DR: An understanding of the physical principles that govern the molecular organization of membranes is essential for an understanding of their physiological roles since structure and function are much more interdependent in membranes than in, say, simple chemical reactions in solution.
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