Structure and Conformation of Lipid Membranes

A special issue of Membranes (ISSN 2077-0375). This special issue belongs to the section "Biological Membrane Composition and Structures".

Deadline for manuscript submissions: closed (30 November 2023) | Viewed by 2121

Special Issue Editors


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Guest Editor
Department of Applied Mathematics and Systems, Universidad Autónoma Metropolitana-Cuajimalpa, México, Mexico
Interests: elasticity of lipid membranes; nematic textures on curved surfaces

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Guest Editor
Department of Physical Chemistry, Complutense University of Madrid, 28040 Madrid, Spain
Interests: physical-chemistry of lipid membranes; liquid crystals on curves surfaces

Special Issue Information

Dear Colleagues,

The structure and conformation of lipid membranes has been a topic of interest for many years.  Recently there has been significant interest in analyzing the effect of inhomogeneities or asymmetries in the lipid monolayer or bilayer membrane distribution, to explain membrane morphologies that involve cytokinesis abscissions, budding, endocytosis, or even in the formation of membrane pores during exocytosis.

The aim of the Special Issue, Structure and Conformation of Lipid Membranes, is to highlight both theoretical and experimental advances that can shed light on the distribution of stresses  or elastic forces on these membrane morphologies.  We are pleased to invite you to submit original research articles as well as comprehensive reviews. Research areas may include (but are not limited to) the following: stress in lipid membranes, bilayer asymmetries, pores, budding transition, endocytosis, and cytokinesis.

We look forward to receiving your contributions. 

Dr. José Antonio Santiago
Prof. Dr. Francisco Monroy
Guest Editors

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Keywords

  • bilayer asymmetry
  • morphology of lipid membranes
  • stress in lipid membranes
  • pores, necks in lipid membrane
  • forces in lipid membranes

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Published Papers (1 paper)

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Research

23 pages, 1829 KiB  
Article
Inhomogeneous Canham–Helfrich Abscission in Catenoid Necks under Critical Membrane Mosaicity
by José Antonio Santiago and Francisco Monroy
Membranes 2023, 13(9), 796; https://doi.org/10.3390/membranes13090796 - 14 Sep 2023
Cited by 1 | Viewed by 1584
Abstract
The mechanical effects of membrane compositional inhomogeneities are analyzed in a process analogous to neck formation in cellular membranes. We cast on the Canham–Helfrich model of fluid membranes with both the spontaneous curvature and the surface tension being non-homogeneous functions along the cell [...] Read more.
The mechanical effects of membrane compositional inhomogeneities are analyzed in a process analogous to neck formation in cellular membranes. We cast on the Canham–Helfrich model of fluid membranes with both the spontaneous curvature and the surface tension being non-homogeneous functions along the cell membrane. The inhomogeneous distribution of necking forces is determined by the equilibrium mechanical equations and the boundary conditions as considered in the axisymmetric setting compatible with the necking process. To establish the role played by mechanical inhomogeneity, we focus on the catenoid, a surface of zero mean curvature. Analytic solutions are shown to exist for the spontaneous curvature and the constrictive forces in terms of the border radii. Our theoretical analysis shows that the inhomogeneous distribution of spontaneous curvature in a mosaic-like neck constrictional forces potentially contributes to the membrane scission under minimized work in living cells. Full article
(This article belongs to the Special Issue Structure and Conformation of Lipid Membranes)
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