Linear Instability Analysis and Mechanical Interfacial Tension

Based on results from linear hydrodynamic analysis, a study about the influence of mechanical contribution to the interfacial tension on the mechanical stability was performed for an erythrocyte membrane model. This analysis gave the characteristic dispersion equation by solving the linearized dynam...

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Published in:Journal of theoretical biology 1999-01, Vol.196 (2), p.169-179
Main Authors: Soares, Karol Maia, Maghelly, Célia Cortez
Format: Article
Language:English
Subjects:
Cell Membrane - physiology
Erythrocyte Membrane - physiology
Linear Models
Lipid Bilayers
Models, Biological
Surface Tension
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Maghelly, Célia Cortez
description Based on results from linear hydrodynamic analysis, a study about the influence of mechanical contribution to the interfacial tension on the mechanical stability was performed for an erythrocyte membrane model. This analysis gave the characteristic dispersion equation by solving the linearized dynamic equations. Values of the parameters related to the erythrocyte membrane were used to obtain the critical stability curves as a function of mechanical interfacial tension. The numerical values from this study were applied to calculate probable values of the total interfacial tension (sum of electrical and mechanical contributions) and the results were compared with values from literature. According to this model, the mechanical stability of membrane increases with the increasing of the mechanical surface tension. The values suggested by hydrodynamic analysis for probable values of the interfacial tension of erythrocyte membrane were among the values pointed out in the literature.
doi_str_mv 10.1006/jtbi.1998.0831
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subjects Cell Membrane - physiology
Erythrocyte Membrane - physiology
Linear Models
Lipid Bilayers
Models, Biological
Surface Tension
title Linear Instability Analysis and Mechanical Interfacial Tension
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