The stretching elasticity of biomembranes determines their line tension and bending rigidity.
Biomech Model Mechanobiol
; 12(6): 1233-42, 2013 Nov.
Article
em En
| MEDLINE
| ID: mdl-23460499
ABSTRACT
In this work, some implications of a recent model for the mechanical behavior of biological membranes (Deseri et al. in Continuum Mech Thermodyn 20(5)255-273, 2008) are exploited by means of a prototypical one-dimensional problem. We show that the knowledge of the membrane stretching elasticity permits to establish a precise connection among surface tension, bending rigidities and line tension during phase transition phenomena. For a specific choice of the stretching energy density, we evaluate these quantities in a membrane with coexistent fluid phases, showing a satisfactory comparison with the available experimental measurements. Finally, we determine the thickness profile inside the boundary layer where the order-disorder transition is observed.
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Base de dados:
MEDLINE
Assunto principal:
Elasticidade
/
Membranas
Idioma:
En
Ano de publicação:
2013
Tipo de documento:
Article