Thermodynamics of vesicle growth and instability

Duccio Fanelli; Alan J. McKane

doi:10.1103/PhysRevE.78.051406

Thermodynamics of vesicle growth and instability

Duccio Fanelli, Alan J. McKane

Research output: Contribution to journal › Article › peer-review

Abstract

We describe the growth of vesicles, due to the accretion of lipid molecules to their surface, in terms of linear irreversible thermodynamics. Our treatment differs from those previously put forward by consistently including the energy of the membrane in the thermodynamic description. We calculate the critical radius at which the spherical vesicle becomes unstable to a change of shape in terms of the parameters of the model. The analysis is carried out for the case both when the increase in volume is due to the absorption of water and when a solute is also absorbed through the walls of the vesicle. © 2008 The American Physical Society.

Original language	English
Article number	051406
Journal	Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume	78
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevE.78.051406
Publication status	Published - 26 Nov 2008

Keywords

MEMBRANE BENDING ENERGY
SELF-REPRODUCTION
SHAPE TRANSFORMATIONS
THERMAL FLUCTUATIONS
FLUID MEMBRANES
PERMEABILITY
PROTOCELL
SOLUTE

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Cite this

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title = "Thermodynamics of vesicle growth and instability",

abstract = "We describe the growth of vesicles, due to the accretion of lipid molecules to their surface, in terms of linear irreversible thermodynamics. Our treatment differs from those previously put forward by consistently including the energy of the membrane in the thermodynamic description. We calculate the critical radius at which the spherical vesicle becomes unstable to a change of shape in terms of the parameters of the model. The analysis is carried out for the case both when the increase in volume is due to the absorption of water and when a solute is also absorbed through the walls of the vesicle. {\textcopyright} 2008 The American Physical Society.",

keywords = "MEMBRANE BENDING ENERGY, SELF-REPRODUCTION, SHAPE TRANSFORMATIONS, THERMAL FLUCTUATIONS, FLUID MEMBRANES, PERMEABILITY, PROTOCELL, SOLUTE",

author = "Duccio Fanelli and McKane, {Alan J.}",

note = "Fanelli, Duccio McKane, Alan J. EPSRC (UK) [GR/T11784/01] We wish to thank Timoteo Carletti, Pier Luigi Luisi, Javier Macia, Peter Olmsted, Roberto Serra, Pasquale Stano, Sasa Svetina, and Matthew Turner for interesting discussions and correspondence. A.J.M. wishes the thank the EPSRC (UK) for financial support under Grant No. GR/T11784/01. 26 AMER PHYSICAL SOC COLLEGE PK Part 1 376WL",

year = "2008",

month = nov,

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doi = "10.1103/PhysRevE.78.051406",

language = "English",

volume = "78",

journal = "Physical Review E - Statistical, Nonlinear, and Soft Matter Physics",

issn = "1539-3755",

publisher = "American Physical Society",

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T1 - Thermodynamics of vesicle growth and instability

AU - Fanelli, Duccio

AU - McKane, Alan J.

N1 - Fanelli, Duccio McKane, Alan J. EPSRC (UK) [GR/T11784/01] We wish to thank Timoteo Carletti, Pier Luigi Luisi, Javier Macia, Peter Olmsted, Roberto Serra, Pasquale Stano, Sasa Svetina, and Matthew Turner for interesting discussions and correspondence. A.J.M. wishes the thank the EPSRC (UK) for financial support under Grant No. GR/T11784/01. 26 AMER PHYSICAL SOC COLLEGE PK Part 1 376WL

PY - 2008/11/26

Y1 - 2008/11/26

N2 - We describe the growth of vesicles, due to the accretion of lipid molecules to their surface, in terms of linear irreversible thermodynamics. Our treatment differs from those previously put forward by consistently including the energy of the membrane in the thermodynamic description. We calculate the critical radius at which the spherical vesicle becomes unstable to a change of shape in terms of the parameters of the model. The analysis is carried out for the case both when the increase in volume is due to the absorption of water and when a solute is also absorbed through the walls of the vesicle. © 2008 The American Physical Society.

AB - We describe the growth of vesicles, due to the accretion of lipid molecules to their surface, in terms of linear irreversible thermodynamics. Our treatment differs from those previously put forward by consistently including the energy of the membrane in the thermodynamic description. We calculate the critical radius at which the spherical vesicle becomes unstable to a change of shape in terms of the parameters of the model. The analysis is carried out for the case both when the increase in volume is due to the absorption of water and when a solute is also absorbed through the walls of the vesicle. © 2008 The American Physical Society.

KW - MEMBRANE BENDING ENERGY

KW - SELF-REPRODUCTION

KW - SHAPE TRANSFORMATIONS

KW - THERMAL FLUCTUATIONS

KW - FLUID MEMBRANES

KW - PERMEABILITY

KW - PROTOCELL

KW - SOLUTE

U2 - 10.1103/PhysRevE.78.051406

DO - 10.1103/PhysRevE.78.051406

M3 - Article

SN - 1539-3755

VL - 78

JO - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics

JF - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics

IS - 5

M1 - 051406

ER -

Thermodynamics of vesicle growth and instability

Abstract

Keywords

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