Effects of a pulling force on the shape of a bound vesicle

A. S. Smith; E. Sackmann; U. Seifert

doi:10.1209/epl/i2003-00499-9

Effects of a pulling force on the shape of a bound vesicle

A. S. Smith, E. Sackmann, U. Seifert

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Abstract

We develop a theoretical model to describe the vertical pulling of vesicles adhered in a contact potential. For a range of applied forces, locally stable bound shapes, separated from the free shape by an energy barrier, can be found. The phase diagram contains regions with either a unique bound shape or an additional meta-stable shape. Upon pulling, these shapes unbind discontinuously since the vesicles disengage from the substrate while still possessing a finite adhesion area.

Original language	English
Pages (from-to)	281-287
Number of pages	7
Journal	Europhysics Letters
Volume	64
Issue number	2
DOIs	https://doi.org/10.1209/epl/i2003-00499-9
State	Published - Oct 2003

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title = "Effects of a pulling force on the shape of a bound vesicle",

abstract = "We develop a theoretical model to describe the vertical pulling of vesicles adhered in a contact potential. For a range of applied forces, locally stable bound shapes, separated from the free shape by an energy barrier, can be found. The phase diagram contains regions with either a unique bound shape or an additional meta-stable shape. Upon pulling, these shapes unbind discontinuously since the vesicles disengage from the substrate while still possessing a finite adhesion area.",

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AB - We develop a theoretical model to describe the vertical pulling of vesicles adhered in a contact potential. For a range of applied forces, locally stable bound shapes, separated from the free shape by an energy barrier, can be found. The phase diagram contains regions with either a unique bound shape or an additional meta-stable shape. Upon pulling, these shapes unbind discontinuously since the vesicles disengage from the substrate while still possessing a finite adhesion area.

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Effects of a pulling force on the shape of a bound vesicle

Abstract

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