| Issue |
Europhys. Lett.
Volume 64, Number 2, October 2003
|
|
|---|---|---|
| Page(s) | 281 - 287 | |
| Section | Interdisciplinary physics and related areas of science and technology | |
| DOI | https://doi.org/10.1209/epl/i2003-00499-9 | |
| Published online | 01 November 2003 | |
Effects of a pulling force on the shape of a bound vesicle
1
Technische Universität München,
E22 Institut für Biophysik D-85748 Garching, Germany
2
Universität Stuttgart, II. Institut für
Theoretische Physik D-70550 Stuttgart, Germany
Received:
20
May
2003
Accepted:
4
August
2003
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.
PACS: 87.16.Dg – Membranes, bilayers, and vesicles
© EDP Sciences, 2003
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