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Wrapping of a spherical colloid by a fluid membrane

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons47777

Deserno,  M.
MPI for Polymer Research, Max Planck Society;

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Zitation

Deserno, M., & Bickel, T. (2003). Wrapping of a spherical colloid by a fluid membrane. Europhysics Letters, 62(5), 767-773.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000F-62FB-4
Zusammenfassung
We theoretically study the elastic deformation of a fluid membrane induced by an adhering spherical colloidal particle within the framework of a Helfrich energy. Based on a full optimization of the membrane shape we find a continuous binding and a discontinuous envelopment transition, the latter displaying a potentially substantial energy barrier. A small-gradient approximation permits membrane shape and complex energy to be calculated analytically. While this only leads to a good representation of the complex geometry for very small degrees of wrapping, it still gives the correct phase boundaries in the regime of low tension.