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http://dx.doi.org/10.18419/opus-7799
Autor(en): | Berndl, Karin Käs, Josef Lipowsky, Reinhard Sackmann, Erich Seifert, Udo |
Titel: | Shape transformations of giant vesicles : extreme sensitivity to bilayer asymmetry |
Erscheinungsdatum: | 1990 |
Dokumentart: | Zeitschriftenartikel |
Erschienen in: | Europhysics letters 13 (1990), S. 659-664 |
URI: | http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-69431 http://elib.uni-stuttgart.de/handle/11682/7816 http://dx.doi.org/10.18419/opus-7799 |
Zusammenfassung: | Shape transformations of vesicles of lecithin (DMPC) in water are induced by changing the temperature which effectively changes the volume-to-area ratio. Three different routes are found which include i) symmetric-asymmetric re-entrant transitions from a dumbbell to pear-shaped state, ii) the expulsion of a smaller vesicle (budding), and iii) discocytestomatocyte transitions. All of these shape transformations are explained within a model for the bending energy of the bilayer which assumes i) that the two monolayers do not exchange lipid molecules, and ii) that the two adjacent monolayers exhibit a small difference in their thermal expansivities which is easily produced, e.g., by residual impurities. |
Enthalten in den Sammlungen: | 15 Fakultätsübergreifend / Sonstige Einrichtung |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
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sei4.pdf | 1,25 MB | Adobe PDF | Öffnen/Anzeigen |
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