Morphological transitions of vesicles exposed to nonuniform spatio-temporal conditions
Dissertation, Universität Potsdam, 2020
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| Sprache: | eng |
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Potsdam
2020
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Tag hinzufügen | Zusammenfassung: | Dissertation, Universität Potsdam, 2020 Giant unilamellar vesicles are an important tool in todays experimental efforts to understand the structure and behaviour of biological cells. Their simple structure allows the isolation of the physical elastic properties of the lipid membrane. A central physical property is the bending energy of the membrane, since the many different shapes of giant vesicles can be obtained by finding the minimum of the bending energy. In the spontaneous curvature model the bending energy is a function of the bending rigidity as well as the mean curvature and an additional parameter called the spontaneous curvature, which describes an internal preference of the lipid-bilayer to bend towards one side or the other. The spontaneous and mean curvature are local properties of the membrane. Additional constraints arise from the conservation of the membrane surface area and the enclosed volume, which are global properties. In this thesis the spontaneous curvature model is used to explain the experimental observation of a periodic shape oscillation of a ... |
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| Beschreibung: | viii, 105 Seiten Illustrationen, Diagramme |