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Cells and their organelles show a variety of membrane morphologies with multiple\nsubmicrometer features, for example, tubules, vesicles, folds and pores. The shape of the\ncellular membranes can dynamically change to support a variety of functions, such as cargo\ntransport, transmission of signals between the cells, cell movement and division. A\nconvenient route to understanding the complexity of cellular membranes is to study\nartificially created lipid bilayer membrane systems. The work presented in this thesis is\nfocused on highly curved membrane structures in the form of lipid bilayer nanotubes.\nFirstly, the shape transformation mechanism for free floating lipid nanotubes was\ninvestigated. Driven by their high curvature energy, nanotubes contract in length and\neventually transform into tubular stomatocyte-like structures. Secondly, diffusion, electric\nfield and Marangoni-flow-driven modes of transport through lipid nanotubes are described.\nThen, an important improvement in
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Cells and their organelles show a variety of membrane morphologies with multiple\nsubmicrometer features, for example, tubules, vesicles, folds and pores. The shape of the\ncellular membranes can dynamically change to support a variety of functions, such as cargo\ntransport, transmission of signals between the cells, cell movement and division. A\nconvenient route to understanding the complexity of cellular membranes is to study\nartificially created lipid bilayer membrane systems. The work presented in this thesis is\nfocused on highly curved membrane structures in the form of lipid bilayer nanotubes.\nFirstly, the shape transformation mechanism for free floating lipid nanotubes was\ninvestigated. Driven by their high curvature energy, nanotubes contract in length and\neventually transform into tubular stomatocyte-like structures. Secondly, diffusion, electric\nfield and Marangoni-flow-driven modes of transport through lipid nanotubes are described.\nThen, an important improvement in
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