Sökning: "membrane nanotube"

Visar resultat 1 - 5 av 11 avhandlingar innehållade orden membrane nanotube.

  1. 1. Interaction of Calcium Ions with Lipid Membranes

    Detta är en avhandling från ; Chalmers tekniska högskola; Gothenburg

    Författare :Baharan Ali Doosti; [2019]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; phospholipid bilayer membrane; membrane dynamics; micromanipulation; calcium ions; cell migration.; membrane nanotube; membrane tubular protrusions; calcium ion concentration gradient; membrane bending; giant unilamellar vesicle;

    Sammanfattning : Bilayer membranes enclose and shield the biological cell and its inner compartments, as well as the tubular networks that exist within and between the cells. Due to their fluidic nature, the membranes are incredibly dynamic and flexible, which allows them to bend, reshape and fuse in response to mechanical and chemical stimuli within their natural microenvironments. LÄS MER

  2. 2. Lipid Nanotube Networks: Shape Transitions and Insights into the Dynamics of Self-Organization

    Detta är en avhandling från ; Chalmers tekniska högskola; Gothenburg

    Författare :Tatsiana Lobovkina; [2007]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; circular nanotube; shape transition; enzymatic reaction; nanotube knot; self-organization; liposome; lipid nanotube; lipid vesicle; nanotube-vesicle network;

    Sammanfattning : Nanotube-vesicle networks (NVNs) are simplified models of cell membrane tubular systems which are dynamic transportation routs for molecular cargoes in biological cells. The presented work describes dynamic properties of NVNs such as self-organization, shape and topology transformations; moreover, specific geometric properties of the networks are used for controlling enzymatic reactions. LÄS MER

  3. 3. Transport Modes in Nanotube-Vesicle Networks

    Detta är en avhandling från ; Chalmers tekniska högskola; Gothenburg

    Författare :Michal Tokarz; [2006]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; diffusion; confinement; liposome; biomimetic; micromanipulation; Vesicle; electrophoresis; network; nanotube; transport;

    Sammanfattning : Methods for construction of surface-immobilized microscopic networks of phospholipid bilayer vesicles (3-50 µm in diameter) interconnected by lipid tubes (30-150 nm in radius), have previously been developed. The networks have controlled connectivity and are well-defined with regard to container size, content, angle between nanotube extensions, and nanotube length. LÄS MER

  4. 4. Nanotube Vesicle Networks: Immobilization and Transport Studies

    Detta är en avhandling från ; Chalmers tekniska högskola; Gothenburg

    Författare :Johan Hurtig; [2007]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; network; electrophoresis; nanotechnology; liposome; biomimetic; confocal microscopy; Vesicle; microfabrication; nanotube;

    Sammanfattning : Surfactant lipids are an essential element of living cells. They are the basis for the biomembranes that envelope and divide cells into compartments. In addition to this static function, lipid membranes also play a role in dynamic processes such as transport and signaling. LÄS MER

  5. 5. Membrane-Polymer Interactions in Lipid Vesicles

    Detta är en avhandling från ; Chalmers tekniska högskola; Gothenburg

    Författare :Ilona Wegrzyn; [2013]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; lipid nanotube; liposome; multifunctional pipette; PNIPAAm; lipid bilayer; giant unilamellar vesicle;

    Sammanfattning : Membrane related biological processes are commonly investigated in artificial biomimetic experimental systems. One of the most versatile models is based upon giant unilamellar phospholipid vesicles (liposomes), which are artificially generated spherical lipid structures in an aqueous environment. LÄS MER