Sökning: "Vesicles"

Visar resultat 1 - 5 av 302 avhandlingar innehållade ordet Vesicles.

  1. 1. Vesicles vs. surfaces

    Detta är en avhandling från Chalmers University of Technology

    Författare :Erik Reimhult; Chalmers tekniska högskola.; Chalmers University of Technology.; [2002]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : .... LÄS MER

  2. 2. Formation of Block Copolymer and Surfactant Vesicles

    Detta är en avhandling från Karin Bryskhe, Villav. 8, 232 53 Åkarp

    Författare :Karin Bryskhe; Lunds universitet.; Lund University.; [2004]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Polymerteknik; Fysikalisk kemi; biopolymers; Polymer technology; nanoparticles; Lipid; triblock copolymer; surfactants; Nonionic; Vesicles; Formation; Physical chemistry;

    Sammanfattning : Popular Abstract in Swedish En amfifil molekyl innebär en molekyl som består av två delar, en som är hydrofil (“vattenälskande”) och en som är hydrofob (“vattenhatande”). Ofta består den amfifila molekylen av en ”vattenälskande” huvudgrupp och en ”vattenhatande” svans och kallas för surfaktant. LÄS MER

  3. 3. Tethered Lipid Vesicles as Nanoscale Sensor Elements

    Detta är en avhandling från Chalmers University of Technology

    Författare :Seyed Tabaei; Chalmers tekniska högskola.; Chalmers University of Technology.; [2012]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; antiviral peptide; aquaporin; aquaglyceroporin; biosensing; cell membrane; lipid bilayer; lipid vesicles; microfluidics; phospholipase A2; pore formation; surface plasmon resonance SPR ; total internal reflection fluorescence TIRF microscopy;

    Sammanfattning : The primary aim of this thesis work has been to explore and advance the potential of surface tethered lipid vesicles as a platform for studying in particular the following three biomembrane-related processes: trans-membrane transport, membrane-peptide interactions and the activity of membrane active enzymes. First, a method based on surface plasmon resonance (SPR) spectroscopy was developed for studying passive diffusion processes as well as the membrane-protein mediated transport of small non electrolyte molecules across lipid bilayers. LÄS MER

  4. 4. Roles of membrane vesicles in bacterial pathogenesis

    Detta är en avhandling från Umeå : Umeå University

    Författare :Svitlana Vdovikova; Umeå universitet.; Umeå universitet.; Umeå universitet.; [2017]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Membrane vesicles; autophagy; pore-forming toxin; pore formation; Listeria monocytogenes; Vibrio cholerae; virulence factor; PrtV protease; listeriolysin O; V. cholerae cytolysin; mikrobiologi; Microbiology; molekylärbiologi; Molecular Biology;

    Sammanfattning : The production of membranous vesicles is observed to occur among organisms from all domains of the tree of life spanning prokaryotes (bacteria, archaea) and eukaryotes (plants, animals and fungi). Bacterial release of membrane-derived vesicles (MVs) has been studied most extensively in cases of Gram-negative species and implicating their outer membrane in formation of extracellular MVs. LÄS MER

  5. 5. DNA-Controlled Lipid-Membrane Fusion

    Detta är en avhandling från Chalmers University of Technology

    Författare :Lisa Simonsson; Chalmers tekniska högskola.; Chalmers University of Technology.; [2009]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biofysik; Biophysics; biomembranes; membrane fusion; vesicles; lipid bilayer; self-assembly; DNA; site-specificity; diffusion; model system; exocytosis; total internal reflection fluorescence microscopy; TIRF microscopy; fluorescence resonance energy transfer; FRET;

    Sammanfattning : Membrane fusion is essential for nerve-cell communication, for protein transport between cell organelles and the cell-membrane and for enabling the merger between virus and host membranes during virus infection. We have demonstrated that short DNA oligonucleotides, membrane-attached via CH in an orientation that mimics the overall zipperlike architecture of fusion-inducing proteins, induce fusion of both suspended vesicles and vesicles site-specifically tethered to SLBs. LÄS MER