1997/12/12 by W. Hackl, Wolfgang Hackl, M. Barmann +2 · 84 citations
Biochemistry, Genetics and Molecular Biology · Chemistry · Physics and Astronomy · #Actin #Bilayer #Biochemistry #Biology #Biophysics #Cellular Mechanics and Interactions #Chemistry #Composite material #Coupling (piping) #Force Microscopy Techniques and Applications #Lipid Membrane Structure and Behavior #Lipid bilayer #Materials science #Membrane #Tension (geology) #Vesicle #physics.bio-ph #q-bio
paper · pdf · doi:10.1103/physrevlett.80.1786
published in Physical Review Letters 80(8), 1786-1789 (American Physical Society) · pdf-file, has been accepted by PRL
arxiv created 1997/12/12 · openalex publication_date 1998/02/23 · arxiv updated 2015/06/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We report the self-assembly of thin actin shells beneath the membranes of giant vesicles. Ion-carrier mediated influx of Mg2+ induces actin polymerization in the initially spherical vesicles. Buckling of the vesicles and the formation of blisters after thermally induced bilayer expansion are demonstrated. Bilayer flickering is dominated by tension generated by its coupling to the actin cortex. Quantitative flicker analysis suggests that the bilayer and the actin cortex are separated by 0.4 to 0.5\ensuremathμm due to undulation forces.