Shape changes of self-assembled actin bilayer composite membranes

被引：70

作者：

Hackl, W ^{[1
]}

Barmann, M ^{[1
]}

Sackmann, E ^{[1
]}

机构：

[1] Tech Univ Munich, Biophys Lab, Dept Phys E22, D-85748 Garching, Germany

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.80.1786

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 mu m due to undulation forces.

引用

页码：1786 / 1789

页数：4

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