Reversible photo-switching in a cell-sized vesicle
Tsutomu Hamada, Yuko T. Sato, Takeshi Nagasaki, Kenichi Yoshikawa
Abstract
A photosensitive amphiphilic molecule can switch the shape of an assembled vesicle as determined by microscopic observation. Photo-isomerization induces a change in membrane fluctuation behavior or a morphological transition between ellipsoid and bud shapes, depending on the asymmetrical degree of the initial shape. The mechanism of this reversible photo-switching in the vesicle morphology is interpreted in terms of a change in the effective cross-sectional area of the photosensitive molecule.
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