title: Reversible photoswitching in a cell-sized vesicle.
abstract: A photosensitive amphiphilic molecule can switch the shape of an assembled vesicle as determined by microscopic observation. Photoisomerization 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 photoswitching in the vesicle morphology is interpreted in terms of a change in the effective cross-sectional area of the photosensitive molecule.
authors.affiliation: Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan.
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Hamada
authors.forename: Yuko T
authors.initials: YT
authors.lastname: Sato
authors.forename: Kenichi
authors.initials: K
authors.lastname: Yoshikawa
authors.forename: Takeshi
authors.initials: T
authors.lastname: Nagasaki
mesh_terms: D001391:Azo Compounds / Q000737:chemistry / Q000528:radiation effects*; D015394:Molecular Structure; D010713:Phosphatidylcholines / Q000737:chemistry / Q000528:radiation effects*; D010777:Photochemistry; D013237:Stereoisomerism; D014466:Ultraviolet Rays
chemical_list: D001391:Azo Compounds; D010713:Phosphatidylcholines; C017251:1,2-oleoylphosphatidylcholine; C009850:azobenzene