title: Visible-Light-Induced Morphological Changes of Giant Vesicles by Photoisomerization of a Ruthenium Aqua Complex.
abstract: Visible- and red-light responsive vesicles were prepared by incorporating a ruthenium aqua complex having two alkyl chains on tridentate and asymmetrical bidentate ligands (proximal-2: [Ru(C10 tpy)(C10 pyqu)OH2 ](2+) , C10 tpy=4'-decyloxy-2,2';6',2"-terpyridine, C10 pyqu=2-[2'-(6'-decyloxy)-pyridyl]quinoline). The ruthenium complex of proximal-2 with closed alkyl chain geometry and a cylinder-like molecular shape exhibited photoisomerization to distal-2 with an open alkyl chain geometry and a cone-like shape, both in an aqueous solution and in vesicle dispersions. We observed that light irradiation of giant vesicles containing proximal-2 induced diverse morphological changes.
authors.affiliation: Department of Applied Chemistry, School of Applied Science, National Defense Academy of Japan, Hashirimizu 1-10-20, Yokosuka, Kanagawa, 239-8686, Japan. hirahara@nda.ac.jp.
authors.forename: Masanari
authors.identifier: http://orcid.org/0000-0001-7765-9995
authors.initials: M
authors.lastname: Hirahara
authors.affiliation: Department of Applied Physics, School of Applied Science, National Defense Academy of Japan, Japan.
authors.forename: Akira
authors.initials: A
authors.lastname: Tsukamoto
authors.affiliation: Department of Applied Chemistry, School of Applied Science, National Defense Academy of Japan, Hashirimizu 1-10-20, Yokosuka, Kanagawa, 239-8686, Japan.
authors.forename: Hiroki
authors.initials: H
authors.lastname: Goto
authors.affiliation: Department of Applied Physics, School of Applied Science, National Defense Academy of Japan, Japan.
authors.forename: Shigeru
authors.initials: S
authors.lastname: Tada
authors.affiliation: Department of Materials Science and Technology, Faculty of Engineering, Niigata University, 8050 Ikarashi-2, Niigata, 950-2181, Japan.
authors.forename: Masayuki
authors.initials: M
authors.lastname: Yagi
authors.affiliation: Department of Applied Chemistry, School of Applied Science, National Defense Academy of Japan, Hashirimizu 1-10-20, Yokosuka, Kanagawa, 239-8686, Japan.
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Umemura
keywords: aqua complexes; morphology; photoisomerization; ruthenium; vesicles