Journal of Photoscience
- Volume 9 Issue 2
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- Pages.347-349
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- 2002
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- 1225-8555(pISSN)
Self-assembly of Amphiphilic Zinc Chlorins in an Aqueous Medium as a Model for Chlorosome of Green Photosynthetic Bacteria
- Miyatake, Tomohiro (Department of Materials Chemistry, Ryukoku University) ;
- Kato, Syuusaku (Department of Materials Chemistry, Ryukoku University) ;
- Tamiaki, Hitoshi (Department of Bioscience and Biotechnology, Ritsumeikan University) ;
- Fujiwara, Manabu (Department of Materials Chemistry, Ryukoku University) ;
- Matsushita, Takayuki (Department of Materials Chemistry, Ryukoku University)
- Published : 2002.08.01
Abstract
Synthetic zinc chlorins possessing a hydrophylic polyoxyethylene chain at the 17 -position were prepared. An amphiphilic zinc chlorin possessing a single chIorin moiety showed absorption maxima at 675 nm in an aqueous medium, indicating that the zinc chIorin did not form large aggregates but a dimeric structure. In contrast, amphiphilic zinc chlorin dyads in which two zinc chlorin moieties were connected with a hydrophilic polyoxyethylene linkage showed red-shifted absorption band around 720-740 nm in an aqueous medium. The result indicated that the amphiphilic zinc chlorin dyad self-aggregated to form chlorosome-like oligomer.