Characterization of liposome membrane containing chlorophyll a molecules and its photosensitized functions

Shogo Taguchi, Keishi Suga, Keita Hayashi, Makoto Yoshimoto, Yukihiro Okamoto, Hidemi Nakamura, Hiroshi Umakoshi

研究成果: Article査読

1 被引用数 (Scopus)

抄録

Liposomes (phospholipid vesicles) including Chlorophyll a (Chla) have practically been utilized as a simplified photochemical energy conversion system. However, poor knowledge about the detailed liposomal membrane properties has hampered the progress in this field. In this paper, we therefore clarified the liposomal membrane properties based on the analyses of the membrane fluidity, the Chla absorption bands, and the Chla polarization. Moreover, we examined the influence of the membrane properties on the photoreduction with methylviologen. Consequently, it was revealed that the kinetic constant value of the reduced species formation decreased with the increase in temperature over the phase transition temperature of the membrane, which means that the membrane properties largely influence the photochemical reaction. Based on our results, we conclude that the behaviors and the orientations of Chla molecules on the liposomal membrane are significantly important in the photochemical energy conversion system.

本文言語English
ページ(範囲)4888-4893
ページ数6
ジャーナルJournal of Nanoscience and Nanotechnology
17
7
DOI
出版ステータスPublished - 2017
外部発表はい

ASJC Scopus subject areas

  • バイオエンジニアリング
  • 化学 (全般)
  • 生体医工学
  • 材料科学(全般)
  • 凝縮系物理学

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