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Title: Strategies to enhance the excitation energy-transfer efficiency in a light-harvesting system using the intra-molecular charge transfer character of carotenoids

Abstract

Fucoxanthin is a carotenoid that is mainly found in light-harvesting complexes from brown algae and diatoms. Due to the presence of a carbonyl group attached to polyene chains in polar environments, excitation produces an excited intra-molecular charge transfer. This intra-molecular charge transfer state plays a key role in the highly efficient (~95%) energy-transfer from fucoxanthin to chlorophyllain the light-harvesting complexes from brown algae. In purple bacterial light-harvesting systems the efficiency of excitation energy-transfer from carotenoids to bacteriochlorophylls depends on the extent of conjugation of the carotenoids. In this study we were successful, for the first time, in incorporating fucoxanthin into a light-harvesting complex 1 from the purple photosynthetic bacterium,Rhodospirillum rubrumG9+ (a carotenoidless strain). Femtosecond pump-probe spectroscopy was applied to this reconstituted light-harvesting complex in order to determine the efficiency of excitation energy-transfer from fucoxanthin to bacteriochlorophyllawhen they are bound to the light-harvesting 1 apo-proteins.

Authors:
 [1];  [1];  [1];  [2];  [3];  [4];  [4];  [5];  [5];  [1]
  1. Department of Applied Chemistry for Environment; School of Science and Technology; Kwansei Gakuin University; Sanda; Japan
  2. Institute of Pulsed Power Science; Kumamoto University; Kumamoto; Japan
  3. South Product Co. Ltd.; Uruma-shi; Japan
  4. Department of Chemistry; Graduate School of Science; Osaka City University; Osaka 558-8585; Japan
  5. Glasgow Biomedical Research Centre; University of Glasgow; 126 University Place; Glasgow, G12 8QQ; UK
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Photosynthetic Antenna Research Center (PARC)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1388766
DOE Contract Number:  
SC0001035
Resource Type:
Journal Article
Journal Name:
Faraday Discussions
Additional Journal Information:
Journal Volume: 198; Related Information: PARC partners with Washington University in St. Louis (lead); University of California, Riverside; University of Glasgow, UK; Los Alamos National Laboratory; University of New Mexico; New Mexico Corsortium; North Carolina State University; Northwestern University; Oak Ridge National Laboratory; University of Pennsylvania; Sandia National Laboratories; University of Sheffield, UK; Journal ID: ISSN 1359-6640
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
solar (fuels), photosynthesis (natural and artificial), biofuels (including algae and biomass), bio-inspired, charge transport, membrane, synthesis (novel materials), synthesis (self-assembly)

Citation Formats

Yukihira, Nao, Sugai, Yuko, Fujiwara, Masazumi, Kosumi, Daisuke, Iha, Masahiko, Sakaguchi, Kazuhiko, Katsumura, Shigeo, Gardiner, Alastair T., Cogdell, Richard J., and Hashimoto, Hideki. Strategies to enhance the excitation energy-transfer efficiency in a light-harvesting system using the intra-molecular charge transfer character of carotenoids. United States: N. p., 2017. Web. doi:10.1039/C6FD00211K.
Yukihira, Nao, Sugai, Yuko, Fujiwara, Masazumi, Kosumi, Daisuke, Iha, Masahiko, Sakaguchi, Kazuhiko, Katsumura, Shigeo, Gardiner, Alastair T., Cogdell, Richard J., & Hashimoto, Hideki. Strategies to enhance the excitation energy-transfer efficiency in a light-harvesting system using the intra-molecular charge transfer character of carotenoids. United States. https://doi.org/10.1039/C6FD00211K
Yukihira, Nao, Sugai, Yuko, Fujiwara, Masazumi, Kosumi, Daisuke, Iha, Masahiko, Sakaguchi, Kazuhiko, Katsumura, Shigeo, Gardiner, Alastair T., Cogdell, Richard J., and Hashimoto, Hideki. 2017. "Strategies to enhance the excitation energy-transfer efficiency in a light-harvesting system using the intra-molecular charge transfer character of carotenoids". United States. https://doi.org/10.1039/C6FD00211K.
@article{osti_1388766,
title = {Strategies to enhance the excitation energy-transfer efficiency in a light-harvesting system using the intra-molecular charge transfer character of carotenoids},
author = {Yukihira, Nao and Sugai, Yuko and Fujiwara, Masazumi and Kosumi, Daisuke and Iha, Masahiko and Sakaguchi, Kazuhiko and Katsumura, Shigeo and Gardiner, Alastair T. and Cogdell, Richard J. and Hashimoto, Hideki},
abstractNote = {Fucoxanthin is a carotenoid that is mainly found in light-harvesting complexes from brown algae and diatoms. Due to the presence of a carbonyl group attached to polyene chains in polar environments, excitation produces an excited intra-molecular charge transfer. This intra-molecular charge transfer state plays a key role in the highly efficient (~95%) energy-transfer from fucoxanthin to chlorophyllain the light-harvesting complexes from brown algae. In purple bacterial light-harvesting systems the efficiency of excitation energy-transfer from carotenoids to bacteriochlorophylls depends on the extent of conjugation of the carotenoids. In this study we were successful, for the first time, in incorporating fucoxanthin into a light-harvesting complex 1 from the purple photosynthetic bacterium,Rhodospirillum rubrumG9+ (a carotenoidless strain). Femtosecond pump-probe spectroscopy was applied to this reconstituted light-harvesting complex in order to determine the efficiency of excitation energy-transfer from fucoxanthin to bacteriochlorophyllawhen they are bound to the light-harvesting 1 apo-proteins.},
doi = {10.1039/C6FD00211K},
url = {https://www.osti.gov/biblio/1388766}, journal = {Faraday Discussions},
issn = {1359-6640},
number = ,
volume = 198,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2017},
month = {Sun Jan 01 00:00:00 EST 2017}
}

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