A structurally and compositionally well-defined and spectrally tunable artificial light-harvesting system has been constructed in which multiple organic dyes attached to a three-arm-DNA nanostructure serve as an antenna conjugated to a photosynthetic reaction center isolated from Rhodobacter sphaeroides 2.4.1. The light energy absorbed by the dye molecules is transferred to the reaction center, where charge separation takes place. The average number of DNA three-arm junctions per reaction center was tuned from 0.75 to 2.35. This DNA-templated multichromophore system serves as a modular light-harvesting antenna that is capable of being optimized for its spectral properties, energy transfer efficiency, and photostability, allowing one to adjust both the size and spectrum of the resulting structures. This may serve as a useful test bed for developing nanostructured photonic systems.
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- A DNA-Directed Light-Harvesting/Reaction Center System
- Dutta, Palash (Author)
- Levenberg, Symon (Author)
- Loskutov, Andrey (Author)
- Jun, Daniel (Author)
- Saer, Rafael (Author)
- Beatty, J. Thomas (Author)
- Lin, Su (Author)
- Liu, Yan (Author)
- Woodbury, Neal (Author)
- Yan, Hao (Author)
- Department of Chemistry and Biochemistry (Contributor)
- Digital object identifier: 10.1021/ja509018g
- Identifier TypeInternational standard serial numberIdentifier Value0002-7863
- Identifier TypeInternational standard serial numberIdentifier Value1520-5126
- This document is the Accepted Manuscript version of a Published Work that appeared in final form in JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, copyright American Chemical Society, after peer review and technical editing by the publisher. To access the final published work, see http://pubs.acs.org.ezproxy1.lib.asu.edu/doi/abs/10.1021/ja509018g, opens in a new window
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Dutta, Palash K., Levenberg, Symon, Loskutov, Andrey, Jun, Daniel, Saer, Rafael, Beatty, J. Thomas, Lin, Su, Liu, Yan, Woodbury, Neal W., & Yan, Hao (2014). A DNA-Directed Light-Harvesting/Reaction Center System. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 136(47), 16618-16625. http://pubs.acs.org.ezproxy1.lib.asu.edu/doi/abs/10.1021/ja509018g