A DNA-directed light-harvesting/reaction center system

Palash K. Dutta; Symon Levenberg; Andrey Loskutov; Daniel Jun; Rafael Saer; J. Thomas Beatty; Su Lin; Yan Liu; Neal Woodbury; Hao Yan

doi:10.1021/ja509018g

A DNA-directed light-harvesting/reaction center system

Palash K. Dutta, Symon Levenberg, Andrey Loskutov, Daniel Jun, Rafael Saer, J. Thomas Beatty, Su Lin, Yan Liu, Neal Woodbury, Hao Yan

Research output: Contribution to journal › Article › peer-review

89 Scopus citations

Abstract

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.

Original language	English (US)
Pages (from-to)	16618-16625
Number of pages	8
Journal	Journal of the American Chemical Society
Volume	136
Issue number	47
DOIs	https://doi.org/10.1021/ja509018g
State	Published - Nov 26 2014

ASJC Scopus subject areas

Catalysis
General Chemistry
Biochemistry
Colloid and Surface Chemistry

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10.1021/ja509018g

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title = "A DNA-directed light-harvesting/reaction center system",

abstract = "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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AU - Dutta, Palash K.

AU - Levenberg, Symon

AU - Loskutov, Andrey

AU - Jun, Daniel

AU - Saer, Rafael

AU - Beatty, J. Thomas

AU - Lin, Su

AU - Liu, Yan

AU - Woodbury, Neal

AU - Yan, Hao

PY - 2014/11/26

Y1 - 2014/11/26

N2 - 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.

AB - 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

Abstract

ASJC Scopus subject areas

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