Spectroscopic elucidation of energy transfer in hybrid inorganic–biological organisms for solar-to-chemical production
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- Nikolay Kornienko
- Department of Chemistry, University of California, Berkeley, CA 94720;
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- Kelsey K. Sakimoto
- Department of Chemistry, University of California, Berkeley, CA 94720;
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- David M. Herlihy
- Department of Chemistry, University of California, Berkeley, CA 94720;
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- Son C. Nguyen
- Department of Chemistry, University of California, Berkeley, CA 94720;
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- A. Paul Alivisatos
- Department of Chemistry, University of California, Berkeley, CA 94720;
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- Charles. B. Harris
- Department of Chemistry, University of California, Berkeley, CA 94720;
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- Adam Schwartzberg
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720
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- Peidong Yang
- Department of Chemistry, University of California, Berkeley, CA 94720;
書誌事項
- 公開日
- 2016-10-03
- DOI
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- 10.1073/pnas.1610554113
- 公開者
- Proceedings of the National Academy of Sciences
この論文をさがす
説明
<jats:title>Significance</jats:title> <jats:p> Solar-powered chemical production from CO <jats:sub>2</jats:sub> promises to alleviate petrochemical consumption. Hybrid systems of an inorganic semiconductor light harvester and a microbial catalyst offer a viable way forward. Whereas a number of such systems have been described, the semiconductor-to-bacterium electron transfer mechanism remains largely unknown, limiting rational approaches to improving their performance. In this work, we look at how a semiconductor nanoparticle-sensitized bacterium transforms CO <jats:sub>2</jats:sub> and sunlight into acetic acid, a known precursor for fuels, food, pharmaceuticals, and polymers. Using time-resolved spectroscopy and biochemical analysis, we conclude that multiple pathways facilitate electron and light energy transfer from semiconductor to bacterium. This foundational study enables future investigation, understanding, and improvement of complex biotic–abiotic hybrid systems. </jats:p>
収録刊行物
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- Proceedings of the National Academy of Sciences
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Proceedings of the National Academy of Sciences 113 (42), 11750-11755, 2016-10-03
Proceedings of the National Academy of Sciences