Self-photosensitization of nonphotosynthetic bacteria for solar-to-chemical production
Top Cited Papers
- 1 January 2016
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 351 (6268), 74-77
- https://doi.org/10.1126/science.aad3317
Abstract
Improving natural photosynthesis can enable the sustainable production of chemicals. However, neither purely artificial nor purely biological approaches seem poised to realize the potential of solar-to-chemical synthesis. We developed a hybrid approach, whereby we combined the highly efficient light harvesting of inorganic semiconductors with the high specificity, low cost, and self-replication and -repair of biocatalysts. We induced the self-photosensitization of a nonphotosynthetic bacterium, Moorella thermoacetica, with cadmium sulfide nanoparticles, enabling the photosynthesis of acetic acid from carbon dioxide. Biologically precipitated cadmium sulfide nanoparticles served as the light harvester to sustain cellular metabolism. This self-augmented biological system selectively produced acetic acid continuously over several days of light-dark cycles at relatively high quantum yields, demonstrating a self-replicating route toward solar-to-chemical carbon dioxide reduction.Keywords
Funding Information
- U.S. Department of Energy (DE-AC02-05CH11231)
- NSF (DMR-1507914)
This publication has 34 references indexed in Scilit:
- Biological conversion of carbon dioxide and hydrogen into liquid fuels and industrial chemicalsCurrent Opinion in Biotechnology, 2013
- Development of genetic transformation and heterologous expression system in carboxydotrophic thermophilic acetogen Moorella thermoaceticaJournal of Bioscience and Bioengineering, 2013
- Next generation biofuel engineering in prokaryotesCurrent Opinion in Chemical Biology, 2013
- Bioelectrochemical Production of Caproate and Caprylate from Acetate by Mixed CulturesACS Sustainable Chemistry & Engineering, 2013
- Stoichiometric and energetic analyses of non-photosynthetic CO2-fixation pathways to support synthetic biology strategies for production of fuels and chemicalsCurrent Opinion in Chemical Engineering, 2012
- Conversion of Wastes into Bioelectricity and Chemicals by Using Microbial Electrochemical TechnologiesScience, 2012
- Electrosynthesis of Organic Compounds from Carbon Dioxide Is Catalyzed by a Diversity of Acetogenic MicroorganismsApplied and Environmental Microbiology, 2011
- Engineering of a synthetic electron conduit in living cellsProceedings of the National Academy of Sciences of the United States of America, 2010
- Bio-directed synthesis and assembly of nanomaterialsChemical Society Reviews, 2008
- BACTERIAL PHOTOPROTECTION THROUGH EXTRACELLULAR CADMIUM SULFIDE CRYSTALLITESPhotochemistry and Photobiology, 1995