A bioinorganic hybrid system based on bacterial surface display and biomimetic silicification for hydrogen production. Solar-to-chemical production by artificial and bioinspired photosynthetic systems is of tremendous interest to help solve current global energy and environmental problems. We developed a bioinorganic hybrid system for photocatalytic hydrogen production under aerobic conditions by combining light-harvesting semiconductors, hydrogenase catalysis, and self-aggregation of whole bacterial cells. We induced hydrogen production via self-photosynthesis in engineered Escherichia coli cells, which were originally designed for bioremediation, with in situ biosynthesis of biocompatible cadmium sulfide nanoparticles using a surface-display system. We also introduced a biomimetic silica encapsulation strategy into the engineered E. coli cells, enabling this hybrid system to continuously produce hydrogen for 96 hours, even under natural aerobic conditions. This biohybrid catalytic approach may serve as a general strategy for solar-to-chemical production.
A surface-display biohybrid approach to light-driven hydrogen production in air
Wei Wei,Peiqing Sun,Zhen Li,Kuisong Song,Wenyin Su,Bao Wang,Yangzhong Liu,Jing Zhao
Published 2018 in Science Advances
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- Publication year
2018
- Venue
Science Advances
- Publication date
2018-02-01
- Fields of study
Medicine, Chemistry, Engineering, Environmental Science
- Identifiers
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- Source metadata
Semantic Scholar, PubMed
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