Photobiocatalytic chemistry of oxidoreductases using water as the electron donor
2014; Nature Portfolio; Volume: 5; Issue: 1 Linguagem: Inglês
10.1038/ncomms4145
ISSN2041-1723
AutoresMaría Mifsud, Serena Gargiulo, Sara Iborra, Isabel W. C. E. Arends, Frank Hollmann, Avelino Corma,
Tópico(s)Microbial Fuel Cells and Bioremediation
ResumoTo date, water has been poorly studied as the sacrificial electron donor for biocatalytic redox reactions using isolated enzymes. Here we demonstrate that water can also be turned into a sacrificial electron donor to promote biocatalytic redox reactions. The thermodynamic driving force required for water oxidation is obtained from UV and visible light by means of simple titanium dioxide-based photocatalysts. The electrons liberated in this process are delivered to an oxidoreductase by simple flavin redox mediators. Overall, the feasibility of photobiocatalytic, water-driven bioredox reactions is demonstrated.
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