Ruthenium– and cobalt–based artificial metalloenzymes for photocatalytic water oxidation in artificial photosynthesis

Polanco Rivas, E.A. (2023)

Doctoral Thesis

Producing green energy has become the main goal in our society in the search of reducing or eliminating the carbon emission from fossil fuels. In this project, proteins were used as a tool to develop an artificial system capable of promoting the most demanding reaction in photosynthesis, water oxidation, as a new concept of producing energy from a green source. For this purpose, a screening study of the interaction between selected proteins and a library photocatalytic ruthenium and cobalt complexes was carried out. The results from such study allowed the production of two types of artificial metalloenzymes (ArM) which were proven to be able to perform water oxidation reaction via blue light irradiation. As well, an unusual interaction between proteins which promote the photocatalytic O2 evolution from water. These findings lead to develop ruthenium and cobalt metalloenzymes as promising candidates for artificial photosynthesis in bio-inspired systems

• Artificial metalloenzymes
• Photocatalysis
• Ruthenium
• Cobalt
• Protein-protein interaction
• Water oxidation
• Artificial photosynthesis

• All authors: Polanco Rivas, E.A.
• Supervisor: Bonnet, S.A.; Pandit, A.
• Committee: Ubbink, M.; Jeuken, L.J.C.; Roelfes, J.G.; Bonchio, M.; Mekmouche, Y.
• Qualification: Doctor (dr.)
• Awarding Institution: Leiden Institute of Chemistry (LIC), Faculty of Science, Leiden University
• Date: 2023-06-07