Feb 5, 2013

An approach for catalyst design in artificial photosynthetic systems: focus on nanosized inorganic cores within proteins

Photosynthesis Research
Mohammad Mahdi Najafpour


Some enzymes can be considered as a catalyst having a nanosized inorganic core in a protein matrix. In some cases, the metal oxide or sulfide clusters, which can be considered as cofactors in enzymes, may be recruited for use in other related reactions in artificial photosynthetic systems. In other words, one approach to design efficient and environmentally friendly catalysts in artificial photosynthetic systems for the purpose of utilizing sunlight to generate high energy intermediates or useful material is to select and utilize inorganic cores of enzymes. For example, one of the most important goals in developing artificial photosynthesis is hydrogen production. However, first, it is necessary to find a "super catalyst" for water oxidation, which is the most challenging half reaction of water splitting. There is an efficient system for water oxidation in cyanobacteria, algae, and plants. Published data on the Mn-Ca cluster have provided details on the mechanism and structure of the water oxidizing complex as a Mn-Ca nanosized inorganic core in photosystem II. Progress has been made in introducing Mn-Ca oxides as efficient catalysts for water oxidation in artificial photosynthetic systems. Here, in the interest of designing ef...Continue Reading

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Mentioned in this Paper

Enzymes, antithrombotic
Particle Size
Staphylococcal Protein A
Nanocrystalline Materials
Enzymes for Treatment of Wounds and Ulcers
Chemical cofactor
Enzymes, hematological

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