Cool technology advancement

The folks at MIT have not lost their touch... From Nature Nanotechnology:

Biologically templated photocatalytic nanostructures for sustained light-driven water oxidation
Over several billion years, cyanobacteria and plants have evolved highly organized photosynthetic systems to shuttle both electronic and chemical species for the efficient oxidation of water. In a similar manner to reaction centres in natural photosystems, molecular and metal oxide catalysts have been used to photochemically oxidize water. However, the various approaches involving the molecular design of ligands, surface modification and immobilization, 7 still have limitations in terms of catalytic efficiency and sustainability. Here, we demonstrate a biologically templated nanostructure for visible light-driven water oxidation that uses a genetically engineered M13 virus scaffold to mediate the co-assembly of zinc porphyrins (photosensitizer) and iridium oxide hydrosol clusters (catalyst). Porous polymer microgels are used as an immobilization matrix to improve the structural durability of the assembled nanostructures and to allow the materials to be recycled. Our results suggest that the biotemplated nanoscale assembly of functional components is a promising route to significantly improved photocatalytic water-splitting systems.

Running this through the Google translator (Science geek to English) we find:

We designed this bacteria that when hit by light, breaks the H2O into H2 and O.

Very cool -- probably more useful for fuel cells and not generation of hydrogen for combustion but still, this is only version 0.1

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About this Entry

This page contains a single entry by DaveH published on April 14, 2010 8:52 PM.

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