Interaction of [FeFe]-hydrogenases with single-walled carbon nanotubes

Drazenka Svedruzic Chang; Timothy J. McDonald; Yong-Hyun Kim; Jeffrey L. Blackburn; Michael J. Heben; Paul W. King

doi:10.1117/12.736232

11 September 2007 Interaction of [FeFe]-hydrogenases with single-walled carbon nanotubes

Drazenka Svedruzic Chang, Timothy J. McDonald, Yong-Hyun Kim, Jeffrey L. Blackburn, Michael J. Heben, Paul W. King

Proceedings Volume 6650, Solar Hydrogen and Nanotechnology II; 665011 (2007) https://doi.org/10.1117/12.736232
Event: Solar Energy + Applications, 2007, San Diego, California, United States

Abstract

Single-walled carbon nanotubes (SWNT) are promising candidates for use in energy conversion devices as an active photo-collecting elements, for dissociation of bound excitons and charge-transfer from photo-excited chromophores, or as molecular wires to transport charge. Hydrogenases are enzymes that efficiently catalyze the reduction of protons from a variety of electron donors to produce molecular hydrogen. Hydrogenases together with SWNT suggest a novel biohybrid material for direct conversion of sunlight into H₂. Here, we report changes in SWNT optical properties upon addition of recombinant [FeFe] hydrogenases from Clostridium acetobutylicum and Chlamydomonas reinhardtii. We find evidence that novel and stable charge-transfer complexes are formed under conditions of the hydrogenase catalytic turnover, providing spectroscopic handles for further study and application of this hybrid system.

Citation Download Citation

Drazenka Svedruzic Chang, Timothy J. McDonald, Yong-Hyun Kim, Jeffrey L. Blackburn, Michael J. Heben, and Paul W. King "Interaction of [FeFe]-hydrogenases with single-walled carbon nanotubes", Proc. SPIE 6650, Solar Hydrogen and Nanotechnology II, 665011 (11 September 2007); https://doi.org/10.1117/12.736232

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