Hydrogen is considered as the fuel for next generation and extensive research is being
pursued for search of new techniques for hydrogen production from renewable sources …

Reduced nicotinamide adenine dinucleotide phosphate (NADPH) is an essential electron
donor in all organisms. It provides the reducing power that drives numerous anabolic …

Production of biohydrogen has the potential to be a renewable alternative to current
technologies. There are varieties of technologies for biological hydrogen production …

One of the most important biotechnological challenges is to develop environment friendly
technologies to produce new sources of energy. Microbial production of biohydrogen …

If the atmosphere of the early Earth was hydrogen-rich, 1 it is reasonable to think that
hydrogenases, the enzymes enabling cells to use molecular hydrogen, were probably …

From the standpoints of both basic research and biotechnology, there is considerable
interest in reaching a clearer understanding of the diversity of biological mechanisms …

The utilization of hydrogen by micro-organisms as a source of reducing power or of protons
as final electron acceptors is mediated by metalloenzymes called hydrogenases. The need …

This review summarizes recent aspects of (di) nitrogen fixation and (di) hydrogen
metabolism, with emphasis on cyanobacteria. These organisms possess several types of the …

NADH: quinone oxidoreductase (complex I) pumps protons across the inner membrane of
mitochondria or the plasma membrane of many bacteria. Human complex I is involved in …

4366 Chem. Rev. 2007, 107, 4366− 4413 10.1021/cr050191u CCC: $65.00© 2007
American Chemical Society Published on Web 09/11/2007 the lower atmosphere1) because …