ideas:

- isolate h2ase subunit of hydrogenase holoenzyme (get electrons from direct coupling of PSII/PSI)



how fast is the SH?

NiFe h2ase: 65 μmol/minmg

FeFe h2ase: 5400 μmol/minmg /9000 turnovers per second(90 times faster!)

Biomimics = ~same as NiFe (Nature of hydrogen interactions with Ni(II) complexes containing cyclic phosphine ligands with pendant nitrogen bases)

- membrane bound hydrogenase: 70 turnovers per second (same order of magnitude)