Pyrene hydrogel for promoting direct bioelectrochemistry: ATP-independent electroenzymatic reduction of N2

The nitrogenase system from Azotobacter: two-enzyme requirement for N2 reduction, ATP-dependent H2 evolution, and ATP hydrolysis.

The requirement for both an electron donor and ATP for the enzymatic reduction of N2 to ammonia was demonstrated with extracts of Clostridium pasteurianum,1-4 Azotobacter vinelandii,5 7 and Rhodospirillum rubrum.' 8 With hydrosulfite as the electron donor and an ATP-generating system (creatine phosphokinase), N2-reducing preparations from A. vinelandii and R. rubrum were shown to catalyze a con...

ATP-independent substrate reduction by nitrogenase P-cluster variant.

The P-cluster of nitrogenase is largely known for its function to mediate electron transfer to the active cofactor site during catalysis. Here, we show that a P-cluster variant (designated P*-cluster), which consists of paired [Fe(4)S(4)]-like clusters, can catalyze ATP-independent substrate reduction in the presence of a strong reductant, europium(II) diethylenetriaminepentaacetate [Eu(II)-DTP...

Analytical Bioelectrochemistry

Supramolecular electrode assemblies for bioelectrochemistry

For more than three decades, the field of bioelectrochemistry has provided novel insights into the catalytic mechanisms of enzymes, the principles that govern biological electron transfer, and has elucidated the basic principles for bioelectrocatalytic systems. Progress in biochemistry, bionanotechnology, and our ever increasing ability to control the chemistry and structure of electrode surfac...

nano-rods zno as an efficient catalyst for the synthesis of chromene phosphonates, direct amidation and formylation of amines

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