Results 101 to 110 of about 35,705 (280)

Prebiotic aqueous reactions catalyzed by native nickel without hydrogen

The FEBS Journal, EarlyView.
Serpentinizing (H2‐producing) hydrothermal vents are candidate environments for metabolic origin. They generate highly reducing conditions that convert CO2 to formate and methane in abiotic reactions resembling reactions of the acetyl‐CoA pathway of CO2 fixation. They also contain natural catalysts. Native nickel (Ni0), like Fe0, Co0, and their alloys,
Carolina Garcia Garcia, Max Brabender, William F. Martin   +2 more
wiley   +1 more source

Methylacidiphilum fumariolicum SolV, a thermoacidophilic ‘Knallgas' methanotroph with both an oxygen-sensitive and -insensitive hydrogenase

The ISME Journal, 2016
Methanotrophs play a key role in balancing the atmospheric methane concentration. Recently, the microbial methanotrophic diversity was extended by the discovery of thermoacidophilic methanotrophs belonging to the Verrucomicrobia phylum in geothermal ...
Sepehr S. Mohammadi, A. Pol, T. V. van Alen, M. Jetten, H. O. D. op den Camp   +4 more
semanticscholar   +1 more source

Hydrogen Evolution via Oxygen Tolerant [NiFe]‐Hydrogenase Immobilized on TiO2 Nanotubes

Nano Select
[FeFe]‐hydrogenase has been of great interest due to its high enzymatic activity for hydrogen evolution reactions (HERs). However, the big challenge of [FeFe]‐hydrogenase is a significant performance degradation in aerobic conditions. On the other hand, [
Hwapyong Kim, Ki Nam Kim, Sung Hyun Lee, Chang‐Hoon Nam, Young‐Sam Lee, Su‐Il In   +5 more
doaj   +1 more source

Removal of Photosystem I Subunit PsaE Leads to Photosynthetic Hydrogen Production in a Cyanobacterial PsaF‐HoxYH Fusion Strain

Plant, Cell &Environment, EarlyView.
ABSTRACT Photosynthetic hydrogen (photoH2) production is a promising approach for the utilisation of solar energy. Fusion of a hydrogenase (H2ase) to photosystem I (PSI) provides a direct light‐driven route for photoH2 generation. We established the lateral transmembrane subunit PsaF of PSI as a new fusion partner for the NiFe‐hydrogenase (HoxYH) in ...
Florian Paul, Nadine Strabel, Marko Boehm, Jens Appel, Kirstin Gutekunst   +4 more
wiley   +1 more source

Structure–activity relationship study shows versatility in substrate specificity for heterodisulfide reductase in methanogenic archaea

Protein Science, Volume 35, Issue 7, July 2026.
Abstract Hydrogenotrophic methanogens are anaerobic archaea that convert carbon dioxide and hydrogen into methane. Central to this process is the heterodisulfide reductase (Hdr), which catalyzes the reduction of the heterodisulfide made of coenzyme M and coenzyme B. In vivo, Hdr functions in association with electron‐donating modules such as the [NiFe]‐
Mahdi Faal Maleki, Joakim Bøgelund Jakobsen, Eva Danielle Schuiten, Tristan Wagner, André Luis Alves Neves, Lennart Bunch   +5 more
wiley   +1 more source

Photoelectrochemical H2 Evolution with a Hydrogenase Immobilized on a TiO2‐Protected Silicon Electrode

Angewandte Chemie, 2016
The combination of enzymes with semiconductors enables the photoelectrochemical characterization of electron‐transfer processes at highly active and well‐defined catalytic sites on a light‐harvesting electrode surface.
Chong‐Yong Lee, H. S. Park, J. Fontecilla-Camps, E. Reisner   +3 more
semanticscholar   +1 more source

Biomimetische Wasserstoffproduktion

, 2009
Krassen H. Biomimetic hydrogen production. Bielefeld (Germany): Bielefeld University; 2009.Hydrogenases catalyze the reduction of protons to molecular hydrogen with outstanding efficiency.
Krassen, Henning
core  

Purification and characterization of a hydrogenase from the marine green alga Tetraselmis subcordiformis

, 2011
Purification and characterization of a hydrogenase from the marine green alga Tetraselmis subcordiformisSoluble hydrogenase from a marine green alga, Tetraselmis subcordiformis, was purified to homogeneity and characterized under strict anaerobic ...
张卫, Chen, Zhaoan, Cao, Xupeng, Xue, Song, Zhang, Wei, Li, Wei, Fan, Fei   +6 more
core   +1 more source

[FeFe]‐Hydrogenase Mimics Bearing Germylene Ligands: Synthesis, Protonation, and Electrochemical Properties

ChemistryEurope, Volume 4, Issue 6, June 2026.
Protonation dynamics and spectroscopic detection of elusive intermediates in [FeFe]‐hydrogenase mimics bearing germylene ligands reveal key roles of ligand basicity in catalytic behavior. This work shows that the presence of germylene ligands of marked basicity in [FeFe]‐hydrogenase mimics of the type [Fe2(µ‐S2X)(E)n(CO)6–n] (S2X = (SCH2)2N(p‐MeOC6H4) (
Sergio Aguado, Javier A. Cabeza, Pablo García‐Álvarez, Mar Gómez‐Gallego, Miguel A. Sierra   +4 more
wiley   +1 more source

In vitro activation of [FeFe] hydrogenase: new insights into hydrogenase maturation

JBIC Journal of Biological Inorganic Chemistry, 2007
The in vitro activation of the [FeFe] hydrogenase is accomplished by combining Escherichia coli cell extracts containing the heterologously expressed inactive HydA with extracts in which hydrogenase-specific maturation proteins HydE, HydF, and HydG are expressed in concert. Interestingly, the process of HydA activation occurs rapidly and in the absence
McGlynn, SE, Ruebush, SS, Naumov, A, Nagy, LE, Dubini, A, King, PW, Broderick, JB, Posewitz, MC, Peters, JW   +8 more
openaire   +4 more sources