Results 51 to 60 of about 35,705 (280)

Hydrogen-fueled CO2 reduction using oxygen-tolerant oxidoreductases

Frontiers in Bioengineering and Biotechnology, 2023
Hydrogen gas obtained from cheap or sustainable sources has been investigated as an alternative to fossil fuels. By using hydrogenase (H2ase) and formate dehydrogenase (FDH), H2 and CO2 gases can be converted to formate, which can be conveniently stored ...
Jaehyun Cha, Hyeonseon Bak, Inchan Kwon, Inchan Kwon   +3 more
doaj   +1 more source

An extracellular [NiFe] hydrogenase mediating iron corrosion is encoded in a genetically unstable genomic island in Methanococcus maripaludis

Scientific Reports, 2018
Certain methanogens deteriorate steel surfaces through a process called microbiologically influenced corrosion (MIC). However, the mechanisms of MIC, whereby methanogens oxidize zerovalent iron (Fe0), are largely unknown.
Hirohito Tsurumaru, Naofumi Ito, K. Mori, S. Wakai, T. Uchiyama, Takao Iino, A. Hosoyama, Hanako Ataku, Keiko Nishijima, Miyako Mise, Ai Shimizu, T. Harada, H. Horikawa, Natsuko Ichikawa, T. Sekigawa, Koji Jinno, Satoshi Tanikawa, J. Yamazaki, K. Sasaki, Syuji Yamazaki, N. Fujita, S. Harayama   +21 more
semanticscholar   +1 more source

A gas breathing hydrogen/air biofuel cell comprising a redox polymer/hydrogenase-based bioanode

Nature Communications, 2018
Hydrogen is one of the most promising alternatives for fossil fuels. However, the power output of hydrogen/oxygen fuel cells is often restricted by mass transport limitations of the substrate.
Julian Szczesny, N. Marković, F. Conzuelo, S. Zacarias, I. Pereira, W. Lubitz, N. Plumeré, W. Schuhmann, A. Ruff   +8 more
semanticscholar   +1 more source

Distribution analysis of hydrogenases in surface waters of marine and freshwater environments. [PDF]

PLoS ONE, 2010
BACKGROUND: Surface waters of aquatic environments have been shown to both evolve and consume hydrogen and the ocean is estimated to be the principal natural source.
Martin Barz, Christian Beimgraben, Torsten Staller, Frauke Germer, Friederike Opitz, Claudia Marquardt, Christoph Schwarz, Kirstin Gutekunst, Klaus Heinrich Vanselow, Ruth Schmitz, Julie LaRoche, Rüdiger Schulz, Jens Appel   +12 more
doaj   +1 more source

Classification and phylogeny of hydrogenases [PDF]

FEMS Microbiology Reviews, 2001
Hydrogenases (H2ases) catalyze the reversible oxidation of molecular hydrogen and play a central role in microbial energy metabolism. Most of these enzymes are found in Archaea and Bacteria, but a few are present in Eucarya as well. They can be distributed into three classes: the [Fe]-H2ases, the [NiFe]-H2ases, and the metal-free H2ases.
P M, Vignais, B, Billoud, J, Meyer
openaire   +2 more sources

Growth- and substrate-dependent transcription of formate dehydrogenase and hydrogenase coding genes in Syntrophobacter fumaroxidans and Methanospirillum hungatei

, 2011
Transcription of genes coding for formate dehydrogenases (fdh genes) and hydrogenases (hyd genes) in Syntrophobacter fumaroxidans and Methanospirillum hungatei was studied following growth under different conditions.
Petra Worm, Plugge, C.M., Worm, P., Caroline M. Plugge, Alfons J. M. Stams, Stams, A.J.M., Xu Cheng, Cheng, X.   +7 more
core   +1 more source

Fantastic [FeFe]-Hydrogenases and Where to Find Them

Frontiers in Microbiology, 2022
[FeFe]-hydrogenases are complex metalloenzymes, key to microbial energy metabolism in numerous organisms. During anaerobic metabolism, they dissipate excess reducing equivalents by using protons from water as terminal electron acceptors, leading to ...
Simone Morra
doaj   +1 more source

Engineering an [FeFe]-Hydrogenase: Do Accessory Clusters Influence O2 Resistance and Catalytic Bias?

Journal of the American Chemical Society, 2018
[FeFe]-hydrogenases, HydAs, are unique biocatalysts for proton reduction to H2. However, they suffer from a number of drawbacks for biotechnological applications: size, number and diversity of metal cofactors, oxygen sensitivity.
G. Caserta, C. Papini, Agnieszka Adamska-Venkatesh, L. Pecqueur, C. Sommer, E. Reijerse, W. Lubitz, C. Gauquelin, I. Meynial-Salles, Debajyoti Pramanik, V. Artero, M. Atta, Melisa del Barrio, Bruno Faivre, V. Fourmond, C. Léger, M. Fontecave   +16 more
semanticscholar   +1 more source

Genome-Scale Mining of Acetogens of the Genus Clostridium Unveils Distinctive Traits in [FeFe]- and [NiFe]-Hydrogenase Content and Maturation

Microbiology Spectrum, 2022
Knowledge of the organizational and functional properties of hydrogen metabolism is pivotal to the construction of a framework supportive of a hydrogen-fueled low-carbon economy. Hydrogen metabolism relies on the mechanism of action of hydrogenases.
Pier Francesco Di Leonardo, Giacomo Antonicelli, Valeria Agostino, Angela Re   +3 more
doaj   +1 more source

A Perspective on the Applications of Triphasic Gas Storage in Electrochemical Systems

Advanced Science, EarlyView.
Gas storage in microporous materials positioned locally at an electrode or electrocatalyst surface enhances electrochemical processes. Abstract Microporous materials store gases under dry conditions (e.g., hydrogen or oxygen via physisorption), but in some cases microporous materials also show triphasic (e.g., in a solid|gas|liquid system) gas storage ...
Zhongkai Li, Corin T. Scott, Taku Suzuki‐Osborne, John P. Lowe, Dominic Taylor, Mariolino Carta, Neil B. McKeown, Andrew D. Burrows, Lucia H. Mascaro, Frank Marken   +9 more
wiley   +1 more source