Results 81 to 90 of about 139,239 (224)
Towards Scalable Electroenzymatic Hydrogen Production with [FeFe]‐Hydrogenase
The [FeFe]‐hydrogenase metalloenzyme is a promising biocatalyst for sustainable electrocatalytic hydrogen (H2) production, however important issues need to be addressed before this can happen. For future biotechnologies to be realized, the [FeFe]‐hydrogenase enzyme should be more oxygen resistant, be produced in viable quantities and ultimately ...
Sophie Webb, Ross D. Milton
wiley +1 more source
The Electron Transfer System of Syntrophically Grown Desulfovibrio vulgaris [PDF]
ABSTRACT Interspecies hydrogen transfer between organisms producing and consuming hydrogen promotes the decomposition of organic matter in most anoxic environments. Although syntrophic coupling between hydrogen producers and consumers is a major feature of the carbon cycle, mechanisms for energy recovery at the extremely low free
Joseph A. Ringbauer+23 more
openaire +3 more sources
Characteristics of sulfate-reducing bacteria isolated from technogenic ecotopes
The metabolic and corrosion activity of sulfate-reducing bacteria isolated from technogenic ecotopes was investigated. The sulfate-reducing bacteria had significant hydrogen sulfide production (representatives of Desulfovibriо genus had synthesized ...
D. R. Abdulina+2 more
doaj +1 more source
CO₂ emissions reached unprecedented levels in 2024, significantly contributing to climate change. Carbonic anhydrases, such as the enzyme from Persephonella sp., offer a promising approach for CO₂ sequestration by converting it into bicarbonate. Engineering these enzymes to enhance stability and catalytic efficiency is crucial for their large‐scale ...
Loredano Pollegioni, Gianluca Molla
wiley +1 more source
Utilization of Cathodic Hydrogen by Desulfovibrio vulgaris (Hildenborough) [PDF]
Summary: Desulfovibrio vulgaris (Hildenborough) can grow on acetate plus CO2 as carbon source with H2 as the sole source of energy. The capability of sulphate reducers to oxidize H2 has been proposed as a major factor in the anaerobic corrosion of metals. Utilization by D.
A. N. Moosavi+2 more
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Background Communities of microorganisms control the rates of key biogeochemical cycles, and are important for biotechnology, bioremediation, and industrial microbiological processes.
Yang Zamin K+8 more
doaj +1 more source
Sulphate reducing bacteria (SRB) can be found in alkaline environments. Due to their metabolite products such as hydrogen sulphide, the corrosion behaviour of materials in alkaline environments may be affected by the presence of SRB.
Tien Tran Thi Thuy+3 more
doaj +1 more source
The Mechanism of Nitrite Reductase
The mechanism for Cytochrome c nitrite reductase (CcNiR) has been obtained, including all six reduction steps. The protonation of NO was found to be the most difficult step to model. ABSTRACT Cytochrome c nitrite reductase (CcNiR) activates nitrite and produces ammonia.
Per E. M. Siegbahn
wiley +1 more source
Insights into the Role of the D‐Cluster in [NiFe]‐CODH from Rhodospirillum Rubrum
Carbon monoxide dehydrogenase from Rhodospirillum rubrum is a nickel enzyme that catalyses the CO2/CO interconversion thanks to a unique [Ni4Fe4S] cofactor. In addition, the enzyme has three [4Fe4S] clusters: two B‐clusters and one D‐cluster. In this study, we show that the D‐cluster plays a role not only as an electron relay but also in the ...
Umberto Contaldo+5 more
wiley +1 more source
Mapping the Two-component Regulatory Networks in Desulfovibrio vulgaris [PDF]
D. vulgaris Hildenborough has 72 response regulators. The Desulfovibrio are sulfate reducing bacteria that are important in the sulfur and carbon cycles in anoxic habitats. Its large number of two componenent systems are probably critical to its ability to sense and respond to its environment.
Lara Rajeev+4 more
openaire +3 more sources