Second and outer coordination sphere effects in nitrogenase, hydrogenase, formate dehydrogenase, and CO dehydrogenase

ST Stripp, BR Duffus, V Fourmond, C Léger… - Chemical …, 2022 - ACS Publications
Gases like H2, N2, CO2, and CO are increasingly recognized as critical feedstock in “green”
energy conversion and as sources of nitrogen and carbon for the agricultural and chemical …

Fundamentals, applications, and future directions of bioelectrocatalysis

H Chen, O Simoska, K Lim, M Grattieri, M Yuan… - Chemical …, 2020 - ACS Publications
Bioelectrocatalysis is an interdisciplinary research field combining biocatalysis and
electrocatalysis via the utilization of materials derived from biological systems as catalysts to …

When anaerobes encounter oxygen: mechanisms of oxygen toxicity, tolerance and defence

Z Lu, JA Imlay - Nature reviews microbiology, 2021 - nature.com
The defining trait of obligate anaerobes is that oxygen blocks their growth, yet the underlying
mechanisms are unclear. A popular hypothesis was that these microorganisms failed to …

Biohydrogen production from microalgae for environmental sustainability

S Li, F Li, X Zhu, Q Liao, JS Chang, SH Ho - Chemosphere, 2022 - Elsevier
Hydrogen as a clean energy that is conducive to energy and environmental sustainability,
playing a significant role in the alleviation of global climate change and energy crisis …

The catalytic cycle of [FeFe] hydrogenase: A tale of two sites

JA Birrell, P Rodriguez-Macia, EJ Reijerse… - Coordination Chemistry …, 2021 - Elsevier
Ever since the discovery of hydrogenases over 90 years ago (Stephenson and Stickland,
1931), their structure and mechanism of action have been intensively investigated. Of the …

Reversible H2 oxidation and evolution by hydrogenase embedded in a redox polymer film

S Hardt, S Stapf, DT Filmon, JA Birrell, O Rüdiger… - Nature …, 2021 - nature.com
Efficient electrocatalytic energy conversion requires devices to function reversibly, that is, to
deliver a substantial current at a minimal overpotential. Redox-active films can effectively …

Fantastic [FeFe]-hydrogenases and where to find them

S Morra - Frontiers in Microbiology, 2022 - frontiersin.org
[FeFe]-hydrogenases are complex metalloenzymes, key to microbial energy metabolism in
numerous organisms. During anaerobic metabolism, they dissipate excess reducing …

Current state of [FeFe]-hydrogenase research: biodiversity and spectroscopic investigations

H Land, M Senger, G Berggren, ST Stripp - ACS catalysis, 2020 - ACS Publications
Hydrogenases are redox enzymes that catalyze the conversion of protons and molecular
hydrogen (H2). Based on the composition of the active site cofactor, the monometallic [Fe] …

A safety cap protects hydrogenase from oxygen attack

M Winkler, J Duan, A Rutz, C Felbek… - Nature …, 2021 - nature.com
Abstract [FeFe]-hydrogenases are efficient H2-catalysts, yet upon contact with dioxygen their
catalytic cofactor (H-cluster) is irreversibly inactivated. Here, we combine X-ray …

Molecular hydrogen metabolism: a widespread trait of pathogenic bacteria and protists

SL Benoit, RJ Maier, RG Sawers… - … and Molecular Biology …, 2020 - Am Soc Microbiol
Pathogenic microorganisms use various mechanisms to conserve energy in host tissues
and environmental reservoirs. One widespread but often overlooked means of energy …