Results 171 to 180 of about 14,752 (295)

Monosubstituted N‐Arylhydroxylamine Chemistry: Integrating Contemporary Synthetic Approaches for the Efficient Construction of Diverse Heterocyclic Scaffolds

Chemistry – A European Journal, EarlyView.
Monosubstituted N‐arylhydroxylamines represent a unique subclass of hydroxylamines that act as pivotal intermediates in redox transformations and as versatile platforms for further synthetic transformations. They serve as key building blocks in the synthesis of architecturally complex heterocycles and other valuable organic compounds.
Michael G. Kallitsakis, Kyriakos D. Nikopoulos, Ioannis N. Lykakis   +2 more
wiley   +1 more source

Extremely cold ocean temperatures in iron formation brine pools of snowball Earth. [PDF]

Nat Commun
Lu K, Feng L, Mitchell RN, Lechte MA, Hoffman PF.   +4 more
europepmc   +1 more source

Iron isotopes in aquatic systems

, 2019
The cycling of iron (Fe) is a key component for understanding water quality and biogeochemical processes. It serves as mediator during biotic and abiotic processes, as electron acceptor during the degradation of organic matter, as surface for trace element and organic matter adsorption, and is necessary for primary production processes.
openaire   +1 more source

Coupled Eu Anomalies and Fe Isotopes Reveal a Hydrothermal Iron Source for Superior-Type Iron Formations: A Case Study from the Wilgena Hill Iron Formation, South Australia

Reviewed By Yoesoep Edhie Rachmad, Web of Science (Clarivate SSO) Researcher ID GRE-6442-2022, Coupled Eu Anomalies and Fe Isotopes Reveal a Hydrothermal Iron Source for Superior-Type Iron Formations: A Case Study from the Wilgena Hill Iron Formation,
Prof. Dr. Yoesoep Edhie Rachmad, Ph.D, DBA
core  

Homo‐/Heterodimeric Substrates Bias the Type and Multiplicity of Hydroxamic Acid Chelators Assembled by a NIS Synthetase DesD

Chemistry – A European Journal, EarlyView.
Chemoenzymatic reactions using the siderophore synthetase DesD from Salinispora tropica and hydroxamic acid substrates (native, non‐native) with different multiplicities (monomer, dimer) and components (homo‐/heterodimer) followed different reaction trajectories, which biased the architectures of the chelator major products and indicated DesD contains ...
Callum A. Rosser, Todd E. Markham, Rachel Codd   +2 more
wiley   +1 more source

Gallium Abundance and Isotope Geochemistry in Coal and Mudstone from the Huainan-Huaibei Coalfield: Implications for Geological Processes and Resource Utilization. [PDF]

ACS Omega
Wang C, Liu H, Wu D, Zhao S, Hu G, Liu W, Luo H.   +6 more
europepmc   +1 more source

The Role of Iron‐Hyponitrite Intermediates in Biology and Insights From Synthetic Model Complexes

Chemistry – A European Journal, EarlyView.
Despite the difference in active site architecture, NO reduction by different NOR enzymes is expected to be linked by a common intermediate: hyponitrite (N2O22−). However, experimentally, very little is known about the coordination chemistry of iron with hyponitrite and the expected Fe‐hyponitrite intermediates.
Michael O. Lengel, Nicolai Lehnert
wiley   +1 more source

Dietary perspectives on social asymmetry in a full Iron Age community of northern Italy: stable isotope evidence from the Patavine CUS-Piovego necropolis. [PDF]

Sci Rep
Capasso G, Prillo VG, Beck de Lotto MA, Lugli F, Butler CO, Nederbragt AJ, Nava A, Bondioli L, Gigante M, Vidale M, Leonardi G, Madgwick R.   +11 more
europepmc   +1 more source

Spotlight on the Nucleotide: Solid‐State NMR for the Investigation of ATP Hydrolysis in the ATPase SmsC

Chemistry – A European Journal, EarlyView.
Nucleotide‐detected solid‐state NMR has been applied to probe nucleotide conformations and dynamics during ATP hydrolysis using the dimeric P‐loop ATPase SmsC as a model protein. The different stages of ATP hydrolysis have been mimicked by ATP analogues for which different degrees of conformational heterogeneity have been observed. ABSTRACT Solid‐state
Nina Wehr, Laure Decamps, Julius Schlüter, Koen Linssen, Georg Künze, Kushal Sengupta, Serena DeBeer, Thomas Wiegand   +7 more
wiley   +1 more source

Influence of Sourdough Fermentation-Induced Dephytinization on Iron Absorption from Whole Grain Rye Bread-Double-Isotope Crossover and Single-Blind Absorption Studies. [PDF]

Nutrients
Hoppe M, Sandberg AS, Hulthén L.
europepmc   +1 more source