Results 11 to 20 of about 14,761 (290)
Nonbiological Fractionation of Iron Isotopes [PDF]
Science, 2000 Laboratory experiments demonstrate that iron isotopes can be chemically fractionated in the absence of biology. Isotopic variations comparable to those seen during microbially mediated reduction of ferrihydrite are observed. Fractionation may occur in aqueous solution during equilibration between inorganic iron complexes. These findings provide insight
Anbar, A, Roe, J, Barling, J, Nealson, K
openaire +4 more sources
Quantitating Iron Transport across the Mouse Placenta In Vivo using Nonradioactive Iron Isotopes. [PDF]
J Vis Exp, 2022 Iron is essential for maternal and fetal health during pregnancy, with approximately 1 g of iron needed in humans to sustain a healthy pregnancy. Fetal iron endowment is entirely dependent on iron transfer across the placenta, and perturbations of this ...
Sangkhae V, Nemeth E.
europepmc +3 more sources
Women's Health Reports, 2022 Introduction: Pregnant women are a vulnerable population that are difficult to engage in clinical research. We report successful recruitment and retention strategies used in a longitudinal pilot study of urban racially/ethnically diverse pregnant women ...
Mary Dawn Koenig +11 more
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Frontiers in Medicine, 2021 Hereditary hemochromatosis is a genetic iron overload disease related to a mutation within the HFE gene that controls the expression of hepcidin, the master regulator of systemic iron metabolism. The natural stable iron isotope composition in whole blood
Emmanuelle Albalat +5 more
doaj +1 more source
The evaluation of the fission mode and fragment yields of neutron-rich nuclei by the dynamical model [PDF]
EPJ Web of Conferences, 2023 Nucleosynthesis by the rapid neutron-capture process (r-process) produces elements heavier than iron via neutron-rich nuclides, observed in the solar system and stars with various metallicities.
Tanaka Shoya +3 more
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Progress of Analytical Techniques for Stable Iron Isotopes
Yankuang ceshi, 2020 BACKGROUND Iron is the most abundant element on earth with variable valences. It is widely distributed in various minerals, rocks, fluids and organisms, and is involved in diagenesis, mineralization, hydrothermal activities and life activities. The study
QIN Yan +4 more
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Galactic cosmic ray effects on iron and nickel isotopes in iron meteorites [PDF]
, 2020 We present model calculations for cosmogenic production rates in order to quantify the potential effects of spallation and neutron capture reactions on Fe and Ni isotopes in iron meteorites.
Leya, Ingo +5 more
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Cells, 2020 Mitochondrial dysfunction and iron (Fe) dyshomeostasis are invoked among the mechanisms contributing to muscle aging, possibly via a detrimental mitochondrial–iron feed-forward loop.
Anna Picca +15 more
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Scientific Reports, 2021 Although redox reactions are recognized to fractionate iron (Fe) isotopes, the dominant mechanisms controlling the Fe isotope fractionation and notably the role of organic matter (OM) are still debated. Here, we demonstrate how binding to organic ligands
Elaheh Lotfi-Kalahroodi +6 more
doaj +1 more source
Distinct iron isotopic signatures and supply from marine sediment dissolution [PDF]
, 2013 Iron (Fe) inputs to the surface ocean may stimulate photosynthesis and have an impact on the uptake of carbon dioxide in the ocean on glacial to inter-glacial timescales of climate change1. Global ocean reservoir-flux models2 indicate that 90% of Fe used
John, Seth G. +8 more
core +2 more sources