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Size-Dependent Reduction Kinetics of Iron Oxides in Single and Mixed Mineral Systems.
Environ Sci Technol
January 2025
Geomicrobiology, Department of Geosciences, University of Tübingen, 72076 Tübingen, Germany.
Iron(III) (oxyhydr)oxide minerals with varying particle sizes commonly coexist in natural environments and are susceptible to both chemical and microbial reduction, affecting the fate and mobility of trace elements, nutrients, and pollutants. The size-dependent reduction behavior of iron (oxyhydr)oxides in single and mixed mineral systems remains poorly understood. In this study, we used microbial and mediated electrochemical reduction approaches to investigate the reduction kinetics and extents of goethite and hematite.
View Article and Find Full Text PDFNutrient intakes of Canadian children and adolescents at school by meal occasion and location of food preparation.
Appl Physiol Nutr Metab
January 2025
Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada.
Canadian children consume a significant proportion of daily foods at school, do not benefit from any federal school food program, and have historically inadequate diets. Assessment of dietary intakes at school can inform policy discussions for the design, funding, and delivery of school-based nutrition interventions. The objectives were to examine the most recent nationally representative dietary intake data of Canadian children at school by (i) location of food preparation, (ii) meal occasion, and (iii) as a proportion of total daily intakes.
View Article and Find Full Text PDFRationale and design of the FAIR-HF2-DZHK05 trial: Ferric carboxymaltose assessment of morbidity and mortality in patients with iron deficiency and chronic heart failure.
Eur J Heart Fail
January 2025
Department of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Aims: While it is widely accepted that intravenous (IV) iron improves functional capacity, symptoms, and cardiovascular outcomes in patients with heart failure (HF) with reduced ejection fraction (HFrEF) diagnosed with iron deficiency (ID), three recently published cardiovascular outcome trials (AFFIRM-AHF, IRONMAN and HEART-FID) of IV iron supplementation in HF failed to demonstrate a significant benefit on their respective primary endpoints. Dosing of IV iron after the initial correction of baseline ID - by design or as a result of trial circumstances - was relatively low (i.e.
View Article and Find Full Text PDFNanosensor for Fe(II) and Fe(III) Allowing Spatiotemporal Sensing .
Nano Lett
January 2025
Disruptive & Sustainable Technologies for Agricultural Precision IRG, Singapore-MIT Alliance of Research and Technology, 1 CREATE Way, #03-06, Singapore 138602, Singapore.
Fluorescent nanosensors operating have shown recent success toward informing basic plant biology and agricultural applications. We developed near-infrared (NIR) fluorescent nanosensors using the Corona Phase Molecular Recognition (CoPhMoRe) technique that distinguish Fe(II) and Fe(III) species with limit of detection as low as 10 nM. An anionic poly(p-phenyleneethynylene) (PPE) polyelectrolyte wrapped single-walled carbon nanotube (SWNT) shows up to 200% turn-on and 85% turn-off responses to Fe(II) and Fe(III), respectively, allowing spatial and temporal analysis of iron uptake in both foliar and root-to-shoot pathways.
View Article and Find Full Text PDFNew insights into the ferroptosis and immune infiltration in endometriosis: a bioinformatics-based analysis.
Front Immunol
January 2025
Department of Gynecology, Handan Central Hospital, Handan, China.
Background: Ferroptosis, a recently discovered iron-dependent cell death, is linked to various diseases but its role in endometriosis is still not fully understood.
Methods: In this study, we integrated microarray data of endometriosis from the GEO database and ferroptosis-related genes (FRGs) from the FerrDb database to further investigate the regulation of ferroptosis in endometriosis and its impact on the immune microenvironment. WGCNA identified ferroptosis-related modules, annotated by GO & KEGG.
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