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A flow equilibrium of zinc in cells of .
J Bacteriol
May 2024
Martin-Luther-University Halle-Wittenberg, Institute for Biology/Microbiology, Halle (Saale), Germany.
Unlabelled: The hypothesis was tested that a kinetical flow equilibrium of uptake and efflux reactions is responsible for balancing the cellular zinc content. The experiments were done with the metal-resistant bacterium . In pulse-chase experiments, the cells were loaded with radioactive Zn and chased with the 100-fold concentration of non-radioactive zinc chloride.
View Article and Find Full Text PDFZn and Cd labelled green manure to determine the fate and dynamics of zinc and cadmium in soil-fertilizer-crop systems.
Isotopes Environ Health Stud
June 2024
Institute of Agricultural Sciences, ETH, Zurich, Switzerland.
Isotope source tracing enables to accurately determine the fate of nutrients that are applied with fertilizers to soils. While this approach is well established for major nutrients such as nitrogen, it is not yet established for trace metals. Here, we aimed to determine the fate of the micronutrient zinc (Zn) and the contaminant cadmium (Cd) that were applied with an organic fertilizer to a soil-wheat system.
View Article and Find Full Text PDFQuantitative Zn, Al and H MAS NMR spectroscopy for the characterization of Zn species in ZSM-5 catalysts.
Phys Chem Chem Phys
October 2023
Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Prospekt Akademika Lavrentieva 5, Novosibirsk 630090, Russia.
Zn MAS NMR spectroscopy was used to characterize the state of Zn in Zn-modified zeolites ZSM-5. Two Zn enriched zeolite samples were prepared: by solid-state exchange with metal Zn (Zn/ZSM-5 sample) and by ion exchange with zinc formate solution (ZnO/H-ZSM-5 sample), both containing 3.8 wt% Zn.
View Article and Find Full Text PDFBiofortified Yellow-Fleshed Potatoes Provide More Absorbable Zinc than a Commonly Consumed Variety: A Randomized Trial Using Stable Isotopes in Women in the Peruvian Highlands.
J Nutr
October 2023
Norwich Medical School, University of East Anglia, Norwich, United Kingdom. Electronic address:
Background: Zinc-biofortified potatoes have considerable potential to reduce zinc deficiency because of their low levels of phytate, an inhibitor of zinc absorption, and their high consumption, especially in the Andean region of Peru.
Objectives: The purpose of this study was to measure fractional and total zinc absorption from a test meal of biofortified compared with regular potatoes.
Methods: We undertook a single-blinded randomized crossover study (using Zn and Zn stable isotopes) in which 37 women consumed 500-g biofortified or regular potatoes twice a day.
Unraveling Sodium-Ion Dynamics in Honeycomb-Layered NaMgZnTeO Solid Electrolytes with Solid-State NMR.
J Am Chem Soc
September 2023
Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada.
Article Synopsis
- All-solid-state sodium-ion batteries (SIBs) show promise as a safe, sustainable, and economical alternative to lithium-ion batteries for energy storage.
- Researchers investigated a new series of solid solutions, NaMgZnTeO, through various advanced methods to understand its structure and the behavior of sodium ions, achieving impressive Na-ion conductivity.
- They found that the disorder of Mg/Zn in the honeycomb structure leads to fast sodium-ion hopping, particularly in compounds with high Mg/Zn disorder, enhancing their potential for solid electrolyte applications.
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