The amount of sodium ion binding in human sera and in dialyzed human sera was estimated from standard-addition titrations with an ion-selective electrode and from measurements of 23Na nuclear magnetic resonance (NMR) linewidth. For the untreated sera, maximum binding was 1% (1.4 mmol/L) as indicated by NMR; virtually no binding was found via the titration method. For dialyzed sera with low-sodium, normal-protein content, NMR indicated that sodium binding was less than 1.3% (0.14 mmol/L). The same dialyzed fluid analyzed with ion-selective electrodes shows no sodium binding, within the limits of experimental error (+/- 4%). Sodium ion binding to serum protein thus contributes only minimally to differences in sodium measurements observed between the direct (undiluted) ion-selective electrode and flame-photometric methods.
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Chem Asian J
March 2025
Aligarh Muslim University, Chemistry, INDIA.
The growing energy demand has underscored the importance of sustainable energy storage devices. Biomass-derived carbon dots (B-Cdots) have gained significant attention for their potential to address this challenge. Utilizing greener routes for the large-scale synthesis of B-Cdots is not only eco-friendly and cost-effective but also promotes sustainability.
View Article and Find Full Text PDFJ Contemp Dent Pract
December 2024
Department of Restorative Dentistry, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.
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Methods: Eighty single-root lower premolars were selected and decoronated. The root canals were then cleaned and shaped chemo-mechanically using ProTaper files up to F5, with 5.
Phys Chem Chem Phys
March 2025
Faculty of Physical Sciences, University of Iceland, 102, Reykjavik, Iceland.
Magnesium carbide (MgC) is the latest two-dimensional monolayer material with semiconductor properties containing 0.25 eV band gap. Upon adsorption of the Li/Na/K the semiconducting behavior of material changes to metallic.
View Article and Find Full Text PDFAdv Sci (Weinh)
March 2025
National Key Facility for Crop Gene Resources and Genetic Improvement/Key laboratory Grain Crop Genetic Resources Evaluation and Utilization Ministry of Agriculture and Rural Affairs, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, P. R. China.
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View Article and Find Full Text PDFCancer Med
March 2025
Universidad Autónoma del Estado de Morelos, Facultad de Medicina, Cuernavaca, Morelos, Mexico.
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