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High-efficiency Pb removal by hydroxy-sodalite for point-of-use drinking water purification.
J Hazard Mater
January 2025
Department of Ocean Science and Engineering, Southern University of Science and Technology, Shenzhen, China.
The development of cost-effective point-of-use (POU) devices that effectively remove lead (Pb) from drinking water is imperative in mitigating the threat of Pb contamination to public health in underdeveloped regions. Herein, we have successfully transformed inexpensive natural kaolinite as hydroxy-sodalite (HySOD) via a simple hydrothermal process, achieving an impressive yield of 91.5 %.
View Article and Find Full Text PDFInvestigating Environmental Determinants of Hookworm Transmission using GPS Tracking and Metagenomics Technologies.
Am J Trop Med Hyg
December 2024
Department of Parasitology, Noguchi Memorial Institute for Medical Research, University of Ghana, Accra, Ghana.
To identify potential sources of hookworm infections in a Ghanaian community of endemicity that could be targeted to interrupt transmission, we tracked the movements of infected and noninfected persons to their most frequented locations. Fifty-nine participants (29 hookworm positives and 30 negatives) wore GPS trackers for 10 consecutive days. Their movement data were captured in real time and overlaid on a community grid map.
View Article and Find Full Text PDFDetection of functional diversity gradients and their geoclimatic filters is sensitive to data types (occurrence vs. abundance) and spatial scales (sites vs. regions).
Plant Divers
November 2024
Laboratório de Ciências Ambientais, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro, Brazil.
Functional diversity (FD) reflects within- and between-site variation of species traits (α- and β-FD, respectively). Understanding how much data types (occurrence-based vs. abundance-weighted) and spatial scales (sites vs.
View Article and Find Full Text PDFSynthesis of a three-phase heterojunction NdVO/VO/BiVO by cation exchange method for the degradation of anionic azo dye orange II.
Dalton Trans
January 2025
Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, P.R. China.
Photocatalytic degradation of the azo dye orange II using NdVO/VO/BiVO under visible light is reported here, and this oxygen-rich defect three-phase heterojunction structure is constructed using a two-step cation exchange method. This heterojunction significantly enhances the separation and migration efficiency of photo-induced charges, while the accompanying oxygen defects effectively capture photogenerated electrons, thereby suppressing the recombination of electrons and holes. Experimental characterization and theoretical calculations demonstrate the efficient separation and transfer capabilities of photogenerated carriers and their excellent photocatalytic degradation performance.
View Article and Find Full Text PDFMg-dependent mechanism of environmental versatility in a multidrug efflux pump.
Structure
January 2025
Department of Chemistry, Britannia House, 7 Trinity Street, King's College London, London, SE1 1DB, UK; School of Biological Sciences, University of Southampton, Southampton, SO17 1BJ, UK. Electronic address:
Tripartite resistance nodulation and cell division multidrug efflux pumps span the periplasm and are major drivers of multidrug resistance among gram-negative bacteria. Cations, such as Mg, become concentrated within the periplasm and, in contrast to the cytoplasm, its pH is sensitive to conditions outside the cell. Here, we reveal an interplay between Mg and pH in modulating the structural dynamics of the periplasmic adapter protein, AcrA, and its function within the prototypical AcrAB-TolC multidrug pump from Escherichia coli.
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