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Fluorine-Free Ion-Selective Membrane with Enhanced Mg Transport for Mg-Organic Batteries.
ACS Nano
January 2025
Department of Electrical and Computer Engineering and Texas Center for Superconductivity at the University of Houston, University of Houston, Houston, Texas 77204, United States.
Magnesium batteries offer a safer alternative for next-generation battery technology due to their insusceptibility to dendrite deposition. Selective membranes tailored for magnesium-ion conduction will unlock further technological advancement. Herein, we demonstrate fluorine-free magnesiated sulfonated poly(ether ether ketone) (Mg-SPEEK) selective membranes capable of facilitating magnesium-ion conduction while effectively rejecting soluble organic species.
View Article and Find Full Text PDFZIF-8-Embedded Cation-Exchange Membranes with Improved Monovalent Ion Selectivity for Capacitive Deionization.
Membranes (Basel)
January 2025
Department of Green Chemical Engineering, College of Engineering, Sangmyung University, Cheonan 31066, Republic of Korea.
Membrane capacitive deionization (MCDI) is an electrochemical ion separation process that combines ion-exchange membranes (IEMs) with porous carbon electrodes to enhance desalination efficiency and address the limitations of conventional capacitive deionization (CDI). In this study, a cation-exchange membrane (CEM) embedded with a metal-organic framework (MOF) was developed to effectively separate monovalent and multivalent cations in influent solutions via MCDI. To fabricate CEMs with high monovalent ion selectivity, ZIF-8 was incorporated into sulfonated poly(2,6-dimethyl-1,4-phenylene oxide) (SPPO) at various weight ratios.
View Article and Find Full Text PDFA corrole-based derivative as an ultra-fast response and high selective fluorescent probe for Mg and its application.
Spectrochim Acta A Mol Biomol Spectrosc
January 2025
School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China.
A new corrole derivative bearing 8-hydroxyquinoline moiety, which was labeled as 8-HQ-Corrole, serves as an efficient fluorescent probe for Mg in the presence of various interferents. This probe 8-HQ-Corrole displayed an ultra-fast response (2 s) to Mg with an impressive detection limit (33 nM) and a significant fluorescence enhancement, accompanying with a blue shift from 667 to 653 nm in fluorescence spectrum. MS and Job's plot analysis indicated that the enhanced fluorescence response was attributable to the formation of 1:2 stoichiometric complex between to Mg and 8-HQ-Corrole involving quinoline nitrogen and oxygen atoms.
View Article and Find Full Text PDFRNase P cleavage of pseudoknot substrates reveals differences in active site architecture that depend on residue N-1 in the 5' leader.
RNA Biol
December 2025
Department of Cell and Molecular Biology, Biomedical Centre, Uppsala University, Uppsala, Sweden.
We show that a small biotin-binding RNA aptamer that folds into a pseudoknot structure acts as a substrate for bacterial RNase P RNA (RPR) with and without the RNase P C5 protein. Cleavage in the single-stranded region in loop 1 was shown to depend on the presence of a RCCA-motif at the 3' end of the substrate. The nucleobase and the 2'hydroxyl at the position immediately 5' of the cleavage site contribute to both cleavage efficiency and site selection, where C at this position induces significant cleavage at an alternative site, one base upstream of the main cleavage site.
View Article and Find Full Text PDFMicroalgae-based biofertilizers improve fertility and microbial community structures in the soil of potted tomato.
Front Plant Sci
December 2024
College of Food Science and Engineering, Ningbo University, Ningbo, Zhejiang, China.
Continuous cropping decreases soil nutrients and destroys microbial community structure, so the development of eco-friendly and effective biofertilizers is necessary under present conditions. In this study, the preserving microalgal strain sp. (H) was firstly selected to be combined with agroforestry waste (shell powder, straw fermentation liquid) and the agroforestry microorganism sp.
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