Lithium-sulfur batteries suffer from severe self-discharge because of polysulfide dissolution and side reaction. In this work, a novel electrolyte containing bis(2,2,2-trifluoroethyl) ether (BTFE) was used to mitigate self-discharge of Li-S cells having both low- and high-sulfur-loading sulfur cathodes. This electrolyte meaningfully decreased self-discharge at elevated temperature, though differences in behavior of cells with high- and low-sulfur-loading were also noted. Further investigation showed that this effect likely stems from the formation of a more robust protective film on the anode surface.
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http://dx.doi.org/10.1021/am501665s | DOI Listing |
We report the cosolvency effect of formamidinium lead triiodide (FAPbI) in a mixture of γ-butyrolactone (GBL) and 2-methoxyethanol (2ME), a phenomenon where FAPbI shows higher solubility in the solvent blend than in either alone. We found that FAPbI exhibits 10× higher solubility in 30% 2ME in GBL than in 2ME alone and 40% higher solubility than in GBL alone at 90 °C. This enhanced solubility is attributed to the disruption of the hydrogen bonding network within 2ME, allowing its hydroxyl and ether groups to interact more freely with the solute.
View Article and Find Full Text PDFInflammopharmacology
March 2025
Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, Cairo, 11562, Egypt.
Using a bioassay-guided fractionation approach, the most potent anti-psoriatic components of Aster squamatus herb, Aster chinensis stalks, and Aster chinensis flowers, cultivated in Egypt, were identified and evaluated against Imiquimod (IMQ)-induced psoriasis in female BALB/c mice and compared to standard drug, mometasone. The topical application of A. chinensis stalk methanolic extract exhibited the strongest anti-psoriatic effects against IMQ-induced psoriasis model, as evidenced by improvements in psoriasis area severity index (PASI) score, histopathological analysis, and spleen index.
View Article and Find Full Text PDFBiotechnol Biofuels Bioprod
March 2025
Institute of Chemical, Environmental and Bioscience Engineering, TU Wien, 1060, Vienna, Austria.
Background: Given the global rise in antimicrobial resistance, the discovery of novel antimicrobial agents and production processes thereof are of utmost importance. To this end we have activated the gene cluster encoding for the biosynthesis of the potent antifungal compound ilicicolin H in the fungus Trichoderma reesei. While the biosynthetic gene cluster (BGC) is silent under standard cultivation conditions, we achieved BGC activation by genetically overexpressing the transcription factor TriliR.
View Article and Find Full Text PDFJ Neurol Surg A Cent Eur Neurosurg
March 2025
Department of Neurosurgery, University Hospital Leipzig, Leipzig, Germany.
Background: Degenerative changes in the cervical spine can include the gradual loss of functionality of the intervertebral disks, development of osteophytes and ligament hypertrophy. Removal of the intervertebral disk and replacement with a cage (anterior discectomy and fusion [ACDF]) is a standardized operative procedure in these patients. The implant should provide structural support, should restore the physiologic lordosis, and enable a solid fusion.
View Article and Find Full Text PDFWater Res
March 2025
State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, PR China; School of Materials Science and Engineering, Tiangong University, Tianjin 300387, PR China; Institute for Nanotechnology and Water Sustainability, College of Science, Engineering and Technology, University of South Africa Science Campus, Florida, Johannesburg 1710, South Africa. Electronic address:
High-efficiency lithium (Li) extraction from a salt-lake brine with a low Li concentration and a high Mg/Li mass ratio poses a great challenge owing to the great physical and chemical similarities between Mg and Li. In this study, a hollow fiber (HF) membrane with an inside diameter of 0.872 mm and an outside diameter of 1.
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