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Rapid Electrochemical Uranium Extraction from Real Seawater via the Intermediate of Vacancy-Trapped Isolated Uranyl.
Inorg Chem
January 2025
State Key Laboratory of Environment-friendly Energy Materials, School of National Defence Science & Technology, Nuclear Waste and Environmental Safety Key Laboratory of Defense, Southwest University of Science and Technology, Mianyang, Sichuan 621010, P. R. China.
Electrochemical uranium extraction from seawater is a vital project for the sustainable development of the nuclear industry, which requires selective intrinsic binding sites for uranyl. In this work, oxygen vacancies (O vacancies) were developed as an atomically identified confinement for uranyl, and thus, rapid uranium extraction from seawater was achieved. In a short period of 700 s, InO nanosheets with rich O vacancies (V-rich InO nanosheets) exhibited a high extraction efficiency of 88.
View Article and Find Full Text PDFDual DNA replication modes: varying fork speeds and initiation rates within the spatial replication program in Xenopus.
Nucleic Acids Res
January 2025
Université Paris Cité, CNRS, Institut Jacques Monod, F-75013 Paris, France.
Large vertebrate genomes duplicate by activating tens of thousands of DNA replication origins, irregularly spaced along the genome. The spatial and temporal regulation of the replication process is not yet fully understood. To investigate the DNA replication dynamics, we developed a methodology called RepliCorr, which uses the spatial correlation between replication patterns observed on stretched single-molecule DNA obtained by either DNA combing or high-throughput optical mapping.
View Article and Find Full Text PDFUnderstanding the selectivity of nonsteroidal anti-inflammatory drugs for cyclooxygenases using quantum crystallography and electrostatic interaction energy.
IUCrJ
March 2025
Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, 02-093 Warsaw, Poland.
Quantum crystallography methods have been employed to investigate complex formation between nonsteroidal anti-inflammatory drugs (NSAIDs) and cyclooxygenase (COX) enzymes, with particular focus on the COX-1 and COX-2 isoforms. This study analyzed the electrostatic interaction energies of selected NSAIDs (flurbiprofen, ibuprofen, meloxicam and celecoxib) with the active sites of COX-1 and COX-2, revealing significant differences in binding profiles. Flurbiprofen exhibited the strongest interactions with both COX-1 and COX-2, indicating its potent binding affinity.
View Article and Find Full Text PDFAnti-melanogenic effects of hydroxyethyl chrysin through the inhibition of tyrosinase activity: and approaches.
Heliyon
January 2025
Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup, 56212, Republic of Korea.
The suppression of tyrosinase (TYR), a key enzyme in melanogenesis, has been suggested as an effective strategy for preventing melanin accumulation. We previously discovered the novel chrysin derivative hydroxyethyl chrysin (HE-chrysin) through an irradiation technique, which exerted higher anti-inflammatory and anti-cancer activities than original chrysin. In the present study, we explored whether HE-chrysin has antioxidant and anti-melanogenic capacity using B16F10 murine melanoma cells and molecular docking.
View Article and Find Full Text PDFActivation and Catalysis of Methane over Metal-Organic Framework Materials.
Acc Mater Res
January 2025
Department of Chemistry, University of Manchester, Manchester M13 9PL, U.K.
Methane (CH), which is the main component of natural gas, is an abundant and widely available carbon resource. However, CH has a low energy density of only 36 kJ L under ambient conditions, which is significantly lower than that of gasoline (. 34 MJ L).
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