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Light-Harvesting Spin Hyperpolarization of Organic Radicals in a Metal-Organic Framework.
J Am Chem Soc
January 2025
Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
Light-driven spin hyperpolarization of organic molecules is a crucial technique for spin-based applications such as quantum information science (QIS) and dynamic nuclear polarization (DNP). Synthetic chemistry provides the design of spins with atomic precision and enables the scale-up of individual spins to hierarchical structures. The high designability and extended pore structure of metal-organic frameworks (MOFs) can control interactions between spins and guest molecules.
View Article and Find Full Text PDFA Proof-of-Concept Study of Ulipristal Acetate for Early Medication Abortion.
NEJM Evid
January 2025
Gynuity Health Projects, New York.
Background: The current regimen for early medication abortion in many countries is mifepristone and misoprostol, but mifepristone is relatively expensive and limited in many regions. Ulipristal acetate, with a similar chemical profile, might be an alternative. This proof-of-concept study evaluated ulipristal acetate and misoprostol for medication abortion through 63 days of gestation.
View Article and Find Full Text PDFAntibacterials with Novel Chemical Scaffolds in Clinical Development.
Drugs
January 2025
Department of Chemical Biology, Helmholtz Centre for Infection Research, Inhoffenstraße 7, 38124, Braunschweig, Germany.
The rise of antimicrobial resistance represents a significant global health threat, driven by the diminishing efficacy of existing antibiotics, a lack of novel antibacterials entering the market, and an over- or misuse of existing antibiotics, which accelerates the evolution of resistant bacterial strains. This review focuses on innovative therapies by highlighting 19 novel antibacterials in clinical development as of June 2024. These selected compounds are characterized by new chemical scaffolds, novel molecular targets, and/or unique mechanisms of action, which render their potential to break antimicrobial resistance particularly high.
View Article and Find Full Text PDFIntrinsic Mechanical Effects on the Activation of Carbon Catalysts.
J Am Chem Soc
January 2025
CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China.
The mechanical effects on carbon-based metal-free catalysts (C-MFCs) have rarely been explored, despite the global interest in C-MFCs as substitutes for noble metal catalysts. Stress is ubiquitous, whereas its dedicated study is severely restricted due to its frequent entanglement with other structural variables, such as dopants, defects, and interfaces in catalysis. Herein, we report a proof-of-concept study by establishing a platform to continuously apply strain to a highly oriented pyrolytic graphite (HOPG) lamina, simultaneously collecting electrochemical signals.
View Article and Find Full Text PDFPopulation pharmacokinetic analysis of teicoplanin in paediatric patients, including those receiving continuous kidney replacement therapy: a prospective cohort study.
J Antimicrob Chemother
January 2025
Pediatric Intensive Care Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain.
Objectives: Teicoplanin is a commonly used antibiotic in critically ill children. However, teicoplanin dosing is often inaccurate, especially in children undergoing continuous kidney replacement therapy (CKRT). This study aims to develop a population pharmacokinetic (PK) model to optimize teicoplanin dosing in critically ill children, including those on CKRT.
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