Author: adminCCchm6598

PTO single crystals with uniform morphology were synthesized using the hydrothermal method. The morphological characteristics of the samples were analyzed by scanning electron microscopy (SEM) (Supplementary Fig. S1a) and atomic force microscopy (AFM) (Supplementary Fig. S1b, c). The particles primarily have a size of 600 nm. To substantiate the ferroelectric nature of the PTO samples, X-ray diffraction (XRD) patterns (Supplementary Fig. S1d) and piezoresponse force microscopy (PFM) (Fig. 1b–d) were measured. The XRD patterns indicate that PTO samples are in a ferroelectric tetragonal phase validated by a standard PDF card (JCPDS 70-0746). Furthermore, the 180° phase-contrasted data and butterfly-shaped amplitude data presented in Fig. 1e showed…

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This study investigates the interaction of ciprofloxacin (CIP) with three different ionic liquids (ILs) with distinct cationic residues (pyrrolidinium, IL1 vs imidazolium, IL2, with bis (trifluoromethylsulfonyl)imide as counter anion and counter anions (bis (trifluoromethylsulfonyl)imide, IL2 vs hexafluorophosphate, IL3 with imidazolium as cationic residue) in the aqueous environment. A series of spectroscopic studies have been performed to elucidate the role of ILs in optical properties as well as aggregation behavior of CIP. The fluorescence quenching experiment indicated that IL with pyrrolidinium residue showed stronger binding with CIP, while bis (trifluoromethylsulfonyl)imide would be the preferred choice of anion. These quenching effects might…

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Separating trivalent f-block elements remains a central challenge due to their similar ionic radii and chemical behaviors. Historically, these separations have been achieved using single extractants, either alone or in combination with ion exchange chromatography. However, recent studies, including this work, have explored the potential of using synergic combinations of multiple extractants to enhance extraction and separation efficiencies for trivalent actinide separations. This study investigated synergic solvent extraction (SX) systems for extracting and separating americium and curium using three neutral organophosphorus ligands: octyl (phenyl)-N,N-diisobutylcarbamoylmethylphosphine (CMPO), dibutyl N,N-diethylcarbamylmethylenephosphonate (DBDECMP), and dihexyl N,N-diethylcarbamylmethylenephosphonate (DHDECMP), combined with either 2-thenoyltrifluoroacetone (HTTA, pKa = 6.25)…

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In this work, 4-((4-methylbenzyl)oxy)benzaldehyde resin-supported Pd(II)-Schiff base PS@Pd(OAc)2 was synthesized. FT-IR, XPS, TGA, ICP-MS, and powder XRD established the structure of PS@Pd(OAc)2. The morphology and distribution of elements on PS@Pd(OAc)2 were determined using SEM, TEM, and elemental mapping analysis. The heterogenized PS@Pd(OAc)2 catalyst was found to be efficient in promoting three-component Mizoroki–Heck coupling via an in situ Witting reaction, where (E)-1,2-diphenylethenes were efficiently synthesized from the Witting salt. In this one-pot reaction, this catalyst exhibits a distinct synergistic effect. The significant mass-transfer limitation results from a nonsignificant distribution of active sites amalgamated with the crumpling of catalysts, which facilitates the…

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Dalton Trans., 2025, Advance ArticleDOI: 10.1039/D4DT02796E, Paper Open Access &nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Richard Husar, Quentin Hervy, Thomas Dumas, Philippe Guilbaud, Matthieu Virot, Philippe MoisyAn electrolysis experiment on a plutonium solution led to a transient signal that was isolated through chemometrics. The transient species has been identified as a tetravalent plutonium peroxide complex.To cite this article before page numbers are assigned, use the DOI form of citation above.The content of this RSS Feed (c) The Royal Society of Chemistry ADVERTISEMENT: Halo, sobat pencinta slot! pernahkah denger istilah “slot gacor”? Kalau tidak, siap-siap…

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Mononuclear rare-earth metal alkyl complexes with an anilido-imino ligand were synthesized and characterized, and their catalytic ability for the formation of dihydroquinazolines and isoindolines from nitriles and amines was investigated. Reactions of rare-earth-metal trialkyl complexes RE(CH2SiMe3)3(THF)2 with the proligand HL (L= (o-(NHDipp)C6H4CH=N(CH2)2NC4H8, Dipp = 2,6-iPr2C6H3) in toluene afforded tridentate anilido-imino rare-earth metal dialkyl complexes LRE(CH2SiMe3)2 (RE = Gd (1a), Y (1b), Yb (1c), Lu (1d)) in good yields. Further study showed that these rare-earth metal catalysts could fulfill tandem addition/cyclization between ortho imine-functionalized benzonitriles and aromatic amines to afford 2,3-dihydroquinazolinimines for the first time. In addition, the catalysts are well…

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Synergetic Interplays of molecular dipoles and π–π conjugationsTo probe the conformational evolution of CPs under the spatial-electrostatic confinement, we embarked on molecular dynamics simulations by subjecting CP backbones to oriented electric fields. Potential energy surface (PES) scans on the prototype poly(3-hexylthiophene) (P3HT) monomer depict the molecular dipole moment oriented from the negatively-charged sulfur atom toward the positively-charged hexyl side chain (Supplementary Fig. S1). An oriented electric field is able to align this intrinsic molecular dipole moment, redistribute electrons along the electric-field direction, influence electrostatic forces on each atom19, thereby alter the equilibrium positions of atoms (Supplementary Note S1). Typically, P3HT dimer exhibits…

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Autism and Maternal Autoantibodies  Autism is a widely studied and highly heterogeneous neurodevelopmental condition. As awareness of autism has increased, so too has the potential for earlier diagnoses and implementation of therapeutic interventions. However, understanding its causes remains an active area of research. To date, there are several known etiologies for the development of autism, and a high incidence of idiopathic cases still exists.    Maternal autoantibody-related autism (MARA) is a subtype of autism linked to the presence of specific patterns of autoantibodies (MARA-ABs) in maternal circulation. Clinical studies identified that the targets for MARA-ABs are proteins known to be important…

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Developing resistance to insulin is a key step on the road to diabetes, making insulin resistance a target for treating metabolic dysfunction. Insulin orchestrates blood glucose levels by signaling fat and muscle cells to absorb the sugar and liver cells to stop pumping it out, so most research on insulin signaling focuses on these tissues. But a new study from researchers at the Max Planck Institute for Heart and Lung Research shows that insulin resistance in the endothelial cells that line blood vessels could also drive diabetes—and targeting signaling in those cells by another hormone, adrenomedullin, can improve insulin sensitivity…

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Despite the increasing use of NMs, adequate characterization data are often lacking, hampering the comparability of measurements, value of toxicity studies, and safe and sustainable NM design efforts. The stringent requirements for NM characterization require the availability of validated measurement methods for a range of properties. This task is facilitated by suitable reference materials (RMs) providing benchmark values that can be used to test and validate instrument performance, establish and validate measurement methods, verify results, and assess laboratory competence. Such activities are particularly important in heavily regulated areas such as medical diagnostics and therapies. These needs encouraged us to review…

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