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141
Synthesis and Advanced NMR Characterization of Ordered 3D Reticular Materials with PolySilicate Nodes and Hydrophobic OrganoSilicone Linkers
Published 2025-01-01“…Advanced solid-state NMR spectroscopy allowed us to unravel the molecular order of the nodes and their interconnection by the silicone linkers. …”
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142
Endophytic Fungi of <i>Calea pinnatifida</i> (Asteraceae): Dereplication of Crude Extracts, Antimicrobial Properties, and Identification of New Tetronic Acid Derivative Produced by...
Published 2024-12-01“…Notably, from the extract of <i>Hypomontagnella barbarensis</i>, two pairs of diastereoisomeric acyl-tetronic acid derivatives were isolated and characterized using MS and NMR spectroscopy. This study highlights the potential of endophytic fungi as a valuable source of novel antimicrobial agents.…”
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143
Exploring the anticancer potential of extracts and compounds from the heartwood of Cotinus coggygria Scop. wild growing in Serbia
Published 2025-02-01“…Structure elucidation was performed using NMR spectroscopy. Cytotoxicity was evaluated using MTT assay. …”
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144
Design, synthesis, SAR and ADMET analyses of the novel class of synthetic 7-amino[1,2,5]oxadiazolo[3,4-b]pyridine-6-carboxylate derivatives with vasorelaxant activity
Published 2025-01-01“…A twenty six 7-amino[1,2,5]oxadiazolo[3,4-b]pyridine-6-carboxylate (7-aminofurazano[3,4-b]pyridine-6-carboxylate) derivatives have been synthesized and characterized by IR, 1H NMR, 13C NMR spectroscopy, elemental analysis and LC-MS. The potential vasodilator activity of the synthesized compounds was assessed for their ability to induce relaxation of phenylephrine-precontracted isolated rat aortic segments. …”
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145
Mechanism of the blood-brain barrier modulation by cadherin peptides
Published 2024-06-01“…The binding properties of ADTC5, ADTC7, and ADTC9 to the extracellular-1 (EC1) domain of E-cadherin were evaluated using chemical shift perturbation (CSP) method in the two dimensional (2D) 1H-15N-heteronuclear single quantum coherence (HSQC) nuclear magnetic resonance (NMR) spectroscopy. Molecular docking experiments were used to determine the binding sites of these peptides to the EC1 domain of E-cadherin. …”
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146
Adsorbate-driven dynamic active sites in stannosilicate zeolites
Published 2025-01-01“…In this study, a dynamic transformation of framework Sn−O−Si sites to Sn−OH/Si−OH pairs and subsequently a pseudo-Brønsted acid in stannosilicate zeolites upon molecular adsorption, which is analogous to various adsorbates/reactants under working conditions, was identified by solid-state nuclear magnetic resonance (NMR) spectroscopy for the first time, which challenges the widespread assumption that the active center structures remain rigid/stable during the catalytic process. …”
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147
Unveiling Silent Atherosclerosis in Type 1 Diabetes: The Role of Glycoprotein and Lipoprotein Lipidomics, and Cardiac Autonomic Neuropathy
Published 2025-01-01“…Serum glycoprotein and lipoprotein lipidomics profiles were determined using <sup>1</sup>H-NMR spectroscopy. Subclinical atherosclerosis was defined as carotid intima-media thickness (cIMT) ≥ 1.5 mm. …”
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148
Microplastic analysis in soils: A comparative assessment
Published 2025-01-01“…We compared analytical protocols for MiP quantification in soil, consisting of Digital, Fluorescence, Fourier-transform infrared (FTIR), and Raman Microscopy as well as quantitative Pyrolysis-Gas Chromatography-Mass Spectroscopy (Py-GC-MS) and 1-proton nuclear magnetic resonance (1H NMR) spectroscopy as detection techniques. Each technique was coupled with a specific extraction procedure and evaluated for three soils with different textures and organic carbon contents, amended with eight types of large MiPs (0.5–1 mm) – high- and low-density polyethylene (HDPE and LDPE), polypropylene (PP), polystyrene (PS), polyamide (PA), polyethylene terephthalate (PET), polyvinyl chloride (PVC), and a biodegradable mulch film product composed of polybutylene adipate-co-terephthalate/ polylactic acid (PBAT/ PLA). …”
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149
Comparative Structural and Biophysical Investigation of <i>Lycosa erythrognatha</i> Toxin I (LyeTx I) and Its Analog LyeTx I-b
Published 2025-01-01“…Both peptides were isotopically labeled with <sup>2</sup>H<sub>3</sub>-Ala and <sup>15</sup>N-Leu to facilitate structural studies via NMR spectroscopy. <b>Results:</b> Circular dichroism and solid-state NMR analyses revealed that, while both peptides adopt α-helical conformations in membrane mimetic environments, LyeTx I-b exhibits a more amphipathic and extended helical structure, which correlates with its enhanced membrane interaction. …”
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150
Exploring the potential of black soldier fly live larvae as a sustainable protein source for laying hens: A comprehensive study on egg quality
Published 2025-01-01“…., chemical composition, fatty acid (FA) profile, and metabolic profile using nuclear magnetic resonance (NMR) spectroscopy. To this aim, 108 Lohman Brown hens were housed in 27 cages (9 replicates per treatment, 4 birds per pen) and monitored between 16 and 34 weeks of age. …”
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151
Novel type 2 diabetes prediction score based on traditional risk factors and circulating metabolites: model derivation and validation in two large cohort studiesResearch in context
Published 2025-01-01“…A total of 249 NMR-derived metabolites were quantified using nuclear magnetic resonance (NMR) spectroscopy. Metabolites were selected with LASSO regression and model performance was evaluated with Harrell's C-index. …”
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152
Studies on Hydrogenation of Liquid Natural Rubber Using Diimide
Published 2015-01-01“…The LNR and HLNR structures were characterized by Fourier-transform infrared (FTIR) and nuclear magnetic resonance (NMR) spectroscopies. The percentage of hydrogenation was calculated from NMR spectrum. …”
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153
Effects of chromophore interaction in the spectroscopy of ketocyanine dyes with a central pyranone or pyridone fragment
Published 2005-01-01“…The study is devoted to investigation of a number of ketocyanine dyes (polyenic ω,ω′-bisaminoketones) with a central pyranone or pyridone fragment and respective polymethine salts by UV-VIS absorption and NMR spectroscopies. It was found that replacement of bridging O atom with NMe group suppresses the chromophore interaction in the cross-conjugated ketone and corresponding tridecamethine salt. …”
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154
Enhancing water solubility of phytosterols through Co-amorphization with food-grade coformers
Published 2025-01-01“…Fourier-transform infrared, Raman, and 1H NMR spectroscopies, along with molecular dynamics simulations, revealed strong intermolecular interactions between PS and Nic. …”
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155
Syntheses, Characterization, and Antimicrobial Screening of N-(benzothiazol-2-yl)benzenesulphonamide and its Cu(I), Ni(II), Mn(II), Co(II), and Zn(II) Complexes
Published 2012-01-01“…The compounds were characterized using magnetic susceptibility measurements, UV/VIS spectrophotometry, infra red, proton and 13C nmr spectroscopies. The antimicrobial tests of the ligands and its metal complexes were carried out on both multi-resistant bacterial strains isolated under clinical conditions and cultured species using agar-well diffusion method. …”
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156
Anti-breast cancer activity of some novel quinoline derivatives
Published 2015-09-01“…The structures of the newly synthesized compounds were confirmed by elemental analyses, IR, 1H NMR and 13C NMR spectroscopies. In addition, the structure of compound 1 was confirmed through X-ray crystallography. …”
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157
Isolation, purification, structural characteristic and antioxidative property of polysaccharides from A. cepa L. var. agrogatum Don
Published 2020-03-01“…The monosaccharide composition, structural and antioxidative properties of ALAP-21 were investigated by GC–MS chromatography, FT-IR and NMR spectroscopies and three antioxidative activity tests in vitro. …”
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158
Ruthenium(II) Complex with 1-Hydroxy-9,10-Anthraquinone Inhibits Cell Cycle Progression at G0/G1 and Induces Apoptosis in Melanoma Cells
Published 2025-01-01“…Methods: The complexes were characterized by infrared (IR), UV–vis, <sup>1</sup>H, <sup>13</sup>C{<sup>1</sup>H}, and <sup>31</sup>P{<sup>1</sup>H} NMR spectroscopies, molar conductivity, cyclic voltammetry, and elemental analysis. …”
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159
Synthesis, Characterization, and Cytotoxic Activity of New Lanthanum(III) Complexes of Bis-Coumarins
Published 2006-01-01“…The lanthanum(III) complexes with bis-coumarins were characterized by different physicochemical methods—elemental analysis, IR-, <mml:math alttext="$chem{{}^{1}H}$"> <mml:msup> <mml:mi></mml:mi> <mml:mn>1</mml:mn> </mml:msup> <mml:mtext>H</mml:mtext> </mml:math>-, and <mml:math alttext="$chem{{}^{13}C}$"> <mml:msup> <mml:mi></mml:mi> <mml:mrow> <mml:mn>13</mml:mn> </mml:mrow> </mml:msup> <mml:mtext>C</mml:mtext> </mml:math>-NMR-spectroscopies, and mass spectral data. The spectral data of lanthanum(III) complexes were interpreted on the basis of comparison with the spectra of the free ligands. …”
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