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1781
Characterization of Calcium Compounds in Opuntia ficus indica as a Source of Calcium for Human Diet
Published 2015-01-01“…The characterization of calcium compounds was performed by using Scanning Electron Microscopy, Energy Dispersive Spectrometry, X-ray diffraction, and infrared spectroscopy. Atomic Absorption Spectroscopy and titrimetric methods were used for quantification of total calcium and calcium compounds. …”
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1782
Pyrolysis-catalytic gasification of plastic waste for hydrogen-rich syngas production with hybrid-functional Ni-CaOCa2SiO4 catalyst
Published 2025-03-01“…The catalysts were analysed by N2 physisorption, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Temperature-programmed reduction (TPR) and in-situ Transmission Electron Microscopy (TEM). …”
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1783
Antimicrobial Potential of Secalonic Acids from Arctic-Derived <i>Penicillium chrysogenum</i> INA 01369
Published 2025-01-01“…The absolute configurations of these stereoisomers have been determined through conformational NMR analysis and circular dichroism spectroscopy. The antimicrobial activity of secalonic acids D and F has been evaluated against a diverse range of microorganisms, including Gram-positive multidrug-resistant <i>Staphylococcus aureus</i>, Gram-negative <i>Escherichia coli</i> ATCC 25922, <i>Pseudomonas aeruginosa</i> ATCC 27853, the phytopathogen <i>Pectobacterium carotovorum</i> VKM-B1247, and the fungi <i>Fusarium oxysporum</i> VKPM F 890, <i>Aspergillus fumigatus</i> VKM F-37, and <i>A. niger</i> ATCC 16404. …”
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1784
A combined model of shoot phosphorus uptake based on sparse data and active learning algorithm
Published 2025-01-01“…Results show that (1) the prediction accuracy of the combined prediction model has been greatly improved compared with simple empirical prediction models, with accuracy test results of R2 = 0.87, root mean square error = 2.39 kg/ha, and relative percentage difference = 2.71. (2) In performance tests with different sample sizes, two-dimensional correlation spectroscopy i.e., first-order differentially enhanced two-dimensional correlation spectroscopy (1Der-2DCOS) and two-trace 2DCOS of enhanced filling and milk stages (filling-milk-2T2DCOS)) can effectively and robustly extract spectral trait relationships, with good robustness, and can achieve efficient prediction based on small samples. (3) The hybrid model constrained by the Newton-Raphson-based optimizer’s active learning method can effectively filter localized simulation data and achieve localization of simulation data in different regions when solving practical problems, improving the hybrid model’s prediction accuracy. …”
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1785
Coloration and functionalization of organic cotton fabric using Chinese fringe leaf extraction: A greener approach
Published 2025-03-01“…Spectroscopic analyses, including UV−visible (UV−vis) spectroscopy and Fourier transform infrared spectroscopy (FTIR), confirmed the presence of flavonoid compounds as the key bio−colorants in the dye solution. …”
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1786
Sol–gel synthesis of silicon oxide (SiO2) nanoparticles: exploring gas sensing and photocatalytic applications
Published 2025-02-01“…Ultraviolet–visible (UV–Vis) spectroscopy analysis indicated a band gap energy of 5 eV. …”
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1787
Manganese metal organic frame work assisted magnetic ionic liquid single crystal
Published 2025-06-01“…This article reports the synthetic procedure and structural elucidation of this MOFIL compound (2) along with its precursors (A and B) and intermediate (1) compound by Fourier Transform Infra-Red (FTIR) spectroscopy, Ultraviolet- Visible (UV- Vis) spectroscopy, and single crystal X-ray crystallography. …”
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1788
Dynamically Cyclic Fe2+/Fe3+ Active Sites as Electron and Proton-Feeding Centers Boosting CO2 Photoreduction Powered by Benzyl Alcohol Oxidation
Published 2025-01-01“…More importantly, in situ attenuated total reflection Fourier transform infrared spectroscopy and gas chromatography–mass spectrometry spectroscopy, with isotope labeling of Deuteron-benzyl alcohol and 13CO2, confirmed that proton transfer from the hydroxyl group generates reactive protons at the Fe2+/Fe3+ site, enabling efficient CO2 photoreduction through subsequent protonation steps. …”
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1789
Mechanistic switch in corrosion behavior of magnesium alloy diamond lattice structures induced by argon plasma treatment
Published 2025-01-01“…X-ray photoelectron spectroscopy (XPS) and electrochemical impedance spectroscopy (EIS) confirmed the presence of a stable, protective layer composed of magnesium oxide, magnesium hydroxide, and magnesium carbonate on the DPNS-treated surfaces. …”
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1790
Esophageal oxyhemoglobin saturation as a resuscitative metric in hemorrhagic shock
Published 2024-11-01“…Non-invasive methods, including near-infrared spectroscopy, have demonstrated low sensitivity to tissue dysoxia.Methods We fabricated a new device that uses resonance Raman spectroscopy (RRS) to quantify oxyhemoglobin saturation (ShbO2) in the esophagus (eShbO2), tongue (tShbO2), and liver (hShbO2). …”
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1791
Biosynthesis of a range of ZnO nanoparticles utilising Salvia hispanica L. seed extract and evaluation of their bioactivity
Published 2025-02-01“…The synthesized NPs were evaluated using UV-Vis spectroscopy, FTIR spectroscopy, XRD, SEM, EDX, TEM, SAED, and HR-TEM methods to determine their characteristics. …”
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1792
Synthetic Approaches Toward Phosphorus-Containing BODIPY and Squaraine Dyes: Enhancing Versatility of Small-Molecule Fluorophores
Published 2024-12-01“…By leveraging the tunable nature of phosphorus-containing moieties, these dyes hold immense promise for addressing current challenges in spectroscopy, imaging, and material designs while unlocking new opportunities for advanced functional systems in chemistry, biology, and medicine.…”
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1793
Neuroimaging and electrophysiology evidence unveiling the mystery of disorders of consciousness
Published 2024-01-01“…Among them, neuroimaging techniques, including positron emission tomography (PET), functional magnetic resonance imaging (fMRI), and functional near-infrared spectroscopy (fNIRS), as well as electrophysiological techniques, including spontaneous electroencephalograms (EEG), event-related potentials (ERPs), and transcranial magnetic stimulation-induced electroencephalograms (TMS-EEG), have provided different dimensional features related to consciousness. …”
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1794
Microwave Irradiation of Nanohydroxyapatite from Chicken Eggshells and Duck Eggshells
Published 2014-01-01“…Sample characterization was done using by X-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM).…”
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1795
DNA Binding and Cleavage Activity of Binuclear Metal Complexes with Benzil-α-Monoxime Thiosemicarbzone
Published 2011-01-01“…Transition metal complexes of copper(II), nickel(II), cobalt(II) and iron(II) with benzil-α-monoxime thiosemicarbazone (BMOT) have been synthesized and characterized by molar conductance, magnetic moments, IR, electronic and ESR spectroscopy. Electrochemical behaviors of these complexes were investigated by cyclic voltammetric studies. …”
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1796
Synthesis, Characterization and Copolymerization of N-(phenylamino)maleimide with MMA
Published 2007-01-01“…Resulting copolymer was characterized by density measurement, intrinsic viscosity, solubility, FT-IR & 1H NMR spectroscopy. Effect of the solvent and time on copolymer yield was also investigated. …”
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1797
NMR and MD Simulations of Non-Ionic Surfactants
Published 2025-01-01“…In recent years, the combination of molecular dynamics (MD) simulations with multinuclear solid-state NMR spectroscopy and calorimetric techniques has evolved into the most powerful tool for their investigation. …”
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1798
Fast and Efficient Method for Imination of N-Aminorhodanine Using Inorganic Solid Support under Microwave Irradiation and Classical Heating
Published 2011-01-01“…All the compounds have been characterized by elemental analyses, NMR and IR spectroscopy. Results indicate that treatment of N-aminorhodanine with aldehydes in acetonitrile as solvent or under solventless system led to the corresponding imines (2a-2e), while reactions were performed in solvent such as methanol 3a-3e was formed as products of ring cleavage and imination.…”
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1799
Graft Copolymerization of Styrene from Poly(vinyl alcohol) via RAFT Process
Published 2011-01-01“…The structure of compounds was confirmed by FT-IR and 1HNMR spectroscopy. The graft copolymer was characterized by thermogravimetric analysis (TGA), X-ray diffraction (XRD), and scanning electron microscopy (SEM). …”
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1800
Synthesis, characterization and adsorption studies of an acrylic acid-grafted sodium alginate-based TiO hydrogel nanocomposite
Published 2018-02-01“…The structure and morphology of the nanocomposites were investigated using X-Ray Diffraction (XRD), Fourier Transform Infra-Red Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Brunauer-Emmett-Teller (BET) and thermogravimetric analysis techniques. …”
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