Showing 2,441 - 2,460 results of 4,095 for search '"spectroscopy"', query time: 0.07s Refine Results
  1. 2441

    Synthesis of Nitrogen-Doped ZnS with Camellia Brushfield Yellow Nanostructures for Enhanced Photocatalytic Activity under Visible Light Irradiation by Gang-Juan Lee, Chi-Lun Hong, Valentina Batalova, Gennady Mokrousov, Jerry Wu

    Published 2013-01-01
    “…Nitrogen modified zinc sulfide photocatalysts were successfully prepared and characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), high-resolution transmission electron microscopy (HR-TEM), X-ray photoelectron spectroscopy (XPS), and surface area analysis. Thermal decomposition of the semisolid was carried out under nitrogen conditions at 500°C for 2 hours, and a series of nitrogen-doped ZnS photocatalysts were produced by controlling inflow flow rate of nitrogen at 15–140 mL/min. …”
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  2. 2442

    Molecularly-Imprinted Calcium Phosphate/Calcium Alginate Composite Microspheres by Surface Imprinting via Silane Crosslinking by Kongyin Zhao, Ning Gao, Chao Liu, Guoxiang Cheng

    Published 2008-10-01
    “…The CP/CA MICMs and non-imprinted composite microspheres (NICMs) were characterized by Fourier-transform infrared spectroscopy and optical microscopy. The adsorption behaviour of the CP/CA MICMs and NICMs were determined by ultraviolet spectrophotometry. …”
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  3. 2443

    Valorization of Waste Cooking Oil into Biodiesel via Bacillus stratosphericus Lipase Amine-Functionalized Mesoporous SBA-15 Nanobiocatalyst by Abdallah R. Ismail, Hamdy Kashtoh, Mohamed A. Betiha, Salem A. Abu Amr, Kwang-Hyun Baek, Nour Sh. El-Gendy

    Published 2022-01-01
    “…High-resolution X-ray diffractometer, Fourier transform infrared spectroscopy, N2 adsorption-desorption, field-emission scanning electron, and high-resolution transmission electron microscopic analyses proved the successful SBA-15 functionalization and enzyme immobilization. …”
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  4. 2444

    Chromatographic and Spectral Analysis of Two Main Extractable Compounds Present in Aqueous Extracts of Laminated Aluminum Foil Used for Protecting LDPE-Filled Drug Vials by Samuel O. Akapo, Sajid Syed, Anicia Mamangun, Wayne Skinner

    Published 2009-01-01
    “…By means of combined HPLC-UV, GC/MS, LC/MS/MS, and NMR spectroscopy, the two major compounds detected in the aqueous extracts of the representative commercial overwraps were identified as cyclic oligomers with molecular weights of 452 and 472 and are possibly formed from poly-condensation of the adhesive components, namely, isophthalic acid, adipic acid, and diethylene glycol. …”
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  5. 2445

    Solid Carbon Produced in an Inductively Coupled Plasma Torch with a Titan Like Atmosphere by D. Vacher, S. Menecier, M. Dudeck, M. Dubois, B. Devouard, E. Petit

    Published 2013-01-01
    “…Carbon exhibits two types of morphology more or less dense and it is analyzed by various analytic devices as MEB, SEM, TEM, EDS and Raman spectroscopy. The gathered carbon powder shows the presence of nanostructured particles.…”
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  6. 2446

    Experimental and Statistical Study on Wellbore Scaling Mechanisms and Characteristics for Huanjiang Oilfield by Na Zhang, Xicheng Wang, Jianmin Zhang, Xiaopeng He, Shaofei Kang, Jingyang Pu, Shuhang Fan, Xu Li

    Published 2022-01-01
    “…Ion chromatography (IC) was used to test the composition of 100 water samples, and energy dispersive spectroscopy (EDS), scanning electron microscope (SEM), and X-ray diffraction (XRD) were utilized to analyze the composition of 120 wellbore scale samples that were collected from the Huanjiang oilfield. …”
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  7. 2447

    Fabrication and Characterization of CuInSe2 Thin Film Applicable for a Solar Energy Light Absorption Material via a Low Temperature Solid State Reaction by Kuo-Chin Hsu, Yaw-Shyan Fu, Pei-Ying Lin, I-Tseng Tang, Jiunn-Der Liao

    Published 2013-01-01
    “…The chalcopyrite CuInSe2 thin film synthesized via a low temperature solid state reaction from CuSe and InSe powders was investigated using X-ray diffractomy (XRD), scanning electron microscope (SEM), energy dispersive spectrometer (EDS), transmission electron microscopy (TEM), and UV-vis absorption spectroscopy. CuSe and InSe phases react and directly transform into CuInSe2 without the occurrence of any intermediate phase. …”
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  8. 2448

    Application of LDH/Halloysite Nanocomposite as Solid-Phase Microextraction Fiber Adsorbent for Determination of Phenolic and Chlorophenols Compounds by Marzieh Piryaei, Mir Mahdi Abolghasemi, Sona Hassani

    Published 2023-10-01
    “…The size, morphology, composition, and properties of the prepared nanocomposite were also characterized using scanning electron microscopy (SEM), Fourier transform- infrared spectroscopy (FT-IR), energy-dispersive X-ray spectrometry (EDX), and thermogravimetric analysis (TGA). …”
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  9. 2449

    Room Temperature Terahertz and Frequency Combs Based on Intersubband Quantum Cascade Laser Diodes: History and Future by Manijeh Razeghi, Quanyong Lu

    Published 2025-01-01
    “…The feature of broadband, high-power, and low-phase noise of QCL combs is revolutionizing mid-IR spectroscopy and sensing by offering a new tool measuring multi-channel molecules simultaneously in the μs time scale. …”
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  10. 2450

    Physicochemical Properties of Calcium Phosphate Based Coating on Gutta-Percha Root Canal Filling by Afaf Al-Haddad, Muralithran G. Kutty, Noor Hayaty Abu Kasim, Zeti Adura Che Ab Aziz

    Published 2015-01-01
    “…The coated samples were characterized using Fourier transform infrared spectroscopy (FTIR), X-ray Diffraction (XRD), and field emission scanning electron microscope (FESEM). …”
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  11. 2451

    Electronic Properties of TiO2 Nanoparticles Films and the Effect on Apatite-Forming Ability by Johanna Löberg, Jenny Perez Holmberg, Ingela Mattisson, Anna Arvidsson, Elisabet Ahlberg

    Published 2013-01-01
    “…The electrochemical properties were investigated using cyclic voltammetry and impedance spectroscopy while the mineralization was tested by immersion in simulated body fluid. …”
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  12. 2452

    Characterization, structural study, Hirshfeld surface, vibrational properties and thermal analysis of a supramolecular hybrid compound: (C8H14N2)4·(TeBr6)3·2(Br) by Marwa Mhiri, Sergiu Shova, Mohamed Boujelbene

    Published 2025-01-01
    “…Vibrational properties analyzed using FT-IR and Raman spectroscopy confirmed the functional groups of both organic and inorganic components, while thermal analysis demonstrated stability up to 100 °C. …”
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  13. 2453

    Green Tea Polyphenol Epigallocatechin Gallate Interactions with Copper-Serum Albumin by Meiling Fu, Liangliang Zhang, Rick Killeen, Kenneth E. Onugwu, Robert M. McCarrick, Ann E. Hagerman

    Published 2025-01-01
    “…We proposed to determine whether EGCg binds or reacts with Cu(II)-serum albumin using fluorescence, UV–Visible and electron paramagnetic resonance (EPR) spectroscopy. Our results suggest that when serum albumin is loaded with Cu(II) in both sites, EGCg binds to the MBS-Cu(II) and reduces the copper to Cu(I). …”
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  14. 2454

    Effects of Different Blanching Methods and Freezing Rates on Textural Properties of Prepared Broccoli by ZHAO Yinuo, JIN Xin, BI Jinfeng, XIE Yitong, DU Ting

    Published 2025-01-01
    “…Low-field nuclear magnetic resonance (LF-NMR) spectroscopy and physicochemical analysis were used to evaluate the water distribution, water-holding capacity (WHC), electrical conductivity, and hardness of broccoli samples subjected to hot water or steam blanching followed by freezing at −20, −40, and −80 ℃. …”
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  15. 2455

    Assessing nanobody interaction with SARS-CoV-2 Nsp9. by Gennaro Esposito, Yamanappa Hunashal, Mathias Percipalle, Federico Fogolari, Tomas Venit, Ainars Leonchiks, Kristin C Gunsalus, Fabio Piano, Piergiorgio Percipalle

    Published 2024-01-01
    “…The interaction between SARS-CoV-2 non-structural protein Nsp9 and the nanobody 2NSP90 was investigated by NMR spectroscopy using the paramagnetic perturbation methodology PENELOP (Paramagnetic Equilibrium vs Nonequilibrium magnetization Enhancement or LOss Perturbation). …”
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  16. 2456

    Corrosion Resistant Coating from Nano Printed Circuit Board Powder for the Reinforced Concrete Structures by R. Mohana, D. Selvaganesh, A. Anto Issac, M. Vignesh Kumar

    Published 2023-01-01
    “…The corrosion-resistant efficiency of the developed nano PCB-coating on the steel bars was studied by polarization, electrochemical impedance spectroscopy, and accelerated corrosion technique. Also, the applicability of the nano PCB-coated rebar as reinforcement in the concrete environment was investigated. …”
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  17. 2457
  18. 2458

    C-N vs. C-C Bond Photodissociation in N-(tert-butyldiphenylmethyl)aniline by Stylianos Garas, Michael G. Siskos, Antonios K. Zarkadis

    Published 2004-01-01
    “…The direct photolysis of the title aniline compound Ph2(Me3C) C-NHPh in acetonitrile with 248 nm laser light results in the dissociation of the C-N bond giving the corresponding (tert-Bu)diphenylmethyl radical 1a• and the anilino radical PhNH• detectable by ns-laser flash photolysis (LFP) and ESR spectroscopy. The same radical 1a• is also produced from the corresponding (tert-Bu)diphenylmethyl chloride Ph2(Me3C)C-Cl either photolytically in MeCN through C-Cl bond homolysis or pulse radiolytically in THF; the (tert-Bu)diphenylmethyl cation is also detected, however, at sorter time scales because of its high reactivity in the solvent MeCN. …”
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  19. 2459

    Photocatalytic Decomposition of Amoxicillin Trihydrate Antibiotic in Aqueous Solutions under UV Irradiation Using Sn/TiO2 Nanoparticles by Robab Mohammadi, Bakhshali Massoumi, Mohammad Rabani

    Published 2012-01-01
    “…The resulting nanoparticles were characterized by XRD, TEM, SEM, UV-Vis reflectance spectroscopy, and BET analysis methods. The effects of Sn-doping on the crystal structure, surface area, adsorption properties, pore size distribution, and optical absorption properties of the catalysts were investigated. …”
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  20. 2460

    Solid Acids from Persulphated and Perchlorated Physical Mixtures of Zirconium and Titanium Hydroxides by Gamal M.S. El Shafei, Christine A. Philip

    Published 2002-12-01
    “…In contrast, the adsorption of persulphate anions before calcination stabilized the tetragonal phase with no rutile phase being detected in this case. Infrared spectroscopy showed that adsorbed S 2 O 8 2– anions were held more strongly by the solid than ClO 4 − anions which tended to decompose when the solid was calcined. …”
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