Showing 2,501 - 2,520 results of 4,095 for search '"spectroscopy"', query time: 0.05s Refine Results
  1. 2501

    Quantification of safe operation conditions for large-area platinum-iridium electrodes in neurostimulation application. by Elisa Leusmann, Ciamak Abkai, Michael Tittelbach, Wigand Poppendieck

    Published 2024-01-01
    “…<h4>Approach</h4>Traditional methods such as Electrochemical Impedance Spectroscopy, Cyclic Voltammetry and biphasic, charge balanced current pulses were applied on Pt-Ir macroelectrodes in phosphate buffered saline solution to investigate reversible boundaries. …”
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    Article
  2. 2502

    Preparation of N-Doped TiO2-ZrO2 Composite Films under Electric Field and Heat Treatment and Assessment of Their Removal of Methylene Blue from Solution by Lefu Mei, Ranfang Zuo, Jing Xie, Libing Liao, Hao Ding

    Published 2014-01-01
    “…Portions of O atoms in the TiO2 network structure were replaced by N atoms as revealed by X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) analyses, suggesting formation of a nonstoichiometric compound TiO2-xNx on the composite film. …”
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  3. 2503

    Polyvinyl Pyrrolidone/Nickel Oxide (PVP/NiO) Nanocomposite: Synthesis, Characterization, and Removal Study of Eosin Y Using Adsorption Process by َaliakbar Dehno Khalaji, Emad Jafari, Moslem Emami, egin Mohammadi

    Published 2023-10-01
    “…In this study, the PVP/NiO nanocomposite was synthesized using the solution cast technique and characterized by Fourier transform infra-red (FT-IR), X-ray powder diffraction (XRD), thermogravimetric analysis (TGA), differential thermal analysis (DTA), energy-dispersive X-ray spectroscopy (EDS), and scanning electron microscope (SEM). …”
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  4. 2504

    Characterization of Phenolic Constituents from Prunus cerasifera Ldb Leaves by Wei Liu, Muhammad Farrukh Nisar, Chunpeng Wan

    Published 2020-01-01
    “…The isolated compounds were analyzed by 1H-nuclear magnetic resonance (1H-NMR), 13C-NMR, and electrospray ionization mass spectral (ESI-MS) spectroscopy. Eleven phenolic acids were identified as p-coumaric acid (1), caffeic acid (2), ferulic acid (3), chlorogenic acid (4), 3-O-caffeoylquinic acid (5), 5-O-coumaroylquinic acid (6), 3-O-caffeoylquinic acid methyl ester (7), chlorogenic acid methyl ester (8), 3-O-caffeoyl-5-O-coumaroylquinic acid or 3-O-coumaroyl-5-O-caffeoylquinic acid (9), gallic acid (10), and protocatechuic acid (11). …”
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  5. 2505

    Preparation and characterization of pH-responsive metal-polyphenol structure coated nanoparticles by Qile Xia, Yan Liang, Ailing Cao, Yan Cao, Luyun Cai

    Published 2024-05-01
    “…The zeta-potential and Fourier transform infrared spectroscopy data proved that electrostatic interaction and hydrogen bonding are dominant forces to form nanoparticles. …”
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  6. 2506

    Sensitivity Analysis of Gas Retrieval from FS MAX-DOAS Measurements by Jiangman Xu, Ang Li, Zhaokun Hu, Hongmei Ren

    Published 2024-12-01
    “…Multi-axis differential absorption spectroscopy (MAX-DOAS) has become an important tool for detecting trace gases in optical remote sensing. …”
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  7. 2507

    Structural Changes in Polyethylene Terephthalate (PET) Waste Materials Caused by Pyrolysis and CO Activation by José B. Parra, Conchi O. Ania, Ana Arenillas, Fernando Rubiera, José J. Pis, José M. Palacios

    Published 2006-06-01
    “…The derived changes in the textural and structural properties of the residual solids were studied by helium picnometry, N 2 and CO 2 adsorption isotherms, powder XRD, Raman spectroscopy and XPS. The study reveals that CO 2 activation of PET wastes develops a carbonaceous matrix with micropores. …”
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  8. 2508

    Porosity and morphology control of mesoporous Cu-BTC Metal-Organic Framework microparticles by Kobra Vazirinezhad, Fatemeh Shariatmadar Tehrani, Sedigheh Zeinali

    Published 2024-02-01
    “…In this study, Cu-BTC structures, one of the most widely used metal-organic frameworks (MOF), were synthesized by solvothermal technique, and the effect of metal-to-ligand ratio and the solvent content on their crystalline structure, chemical bonding, morphology, and porosity properties was investigated systematically by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), Fourier transform infrared (FTIR) spectroscopy, and N2 adsorption-desorption measurements, respectively. …”
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  9. 2509

    Synthesis and evaluation of the antibacterial activity of Cu(II) and Ni(II) complexes with mixed ligands based on glycine and dicarboxylic acids by Luisa Fernanda Múnera-Gómez, Juan Carlos Muñoz-Acevedo, Elizabeth Pabón-Gelves

    Published 2024-11-01
    “…The metal complexes were characterized by TGA, FTIR, UV-vis spectroscopy, and XRD. The metal: ligands (M:L1:L2) stoichiometry of these complexes is 1:2:2, and coordination around Cu(II) and Ni(II) seems to be octahedral, with the ligands bound through the N atom of the amino group and O atoms of the bridging carboxylate group. …”
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  10. 2510

    Effect of Amyloid Protein Fibrils on the Quality of Frozen Minced Meat by WU Xiao, LIU Zhanghanyu, LIU Shuo, WANG Mengting, SUN Xiaoshuai, LI Teng

    Published 2024-12-01
    “…The differences in secondary structures between WPI and APFs were investigated by circular dichroism (CD) and Fourier transform infrared spectroscopy (FTIR). Compared with WPI, APFs had less α-helices and more β-sheets. …”
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    Article
  11. 2511

    Synthesis and Structural Studies of Some Inorganic Polymers of Succinoyl Carboxymethyl Cellulose by H. D. Juneja, Manisha Joshi, N. T. KhatiI

    Published 2011-01-01
    “…The newly synthesized polymers were characterized by elemental analysis, IR spectroscopy, TG analysis, UV reflectance spectra and magnetic moment. …”
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  12. 2512

    Efficient Degradation of Congo Red Under Ultrasonic Irradiation Using Carbon Quantum Dots /Cellulose Composites by Pang Yean Ling, Soh Christopher Chun Min, Lim Steven

    Published 2025-01-01
    “…The structure and morphology of the CQDs/composites were characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), thermal analysis, and surface area analysis. …”
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  13. 2513

    Green Synthesis of S- and N-Codoped Carbon Nanospheres and Application as Adsorbent of Pb (II) from Aqueous Solution by Nadia Hussain, Salam Alwan, Hassan Alshamsi, Ibrahim Sahib

    Published 2020-01-01
    “…The synthesized nanospheres were examined by Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), field emission scanning electron microscopy, transmission electron microscopy (TEM), and nitrogen adsorption-desorption isotherms. …”
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  14. 2514
  15. 2515

    Screening of Aqueous Extract of Persea americana Seeds for Alpha-Glucosidase Inhibitors by Tajudeen Afolayan Lawal

    Published 2022-01-01
    “…The most active subfraction was subjected to Fourier transform infrared (FTIR) and gas chromatography mass spectroscopy (GC-MS) analysis to elucidate the active components. …”
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  16. 2516

    Synthesis and evaluation of CuNi-MOF as a corrosion inhibitor of AISI 304 and 316 stainless steel in 1N HCl solution by Alireza Veysi, Mahmoud Roushani, Hossein Najafi

    Published 2025-01-01
    “…The formation of CuNi-MOF protective layer on the stainless-steel surface was confirmed through Field Emission Scanning Electron Microscopes (FESEM), Energy Dispersive Spectroscopy (EDS), and X-Ray Diffraction (XRD) analysis. …”
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  17. 2517

    Design, Expression, and Inhibitory Effects of Antagonistic Single-Chain Platelet-Derived Growth Factor on Lung Cancer Cells by Salim Alhafyan

    Published 2025-01-01
    “…Far-UV circular dichroism spectroscopy demonstrated no significant alterations in the secondary structure of the designed sc-PDGF. …”
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  18. 2518

    Use of end-of-life tires for the production of a waterproofing agent as a strategy to promote the circular economy by Valentina Salcedo-Mojica, Jaime Arturo-Calvache, Cristina Ramírez-Meneses

    Published 2024-12-01
    “…It begins by identifying its chemical composition using Fourier transform infrared spectroscopy and selects a technology using the ELECTRE method. …”
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  19. 2519

    Microscale Investigation of Arsenic Distribution and Species in Cement Product from Cement Kiln Coprocessing Wastes by Yufei Yang, Jingchuan Xue, Qifei Huang

    Published 2013-01-01
    “…To improve the understanding of the immobilization mechanism and the leaching risk of Arsenic (As) in the cement product from coprocessing wastes using cement kiln, distribution and species of As in cement product were determined by microscale investigation methods, including electron probe microanalysis (EPMA) and X-ray absorption spectroscopy. In this study, sodium arsenate crystals (Na3AsO412H2O) were mixed with cement production raw materials and calcined to produce cement clinker. …”
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  20. 2520

    Effect of Superabsorbent Polymer (SAP) Internal Curing Agent on Carbonation Resistance and Hydration Performance of Cement Concrete by Jieting Xu, Xiao Qin, Zhenying Huang, Yongkang Lin, Ben Li, Zhengzhuan Xie

    Published 2022-01-01
    “…The hydration performance of internally cured concrete at different ages was studied by Fourier transform infrared spectroscopy (FTIR) test and X-ray diffraction (XRD) test. …”
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