Showing 3,321 - 3,340 results of 4,095 for search '"spectroscopy"', query time: 0.06s Refine Results
  1. 3321

    Purification, characterization and hypoglycemic activity of glycoproteins obtained from pea (Pisum sativum L.) by Gaoyixin Qin, Wu Xu, Junping Liu, Liyan Zhao, Guitang Chen

    Published 2021-05-01
    “…The physical and chemical properties of the three fractions were evaluated and compared by Fourier transform infrared spectroscopy (FT-IR), nuclear magnetic resonance (NMR), scanning electron microscope (SEM), high performance liquid chromatography (HPLC) and other analytical techniques. …”
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  2. 3322

    Optical, X-Ray Diffraction, and Magnetic Properties of the Cobalt-Substituted Nickel Chromium Ferrites (CrCo𝑥Ni1−𝑥FeO4, 𝑥=0,0.2,0.4,0.6,0.8,1.0) Synthesized Using Sol-Gel... by Sonal Singhal, Santosh Bhukal, Jagdish Singh, Kailash Chandra, S. Bansal

    Published 2011-01-01
    “…All the ferrite samples have been characterized using UV-VIS spectrophotometery, FT-IR spectroscopy, Transmission Electron Microscopy, powder X-Ray Diffraction, and magnetic measurements. …”
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  3. 3323

    Effect of cobalt ions doping on morphology and electrochemical properties of hydroxyapatite coatings for biomedical applications by Meysam Safari-Gezaz, Mojtaba Parhizkar, Elnaz Asghari

    Published 2025-01-01
    “…Polarization and electrochemical impedance spectroscopy (EIS) studies in a simulated body fluid (SBF) solution were conducted to evaluate the corrosion behavior of the coatings. …”
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  4. 3324
  5. 3325

    Assessing Redox Properties of Natural Organic Matters with regard to Electron Exchange Capacity and Redox-Active Functional Groups by Zhiyuan Xu, Zhen Yang, Hongping Wang, Jie Jiang

    Published 2020-01-01
    “…Electron exchange capacities (EEC) and RAFGs of LMWF NOMs at different Eh were analyzed using a novel electrochemical method and a three-dimensional excitation emission fluorescence (3DEEM) spectroscopy. We found that the reducing capacity in LMWF PPNOM was approximately 5-6 times higher than the bulk NOM, while only 7.8% LMWF PPNOM was accounted for in the bulk NOM. …”
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  6. 3326

    Sensitive Detection of Biomarker in Gingival Crevicular Fluid Based on Enhanced Electrochemiluminescence by Nanochannel-Confined Co<sub>3</sub>O<sub>4</sub> Nanocatalyst by Changfeng Zhu, Yujiao Zhao, Jiyang Liu

    Published 2025-01-01
    “…A Co<sub>3</sub>O<sub>4</sub> nanocatalyst was successfully confined within the SNF nanochannels through in situ electrodeposition, confirmed by X-ray photoelectron spectroscopy (XPS) and electrochemical measurements. …”
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  7. 3327

    Synthesis, Characterization and Antibacterial activity of Benzimidazole Derivatives and their Cu (ii),Ni (ii) and Co (ii) complexes by Haftom Welderufael, Dagne Addisu Kure, Endalkachew Asefa Moges, Lelisa File, Salah Hamza Sherif

    Published 2023-04-01
    “…The structures of all the synthesized ligands were confirmed by using IR, UV-Visible, 1H NMR, and 13C NMR spectroscopy. The Cu (II), Ni (II) and Co (II) complexes were confirmed by using IR and VU-Visible spectra.  …”
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  8. 3328

    Discovery of Antimalarial Drugs from Streptomycetes Metabolites Using a Metabolomic Approach by Siti Junaidah Ahmad, Mohd Badrin Hanizam Abdul Rahim, Syarul Nataqain Baharum, Mohd Shukri Baba, Noraziah Mohamad Zin

    Published 2017-01-01
    “…The highly sensitive instruments, such as Liquid Chromatography-Mass Spectrophotometry (LC-MS), Gas Chromatography-Mass Spectrophotometry (GC-MS), and Nuclear Magnetic Resonance (1H-NMR) spectroscopy, provide a wide range of information in the identification of potentially bioactive compounds. …”
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  9. 3329

    Silver nanoparticles immobilized on crosslinked vinyl polymer for catalytic reduction of nitrophenol: experimental and computational studies by Elsayed Elbayoumy, Ashraf A. El-Bindary, Tamaki Nakano, Mohamed M. Aboelnga

    Published 2025-01-01
    “…The prepared poly(DVB) and Ag/poly(DVB) composite were characterized by different techniques including Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), transmission electron microscopy (TEM), X-ray diffraction (XRD), and Brunauer Emmett-Teller (BET) analysis. …”
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  10. 3330

    Influence of Electrolyte Refreshing on the Photoelectrochemical Performance of Fiber-Shaped Dye-Sensitized Solar Cells by Zhibin Lv, Hongwei Wu, Xin Cai, Yongping Fu, Dan Wang, Zengze Chu, Dechun Zou

    Published 2012-01-01
    “…The electron transport and interfacial recombination kinetics were also systematically investigated by electrochemical impedance spectroscopy. With increased electrolyte refreshing times from 0 to 10, the open-circuit voltage (Voc) and fill factor (FF) increased, whereas the photocurrent density (Jsc) and power conversion efficiency (PCE) significantly decreased. …”
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  11. 3331

    Detection of Bioactive Compounds Produced by in Vitro Culture of Jojoba Plants (Simmondsia chinesi (Link) Schn.) Using GCMS and FTIR by Aman H. A. Althuluth, Aqeel A. Suhaim, Murtadha S. Auda

    Published 2024-12-01
    “…The quality of the formed callus and the most important secondary compounds were analyzed using Gas chromatography–mass spectrometry (GC–MS)and Fourier-transform infrared spectroscopy (FTIR).The MS media(murashige and skoog) supplemented with 1 mg L-1 NAA + 2.5 mg L-1 TDZ and 2 mg L-1 NAA + 5 mg L-1 TDZ was most effective for callus formation, with the short period of time and the highest percentages of callus formation and fresh weight.GC-MS analysis identified various active compounds in the jojoba plant callus. …”
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  12. 3332

    NaNO2/HCl/TBAB Catalyst: A Controlled Aerobic Oxidation of Sulfide Substrate in the Preparation of Polmacoxib Intermediate Under Mild Conditions by Macchindra Kadam, Deepak Nale, Datta Thorat, Venkateswara Rao Vallu, Bollikonda Satyanarayana, Padi Pratap Reddy, Sayujjata R. Vaidya

    Published 2024-12-01
    “…The formed products were characterized by techniques such as NMR, MS and IR spectroscopy. To the best of our knowledge, the present work is the first report on utilization of NaNO2/TBAB/HCl catalytic system for the preparation of Polmacoxib stage 1A intermediate. …”
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  13. 3333

    Silver Nanoparticles: Biosynthesis Using an ATCC Reference Strain of Pseudomonas aeruginosa and Activity as Broad Spectrum Clinical Antibacterial Agents by Melisa A. Quinteros, Ivana M. Aiassa Martínez, Pablo R. Dalmasso, Paulina L. Páez

    Published 2016-01-01
    “…A greenish culture supernatant of P. aeruginosa incubated at 37°C with a silver nitrate solution for 24 h changed to a yellowish brown color, indicating the formation of Ag-NPs, which was confirmed by UV-vis spectroscopy, transmission electron microscopy, and X-ray diffraction. …”
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  14. 3334

    Construction of nanodelivery system based on the interaction mechanism between ultrasound–treated soybean whey protein and quercetin: structure, physicochemical stability and bioac... by Xinru Cao, Jia Cao, Tianhe Xu, Lexi Zheng, Jingyi Dai, Xiaokun Zhang, Tian Tian, Kunyu Ren, Xiaohong Tong, Huan Wang, Lianzhou Jiang

    Published 2025-01-01
    “…Optimal ultrasound treatment (300–500 W) produced SWP–Que nanoparticles with smaller particle size, higher ζ–potential values, and more uniform dispersion. Fluorescence spectroscopy and FTIR analyses revealed that SWP primarily binds to Que through hydrophobic interactions. …”
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  15. 3335

    Inter- and intradialytic fluid volume changes and vascular stiffness parameters in patients on hemodialysis. by Aya Lafta, Judy Ukrainetz, Sara Davison, Stephanie Thompson, Aminu Bello, Aminu Bello, Branko Braam

    Published 2022-01-01
    “…Fluid status was assessed 15 minutes before the mid-week HD session by bio-impedance spectroscopy. Following this, ambulatory pulse wave velocity (PWV) and augmentation index (AIx) were measured for 24 hours before another mid-week HD session and then for 5 hours starting 30 minutes before and ending 30 minutes after the session.…”
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  16. 3336

    One-Pot Template-Free Hydrothermal Synthesis of Monoclinic Hollow Microspheres and Their Enhanced Visible-Light Photocatalytic Activity by Bei Cheng, Wenguang Wang, Lei Shi, Jun Zhang, Jingrun Ran, Huogen Yu

    Published 2012-01-01
    “…X-ray diffraction, scanning electron microscopy, nitrogen adsorption-desorption isotherms, fourier transform infrared spectrometry, and UV-visible diffuse reflectance spectroscopy are used to characterize the products. The results show that all the as-prepared BiVO4 samples have monoclinic phase structure and exhibit good crystallinity. …”
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  17. 3337

    Deterioration of Concrete Under Simulated Acid Rain Conditions: Microstructure, Appearance, and Compressive Properties by Lingxu Li, Norazura Muhamad Bunnori, Chee Ghuan Tan

    Published 2025-01-01
    “…This study investigated the impact of varying corrosion conditions on the microstructure and mechanical properties of concrete, which has not received sufficient attention using scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and compressive tests. In the laboratory, simulated acid rain solutions with pH levels of 0.0, 1.0, and 2.0 were prepared using sulfuric acid solution. …”
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  18. 3338

    Oxygen Vacancy-Mediated Interfacial Charge Transfer of Au/ZnO Schottky Heterojunctions for Enhanced UV Photodegradation by Zhufeng Shao, Hui Jia, Yufeng Zhang, Xiujuan Yang, Min Zhong, Chun Chang

    Published 2020-01-01
    “…Simultaneously, a distinct diversification for the NTRT-PL spectra is observed, closely associating with oxygen vacancies (Vo), which is confirmed by X-ray photoelectron spectroscopy (XPS) and electron spin resonance (ESR) spectra. …”
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  19. 3339

    Effect of Co-fermentation with Streptococcus salivarius subsp. thermophilus and Bifidobacterium animalis subsp. lactis on Improving the Quality of Fermented Milk by LIU Zhizhong, LIU Liwei, LIU Zhigang, CHEN Haili, CUI Hong, YANG Bo, ZHANG Jiaqi, WU Rigeng, YAO Kai

    Published 2025-01-01
    “…Changes in microrheological properties during the fermentation process were studied using multi-frequency diffusing wave spectroscopy, and changes in pH, titratable acidity (TA), viable bacterial count (VBC), exopolysaccharide (EPS) content, viscosity, water-holding capacity (WHC), texture properties, and sensory evaluation were examined as well. …”
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  20. 3340

    A Porous TiAl6V4 Implant Material for Medical Application by Axel Deing, Bérengère Luthringer, Daniel Laipple, Thomas Ebel, Regine Willumeit

    Published 2014-01-01
    “…Tensile tests, compression tests, and resonant ultrasound spectroscopy (RUS) were used to analyse mechanical properties. …”
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