Showing 701 - 720 results of 842 for search '"infrared spectroscopy"', query time: 0.08s Refine Results
  1. 701

    Enhancing Graphene Oxide Production and Its Efficacy in Adsorbing Crystal Violet: An In-Depth Study of Thermodynamics, Kinetics, and DFT Analysis by Soukaina El Bourachdi, Faiçal El Ouadrhiri, Fatima Moussaoui, Ebraheem Abdu Musad Saleh, Abdelhay El Amri, Raed H. Althomali, Asmaa F. Kassem, Marwa Mostafa Moharam, Ali raza Ayub, Kakul Husain, Ismail Hassan, Amal Lahkimi

    Published 2024-01-01
    “…Graphene oxide underwent thorough analysis using Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and specific surface area determination via the Brunauer–Emmett–Teller (BET) method. …”
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    Article
  2. 702

    Characterization of zeolitic imidazole framework (ZIF-8) catalyst for potential biodiesel production from waste cooking oil (WCO) by Chai Xin Hui, Ng Law Yong, Ng Ching Yin, Sim Jia Huey, Lim Ying Pei, Liew Josephine Ying Chyi

    Published 2025-01-01
    “…In this work, a range of analytical methods was utilized to characterize the catalyst, such as Fouriertransform infrared spectroscopy (FTIR), scanning electron microscopy coupled with energy dispersive X-ray spectroscopy (SEM-EDX), highresolution transmission electron microscopy (HRTEM), and a vibrating sample magnetometer (VSM). …”
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  3. 703

    Bioenergy potential of Chlorella vulgaris under the influence of different light conditions in a bubble column photobioreactor by S. Dhanasekar, R. Sathyanathan

    Published 2023-10-01
    “…Fourier transform infrared spectroscopy was used to illustrate the functional group of microalgae under different lighting conditions. …”
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    Article
  4. 704

    Comparative Evaluation of Structural Characteristics and in Vitro Biological Activities of Polysaccharides from Common Bean (Phaseolus vulgaris L.) and Those from Shiitake Mushroom... by XU Mengyue, TIAN Xin, WANG Junke, WU Aoxue, ZOU Zhiyi, WU Jiahui, WANG Hongbo

    Published 2024-12-01
    “…Fourier transform infrared spectroscopy (FTIR), high performance liquid chromatography (HPLC), high performance gel permeation chromatography (HPGPC), scanning electron microscopy (SEM) and Congo red assay were used to characterize the structures, monosaccharide compositions, molecular masses, and microstructures of the two kinds of polysaccharides. …”
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    Article
  5. 705

    Purification, Characterization and Antibacterial Mechanism of Plantaricin 2-1 by Mengyang LI, Xiaoxue CHE, Qingshen SUN

    Published 2025-02-01
    “…Listeria monocytogenes and Escherichia coli were used as indicator strain and the antibacterial mechanism of the plantaricin was determined by crystal violet staining, scanning electron microscopy, infrared spectroscopy, fluorescence spectroscopy, extracellular alkaline phosphatase (AKP), ATP, and lactate dehydrogenase (LDH) content analysis. …”
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    Article
  6. 706

    Cognitive improvement and prefrontal network interactions in individuals with remitted bipolar disorder after transcranial infrared laser stimulation by Douglas W. Barrett, Roger E. Davis, Jennifer E. Siegel-Ramsay, Amy Bichlmeier, Jorge R. C. Almeida, F. Gonzalez-Lima

    Published 2025-01-01
    “…Changes in PFC network interactions were measured with functional near-infrared spectroscopy (fNIRS) because this method can measure TILS effects on oxygen metabolism in the PFC of individuals with BD.ResultsParticipants reported no adverse effects from treatment, confirming the safety of this intervention in individuals with BD. …”
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    Article
  7. 707

    Extraction of Saponins from Xanthoceras sorbifolium Bunge Leaves Using Deep Eutectic Solvents and Their Inhibitory Activity against Postharvest Pathogenic Fungi by Xue LI, Xinyu CHU, Erzheng SU, Jiahong WANG

    Published 2025-02-01
    “…The mechanism of XLs saponins extraction by DES was investigated by scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FT-IR), and X-ray diffraction (XRD). …”
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    Article
  8. 708

    Fast Rate Production of Biodiesel from Neem Seed Oil Using a Catalyst Made from Banana Peel Ash Loaded with Metal Oxide (Li-CaO/Fe2 (SO4)3) by Ismail J. Madai, Yusufu Abeid Chande Jande, Thomas Kivevele

    Published 2020-01-01
    “…Decomposition profile of CBA was displayed by thermal gravimetric analysis (TGA), whereas in-depth analysis by scanning electron microscope (SEM), X-ray diffraction (XRD), X-ray fluorescence (X-RF), and Fourier-transform infrared spectroscopy (FT-IR) revealed that the high efficiency displayed by a catalyst from banana ash calcined at 650°C was due to the presence of potassium carbonate (K2CO3), a calcium magnesium silicate (CaMgSiO4), and potassium sodium sulphate (KNaSO4) contents that accounted for the high basicity of up to 11.09. …”
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  9. 709

    The Study’s Chemical Interaction of the Sodium Silicate Solution with Extender Pigments to Investigate High Heat Resistance Silicate Coating by Cuong Manh Le, Thu-Huong Le

    Published 2021-01-01
    “…The effect of curing time on the chemical interaction between sodium silicate solution and extender pigments (ZnO, TiO2, Fe2O3, CaCO3, and Na2SiF6) was investigated by Fourier transform infrared spectroscopy (FT-IR), thermal gravimetric analysis (TGA), and X-ray diffraction (XRD). …”
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  10. 710

    Optimization of photocatalytic degradation of Eriochrome Black T from aqueous solution using TiO2-biochar composite by Mohammednur Abdu, Solomon Tibebu, Saeideh Babaee, Abebe Worku, Titus A.M. Msagati, Jemal Fito Nure

    Published 2025-03-01
    “…The TiO2-BC composite (TBC-1) was synthesized via the sol-gel method and characterized using X-ray diffraction, BET surface area analysis, Fourier-transform infrared spectroscopy, Raman spectroscopy, and scanning electron microscopy with energy-dispersive X-ray spectroscopy. …”
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    Article
  11. 711

    Role of the very low frequencies of the renal oxygen saturation signal in acute kidney injury in newborns with perinatal asphyxia by Daniel Botero-Rosas, Sergio Agudelo-Pérez, Sergio Agudelo-Pérez, Gloria Troncoso, Maria C. Gómez, Eduardo Tuta-Quintero

    Published 2025-01-01
    “…The power of the very low-frequency component in the FFT was assessed by analyzing renal oxygen saturation using near-infrared spectroscopy (NIRS), focusing on a frequency band of approximately 0.01 Hz. …”
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  12. 712

    Life cycle assessment for calcination process of flue gas desulfurization gypsum and transformation into β-CaSO4·0.5H2O by Payal Bakshi, Asokan Pappu, Dhiraj Kumar Bharti

    Published 2025-03-01
    “…Effect of calcination on particle size distribution of FGD gypsum is studied along with mineralogical, compositional and morphological analysis by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and field emission scanning electron microscopy-energy dispersive spectroscopy (FESEM-EDS), respectively. …”
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  13. 713

    Magnetic nanoparticles of Nd2Fe14B prepared by ethanol-assisted wet ball milling technique by Younes Mehrifar, Hamed Moqtaderi, Seyedeh Mehri Hamidi, Farideh Golbabaei, Mahdi Hasanzadeh, Somayeh Farhang Dehghan

    Published 2025-01-01
    “…The morphology of the powder and nanoparticles, crystallinity, changes of the samples under temperature, magnetic properties, and the structural bonds were analyzed using field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA), vibrating sample magnetometry (VSM), and Fourier-transform infrared spectroscopy (FTIR).The microstructural images revealed that the shape of the particles changed from flat(730 nm) to spherical(76 nm) after WBMT. …”
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  14. 714

    Karakteristik komposit bio-foam pati-glukomanan pada variasi formulasi perbandingan foaming agent natrium bikarbonat dengan asam sitrat by I Wayan Arnata, Early Dea Kartika Fiano, I Gusti Ayu Lani Triani

    Published 2025-01-01
    “…The variables observed were density, tensile strength, compressive strength, water adsorption capacity, and functional groups by Fourier-Transform Infrared Spectroscopy (FTIR), surface morphology by Scanning Electron Microscope (SEM), and thermal stability by Thermogravimetric Analyzers/ Differential Thermogravimetric (TGA/DTG). …”
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  15. 715
  16. 716
  17. 717

    Development of vitex-derived polymer nanofibers using electrochemical sensors for the treatment of polycystic ovarian syndrome in rats as an animal model by Zaid H. Mahmoud, Uday Abdul-Reda Hussein, Najwa Aljbory, Mohammed Jawad Alnajar, Laleh Maleknia, Abolfazl Mirani, Ehsan kianfar

    Published 2025-03-01
    “…Materials and methods: Chasteberry-containing nanofibers were identified using Fourier-transform infrared spectroscopy (FTIR), Field Emission Scanning Electron Microscopy (FESEM), and thermal gravimetric analysis (TGA) tests, as well as drug release and antibacterial tests. …”
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  18. 718

    Thermal and ballistic characterization of epoxy matrix composites reinforced with babassu (Attalea speciosa) fiber: An experimental investigation by Lucas Moura Montenegro Reis, Pedro Henrique Poubel Mendonça da Silveira, Yago Soares Chaves, Rafael Travincas Pinto, Lucas de Mendonça Neuba, Sergio Neves Monteiro, Lucio Fabio Cassiano Nascimento

    Published 2025-03-01
    “…Characterization techniques included Fourier transform infrared spectroscopy (FTIR), which revealed interfacial bonding between fibers and the matrix, indicated by the intensification of the band at 1608 cm⁻1. …”
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  19. 719

    Polyurethane-Keratin Membranes: Structural Changes by Isocyanate and pH, and the Repercussion on Cr(VI) Removal by María D. Manrique-Juárez, Ana L. Martínez-Hernández, Oscar F. Olea-Mejía, Jaime Flores-Estrada, José L. Rivera-Armenta, Carlos Velasco-Santos

    Published 2013-01-01
    “…The effects of using diphenyl-methane-diisocyanate or toluene-diisocyanate and modifying the pH in keratin solutions were evaluated by scanning electron microscopy, Fourier transform infrared spectroscopy, and dynamical mechanical analysis. …”
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  20. 720

    Structural Characterization and Antioxidant Activity in Vivo of Polysaccharides from the Leaves of Hippophae rhamnoides L. by Niannian SONG, Yuxin YI, Xiaoping ZHANG, Bo YANG, Mangsier SAINAWAER, Abuduwaili AYITUXUN

    Published 2025-02-01
    “…The structure of HRLP-2 was identified based on the analysis of liquid chromatography, gas chromatography, UV, infrared spectroscopy, circular dichroism, Congo red experiment, as well as partial acid hydrolysis, periodate oxidation, and Smith degradation methods. …”
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    Article