Showing 841 - 860 results of 1,139 for search '"infrared spectroscopy"', query time: 0.07s Refine Results
  1. 841

    Optimization and characterization of bioactive secondary metabolites from Streptomyces sp CMSTAAHL-4 isolated from mangrove sediment by Selvaraj Jeraldin Nisha, Ganapathi Uma, Ramamoorthy Sathishkumar, Vincent Samuel Gnana Prakash, Rimal Isaac, Thavasimuthu Citarasu

    Published 2025-01-01
    “…Alcohols, alkenes, alkynes, alkyl halides, carboxylic acids, aliphatic esters functional groups were identified by fourier transform infrared spectroscopy, gas chromatography and mass spectrometer analysis of the secondary metabolites revealed five bioactive compounds. …”
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    Article
  2. 842

    Enhancement of Antioxidant Activity, Stability, and Structure of Heme-Peptides by L-Lysine by Yinghui Zhang, Wei Cui, Hui Zhou, Lifang Zou, Zhaoming Wang, Kezhou Cai, Baocai Xu

    Published 2025-01-01
    “…Fourier-transform infrared spectroscopy and fluorescence spectroscopy analysis showed that Lys enhanced the conformational stability of the heme-peptides. …”
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  3. 843

    Understanding the post-curing behaviors of polymethylacrylimide: Curing kinetics and molecular mobility by Yuan Chen, Xiaolian Qiang, Yaping Zhang, Ningning Song, Lixian Guo, Siyuan Zhang, Chunrong Tian, Keping Chen

    Published 2025-02-01
    “…Fourier transform infrared spectroscopy demonstrated that the cyclization of anhydride groups predominantly occurred at lower post-curing temperatures, while the decomposition and transformation were observed at higher temperatures. …”
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  4. 844

    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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  5. 845

    Coexistence and Adsorption Properties of Heavy Metals by Polypropylene Microplastics by Tingyu Fan, Jie Zhao, Yingxiang Chen, Miao Wang, Xingming Wang, Shun Wang, Xiaoyang Chen, Akang Lu, Shijiao Zha

    Published 2021-01-01
    “…The morphology of PP was observed by scanning electron microscopy (SEM), the surface elemental composition of PP was determined by X-ray photoelectron spectroscopy (XPS), and the functional groups of PP were analyzed by Fourier transform infrared spectroscopy (FTIR). The results showed that the adsorption behavior of microplastics to different heavy metals could be balanced in 32 hours. …”
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  6. 846

    Separation, Purification, Structural Characterization and in Vitro Antioxidant Activity of Low Molecular Mass Fucoidans by YU Fan, GUO Yingying, LI Na, DAI Xinyue, ZHU Wenjia, YAO Lin, JIANG Yanhua, WANG Lianzhu

    Published 2025-01-01
    “…The chemical composition and structure characteristics of LMWFs were analyzed using molecular exclusion chromatography (MEC), high performance liquid chromatography (HPLC), infrared spectroscopy (IRS) and nuclear magnetic resonance spectroscopy (NMRS), and the structure-antioxidant activity relationship was explored. …”
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  7. 847

    Eco-innovativebreak through: Tamarindshell-derived silver nanoparticlesforadvancedwastewaterbacterialpurification by Alaknanda J. Adur, Shilpashree Mayachar, N. Nandhini, Manjushree Mahadeva, Raajasubramanian Devarajan, Ramu Loganathan, Narendra Kuppan

    Published 2025-03-01
    “…The synthesized AgNPs were characterized using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), UV–Visible spectroscopy (UV–Vis), and transmission electron microscopy (TEM), revealing a crystalline structure with particle sizes ranging from 10 to 100 nm. …”
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  8. 848

    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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  9. 849

    Batch biosorption studies of ammonical nitrogen (NH3-N) ions from aqueous solutions using the ubiquitous bacteria Klebsiella sp.: equilibrium, kinetic, and thermodynamic studies by Fadaa Alown, Fuad Ameen, Ashiwin Vadiveloo

    Published 2025-01-01
    “…We used an extensive range of analytical techniques, such as Scanning Electron Microscopy, Xray diffraction, Brunauer-Emmett-Teller analysis, Transmission Electron Microscopy, and Fourier-Transform Infrared Spectroscopy, to confirm the accuracy of our results. …”
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  10. 850

    Modification in Physicochemical, Structural and Digestive Properties of Potato Starch During Heat-Moisture Treatment Combined with Microwave Pre- and Post-Treatment by Chunli Deng, Oksana Melnyk, Tatyana Marenkova, Yanghe Luo

    Published 2022-07-01
    “…The light microscopy, scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD) were used to determine the structural properties of starch. …”
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  11. 851

    The impact of copper additive content on the synthesis of SiC from rice husks by Kieu Do Trung Kien, Huynh Ngoc Minh

    Published 2025-01-01
    “…The SiC content, mineralogical composition, and microstructure of the products were analyzed using ISO 21068-2:2008, Fourier Transform Infrared Spectroscopy, x-ray Diffraction, Scanning Electron Microscopy, and Energy Dispersive x-ray Spectroscopy. …”
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  12. 852

    Enhancing the performance of bituminous hot mix pavements with graphene nanoplatelet additive using taguchi optimization by Suna Işık, Fatih İrfan Baş

    Published 2025-07-01
    “…A comprehensive set of tests, including penetration, softening point, flash point, elastic recovery, rotational thin film oven test (RTFOT), Fourier transform infrared spectroscopy (FTIR), and Marshall design experiments, were conducted on the mixtures to evaluate the influence of the selected parameters and levels on the properties of bitumen. …”
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  13. 853

    Valorization of Food Waste to Produce Eco-Friendly Means of Corrosion Protection and “Green” Synthesis of Nanoparticles by Georgii Vasyliev, Victoria Vorobyova

    Published 2020-01-01
    “…AgNPs were characterized by UV-Vis spectroscopy, dynamic light scattering (DLS), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscope (SEM), and energy-dispersive X-ray spectroscopy (EDX) analysis. …”
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  14. 854

    Characterization of Colombian Clay and Its Potential Use as Adsorbent by Iván Fernando Macías-Quiroga, Gloria Inés Giraldo-Gómez, Nancy Rocío Sanabria-González

    Published 2018-01-01
    “…The clay was characterized by using X-ray diffraction (XRD), cation exchange capacity (CEC), X-ray fluorescence (XRF), Fourier transform infrared spectroscopy (FT-IR), thermal analysis (TGA/DSC), and nitrogen adsorption at 77 K. …”
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  15. 855

    Combining solubilization and controlled release strategies to prepare pH-sensitive solid dispersion loaded with albendazole: in vitro and in vivo studies by Dehai Su, Mingyang Bai, Chaoqun Wei, Xiangyang Long, Xuezhen Liu, Xiangguang Shen, Huanzhong Ding

    Published 2024-12-01
    “…Characterization via Scanning Electron Microscopy (SEM), Powder X-ray Diffraction (PXRD), Differential Scanning Calorimetry (DSC), and Fourier Transform Infrared Spectroscopy (FT-IR) confirmed the high dispersion of ABZ in a crystalline state within the carrier. …”
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  16. 856

    Synthesis of Some Metal Complexes with New Heterocyclic Ligand (5-(((2-(3-(1<i>H</i>-indol-3-yl)acryloyl)phenyl)amino)methylene)-2-thiooxodihydropyrimidine-4,6(1<i>H</i>,5<i>H</i>)... by Thanaa Abdul Ameer Hilal, Ibtihal Kadhim Kareem

    Published 2025-01-01
    “…The results of spectrophotometry, nuclear magnetic resonance of proton (H-NMR), infrared spectroscopy (FTIR), ultraviolet and visible (UV-vis) spectroscopy, X-ray diffraction (XRD), elemental analysis (CHNS) and molar conductivity measurements were used to suggest the proposed structures. …”
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  17. 857

    Ag-Ag2O nanocomposite biosynthesis by mixed bacterial cultivation and effect of the ph on size and optical properties of the nanocomposite by Morad G. S. S. Al-Asbahi, Bashir A. Al-Ofiri, Fuad A. A. Saad, Adnan Alnehia, Muhammad Hadi

    Published 2025-02-01
    “…A range of analytical techniques, including X-ray Diffraction (XRD), UV-visible Spectroscopy (UV-vis), Fourier Transform Infrared Spectroscopy (FTIR), and Transmission Electron Microscopy (TEM), were employed to investigate the structural and optical characteristics of the nanocomposites. …”
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  18. 858
  19. 859

    Effect of Adding Silica Nanoparticles on the Physicochemical Properties, Antimicrobial Action, and the Hardness of Dental Stone Type 4 by Navid Aghbolaghi, Solmaz Maleki Dizaj, Ramin Negahdari, Amir Reza Jamei Khosroshahi, Yashar Rezaei, Sepideh Bohlouli, Mohammad Ali Ghavimi

    Published 2022-01-01
    “…The prepared set materials were subjected to the physicochemical studies; Fourier transmission infrared spectroscopy (FTIR) was taken up to investigate the functional groups and X-ray diffraction (XRD) was used to evaluate the crystallinity. …”
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  20. 860

    Synthesis of a Cationic Polyacrylamide under UV Initiation and Its Flocculation in Estrone Removal by Jiaoxia Sun, Xiqin Ma, Xiang Li, Jianxin Fan, Qingkong Chen, Xuelian Liu, Jin Pan

    Published 2018-01-01
    “…Fourier transform infrared spectroscopy (FT-IR), 1H nuclear magnetic resonance spectroscopy (1H NMR), thermogravimetry/differential scanning calorimetry (TG/DSC), and scanning electron microscopy (SEM) were employed to characterize the structure, thermal decomposition property, and morphology of the polymers, respectively. …”
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