Showing 81 - 100 results of 159 for search '"NMR spectroscopy"', query time: 0.05s Refine Results
  1. 81

    Binding Cellulose and Chitosan via Intermolecular Inclusion Interaction: Synthesis and Characterisation of Gel by Jiufang Duan, Chunrui Han, Liujun Liu, Jianxin Jiang, Jianzhang Li, Yiqiang Li, Chao Guan

    Published 2015-01-01
    “…The successful synthesis of Fc-cellulose and β-CD-chitosan was characterised by 13C-NMR spectroscopy. The gel based on β-CD-chitosan and Fc-cellulose was formed under mild conditions which can engender autonomous healing between cut surfaces after 24 hours: the gel cannot self-heal while the cut surfaces were coated with a solution of a competitive guest (adamantane acid). …”
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  2. 82

    Preparation of Ginsenoside Rg3 and Protection against H2O2-Induced Oxidative Stress in Human Neuroblastoma SK-N-SH Cells by Gang Li, Xiao-xiao Zhang, Lin Lin, Xiao-ning Liu, Cheng-jun Ma, Ji Li, Chi-bo Wang

    Published 2014-01-01
    “…The aim of this study is to evaluate the protection of ginsenoside Rg3 against oxidative stress in human neuroblastoma SK-N-SH cells. 20(R)-ginsenoside Rg3 (20(R)-Rg3) and 20(S)-ginsenoside Rg3 (20(S)-Rg3) were prepared by the method of chemical degradation and column chromatography, and the structure of the two compounds was characterized by 1H-NMR and 13C-NMR spectroscopy. MTT assay and LDH leakage assay were used to determine the cell viability and the oxidative stress cellular model was established by means of H2O2 (600 μM for 4 h). …”
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  3. 83

    Spectroscopic, DFT, anti-bacterial, and in-silico investigations of novel semicarbazone and thiosemicarbazone synthesised from asymmetrical chalcones by Nikita Sharma, Har Lal Singh

    Published 2025-04-01
    “…After that the synthesis compounds were investigated using elemental analysis, melting point, UV, IR, 1H-, 13C-NMR spectroscopy and mass spectrometry. Later, computational tools were utilised for evaluating pharmacological attributes such as bioavailability score, Lipinski rule, absorption, distribution, metabolism, excretion and toxicity. …”
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    Article
  4. 84

    Fully Biobased Aliphatic Anionic Oligoesters: Synthesis and Properties by Yosra Hadj Kacem, Abdelkader Bougarech, Souhir Abid, Majdi Abid, Etienne Fleury

    Published 2019-01-01
    “…Structural characterization of the resulting oligoesters was determined by 1H NMR spectroscopy and MALDI-TOF MS technique. Showing a regular structure, the nature of the different expected species present in the macromolecular structure allowed the detection of etherification and cyclisation side reactions. …”
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  5. 85

    Improved Reactivity of Fly Ash-Slag Geopolymer by the Addition of Silica Fume by N. K. Lee, G. H. An, K. T. Koh, G. S. Ryu

    Published 2016-01-01
    “…The silicate structure was also analyzed by nuclear magnetic resonance (NMR) spectroscopy. From these results, it was found that the replacement of fly ash with the silica fume led to a significant decrease in the Q4(1Al) and an increase in the Q4(2Al), Q4(3Al), and Q4(4Al). …”
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  6. 86

    Structural Characterization of Functional Ingredient Levan Synthesized by Bacillus siamensis Isolated from Traditional Fermented Food in Thailand by Nattapong Thakham, Supphasin Thaweesak, Nuttinee Teerakulkittipong, Natthiwut Traiosot, Autaipohn Kaikaew, Gary Antonio Lirio, Witawat Jangiam

    Published 2020-01-01
    “…Structural characterization of levan via Fourier-transform infrared spectroscopy (FTIR) and 1H and 13C nuclear magnetic resonance (NMR) spectroscopy showed β-(2,6)-fructofuranose linkages. …”
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  7. 87

    Exploring the Effect of Mechanical Damage on the Water State in Blueberries Using Low-Field Nuclear Magnetic Resonance Spectroscopy by LUO Zixuan, JIANG Fengli, WU Peijing, SONG Ping, DING Keke

    Published 2025-02-01
    “…In this study, a custom apparatus was utilized to obtain blueberry samples with high and low levels of mechanical injury (DI and DII group), which were subsequently stored at 4 or 25 ℃ and analyzed using low-field nuclear magnetic resonance (LF-NMR) spectroscopy. Spectroscopic data and proton density images were collected at 0, 6, and 24 h post-damage. …”
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  8. 88

    An investigation of the potential of rhodamine B hydrazide as a fluorescent probe for enhancing latent fingerprints by Nadeem Muhammad, Amjad Ali, Hairong Cui, Abdullatif Bin Muhsinah, Muhammad Abdul Qadir, Ghulam Mustafa Kamal, Jalal Uddin, Shoaib Munir

    Published 2025-01-01
    “…The resulting hydrazones were purified and characterized through techniques including melting point determination, UV–Vis spectroscopy (λmax ranging from 245 to 555 nm), infrared (IR) spectroscopy, and proton nuclear magnetic resonance (NMR) spectroscopy. The derivatives exhibited strong fluorescence with enhancements up to 90 % at optimized wavelengths, facilitating their use in latent fingerprint visualization. …”
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  9. 89

    Cu(II) and Ni(II) Complexes with New Tridentate NNS Thiosemicarbazones: Synthesis, Characterisation, DNA Interaction, and Antibacterial Activity by Dorian Polo-Cerón

    Published 2019-01-01
    “…The ligands and their metal complexes were characterised by different physicochemical techniques, including elemental and thermogravimetric analysis; UV-Vis, IR, 1H-NMR, and 13C-NMR spectroscopy; molar conductance measurements; and mass spectrometry. …”
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  10. 90

    Anion-Directed Assembly of a Bimetallic Pd/Ag Nanocluster: Synthesis, Characterization, and HER Activity by Yu-Rong Ni, Rugma Thekke Pangal, Michael N. Pillay, Tzu-Hao Chiu, Samia Kahlal, Jean-Yves Saillard, C. W. Liu

    Published 2025-01-01
    “…The distinctive hydride environment was characterized by NMR spectroscopy, and the total structure was determined by single-crystal X-ray diffraction (SCXRD) and supported by computational studies. …”
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  11. 91
  12. 92

    Liver Metabolic Alterations and Changes in Host Intercompartmental Metabolic Correlation during Progression of Malaria by Arjun Sengupta, Angika Basant, Soumita Ghosh, Shobhona Sharma, Haripalsingh M. Sonawat

    Published 2011-01-01
    “…Liver metabolism was followed by NMR spectroscopy through the course of the disease in both male and female mice. …”
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  13. 93

    Antibacterial, Cytotoxic Studies and Characterization of Some Newly Synthesized Symmetrical N3,N3′-Bis(disubstituted)isophthalyl-bis(thioureas) and Their Cu(II) and Ni(II) Complexe... by Muhammad Jamil, Muhammad Zubair, Muhammad Asim Farid, Umer Rashid, Nasir Rasool, Saiful Islam

    Published 2013-01-01
    “…These compounds (L1–L5) and their metal(II) complexes (C1–C10) have been characterized by elemental analysis, infrared spectroscopy, 1H NMR and 13C NMR spectroscopy, magnetic moments, and electronic spectral measurements. …”
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  14. 94

    MetaboLabPy—An Open-Source Software Package for Metabolomics NMR Data Processing and Metabolic Tracer Data Analysis by Christian Ludwig

    Published 2025-01-01
    “…<b>Introduction:</b> NMR spectroscopy is a powerful technique for studying metabolism, either in metabolomics settings or through tracing with stable isotope-enriched metabolic precursors. …”
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  15. 95

    Semisynthesis of Derivatives of Oleanolic Acid from Syzygium aromaticum and Their Antinociceptive and Anti-Inflammatory Properties by Sibusiso Rali, Opeoluwa O. Oyedeji, Olukayode O. Aremu, Adebola O. Oyedeji, Benedicta N. Nkeh-Chungag

    Published 2016-01-01
    “…The derived compounds were monitored with thin layer chromatography and confirmed with nuclear magnetic resonance (NMR) spectroscopy, mass spectrometry (MS), Fourier infrared (FT-IR) spectroscopy, and melting point (Mp). …”
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  16. 96

    Lipidomics of Huntington’s Disease: A Comprehensive Review of Current Status and Future Directions by Ali Yilmaz, Sumeyya Akyol, Nadia Ashrafi, Nazia Saiyed, Onur Turkoglu, Stewart F. Graham

    Published 2025-01-01
    “…Recent breakthroughs in analytical techniques, particularly mass spectrometry and NMR spectroscopy, have revolutionized brain lipidomics research, enabling researchers to gain deeper insights into the complex lipidome of the brain. …”
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  17. 97
  18. 98

    Synthesis, Characterization, and Biological Activity of N′-[(Z)-(3-Methyl-5-oxo-1-phenyl-1,5-dihydro-4H-pyrazol-4-ylidene)(phenyl)methyl]benzohydrazide and Its Co(II), Ni(II), and... by Jonnie N. Asegbeloyin, Oguejiofo T. Ujam, Emmanuel C. Okafor, Ilknur Babahan, Esin Poyrazoglu Coban, Ali Özmen, Halil Biyik

    Published 2014-01-01
    “…Reaction of 1-phenyl-3-methyl-4-benzoyl-pyrazol-5-one and benzoyl hydrazide in refluxing ethanol gave N′-[(Z)-(3-methyl-5-oxo-1-phenyl-1,5-dihydro-4H-pyrazol-4-ylidene)(phenyl)methyl]benzohydrazide (HL1), which was characterized by NMR spectroscopy and single-crystal X-ray structure study. …”
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  19. 99

    NMR probing of copper–amyloid β1–16 interactions and self-assembly by Punnepalli Sunanda, Srinivasarao Raghothama, Uma Maheswari Devi Palempalli, Bankala Krishnarjuna

    Published 2024-12-01
    “…In this study, we investigated copper ion–Aβ1–16 interactions using nuclear magnetic resonance (NMR) spectroscopy, circular dichroism, and transmission electron microscopy. …”
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  20. 100

    Synthesis, Spectroscopic, and Biological Studies on New Zirconium(IV) Porphyrins with Axial Ligand by Gauri D. Bajju, Gita Devi, Sapna Katoch, Madhulika Bhagat, Deepmala, Ashu, Sujata Kundan, Sunil Kumar Anand

    Published 2013-01-01
    “…A detailed analysis of ultraviolet-visible (UV-vis), proton nulcear magnetic resonance (1H NMR) spectroscopy, infrared (IR) spectroscopy, and elemental analysis suggested the transformation from free base porphyrins to zirconium(IV) porphyrins. …”
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