Showing 1 - 20 results of 22 for search '"nuclear magnetic resonance"', query time: 0.08s Refine Results
  1. 1

    Optical widefield nuclear magnetic resonance microscopy by Karl D. Briegel, Nick R. von Grafenstein, Julia C. Draeger, Peter Blümler, Robin D. Allert, Dominik B. Bucher

    Published 2025-02-01
    “…While cameras have significantly advanced optical, infrared, and electron microscopy, imaging nuclear magnetic resonance (NMR) signals on a camera has remained elusive. …”
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  2. 2

    Evaluating Sampling Uncertainty in the Quantitative 1H Nuclear Magnetic Resonance Analysis of Lignin by Shrikant Shivaji Pawade, Lauri Toom, Koit Herodes, Ivo Leito

    Published 2025-01-01
    “…In recent years, lignin analysis utilizing quantitative nuclear magnetic resonance (qNMR) has attracted considerable interest and has been the subject of numerous studies. …”
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    Dietary inulin supplementation improves meat quality and off-flavor of duck meat referring to regulated muscle fiber types and antioxidant capacity by Hailei Sun, Jia Wang, Jina Han, Xiaolong Li, Juan Zhao, Yimin Zhang, Jingxin Sun

    Published 2025-01-01
    “…Inulin increased the pH24h and the redness of duck meat. Low-field nuclear magnetic resonance confirmed that inulin increased the immobile water content and enhanced water retention in duck meat. …”
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  6. 6

    NEW SELENATO TRIPHENYLTIN (IV) AND TRIMETHYLTIN (IV) DERIVATIVES: SYNTHESIS, INFRARED AND NMR STUDIES by WALY DIALLO, LIBASSE DIOP

    Published 2017-06-01
    “… Five derivatives of general formulae [cation] [SeO4SnR3] (R = Ph, Me) have been studied by infrared (IR) and nuclear magnetic resonance (NMR) spectroscopy. The suggested structures are infinite chains or oligomers, the environment around the tin centre being trans trigonal bipyramidal, the phenyl and methyl substituants occupying equatorial positions, the selenate anion behaving as a bridging bidentate ligand and occupying the apical positions. …”
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  7. 7

    3-Methyl-4-Nitrobenzoate Derivates as Antifungal Drug Candidates: Biological and In Silico Evaluation by Alana R. Ferreira, Yunierkis P. Castillo, Ana C. M. Andrade, Diego F. Nóbrega, João Paulo G. de Oliveira, Tamires C. Lima, Ricardo D. de Castro, Damião P. de Sousa

    Published 2025-01-01
    “…The chemical structure of the obtained products was confirmed using Infrared, 1H and APT-13C nuclear magnetic resonance spectroscopy and high-resolution mass spectrometry. …”
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  8. 8

    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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  9. 9

    Conductive supramolecular acrylate hydrogels enabled by quaternized chitosan ionic crosslinking for high-fidelity 3D printing by Lukas A. Bauman, Boxin Zhao

    Published 2025-03-01
    “…This yielded high-fidelity 3D-printed conductive supramolecular hydrogels with tensile properties of 288±29 kPa at 516±37 % elongation and compressive properties of 572±34 kPa at 65±4 % strain with uniform swelling (320–350 %). Nuclear magnetic resonance and conductivity measurements confirmed SPA-rich blocks within the hydrogel network and the solvent-dependent copolymer structure. …”
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  10. 10

    SYNTHESIS, CHARACTERIZATION AND ANTIMICROBIAL ACTIVITY OF RUTHENIUM NITROSYL COMPLEXES CONTAINING POLYPYRIDYL LIGANDS by Dayana P. S. Penha, Thuanny M. de Sousa, Dayane C. de Oliveira, Maria R. H. da Silva, Verônica da S. Oliveira, Daniel de L. Pontes, Ana C. F. de B. Pontes, Tércio de F. Paulo, Francisco O. N. da Silva

    Published 2025-02-01
    “…The ruthenium(II) complexes cis-[Ru(bpy)(phen)(ImN)(NO)](PF6)3 (I) and cis-[Ru(bpy)(phen)(SO3)(NO)](PF6) (II) (bpy = 2,2’-bipyridine, phen = 1,10’-phenanthroline and ImN = imidazole) were synthesized and characterized using UV-visible, infrared and NMR (nuclear magnetic resonance) spectroscopies and electrochemical techniques. …”
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  11. 11

    Antimicrobial and antiproliferative activity of biosynthesized manganese nanocomposite with amide derivative originated by endophytic Aspergillus terreus by Nashwa El-Gazzar, Reem Farouk, Nervana S. Diab, Gamal Rabie, Basel Sitohy

    Published 2025-02-01
    “…In addition, the most potent product was identified based on instrumental analysis through Nuclear magnetic resonance (NMR), Fourier-transform infrared (FTIR), and Gas chromatography-mass spectrometry (GC.MS). …”
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  12. 12

    SSNMR confirms silicate ion substitution in the apatitic structure of 0.8wt% Si hydroxyapatite by Marc-Krystelle Mafina, Rory M. Wilson, Gregory J. Rees, Peter Gierth, Alice C. Sullivan, Karin A. Hing

    Published 2023-11-01
    “…Solid-state nuclear magnetic resonance (SSNMR) spectroscopy was carried out to view the elemental interactions using phosphorus (31P) and silicon (29Si) probes to confirm or refute the presence of silicate groups in relation to phosphate groups in the bulk material structure. …”
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  13. 13

    Effect of pore throats on the reservoir quality of tight sandstone: A case study of the Yanchang Formation in the Zhidan area, Ordos Basin by Wei Fanrong, Yan Xinzhi, Bai Yubin, Bai Yanjun, Zhou Kai

    Published 2025-02-01
    “…Taking the main tight oil production province of the Ordos Basin in China as a case study, nuclear magnetic resonance (NMR), pressure-controlled mercury injection (PMI), scanning electron microscopy, and micro-computed tomography (μCT) are used to analyze the characteristics of four types of tight sandstones with different pore throats. …”
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  14. 14

    Mechanistic studies on the effect of endogenous proteins on the starch retrogradation characteristics of corn before and after postharvest ripening by Nannan Hu, Weihua Qi, Jinying Zhu, Fuyin Zhao, Lin Xiu, Mingzhu Zheng, Jingsheng Liu

    Published 2025-01-01
    “…In addition, low field strength nuclear magnetic resonance (LF-NMR) analyses also revealed that proteins inhibited starch retrogradation by isolating the precipitation of free water during retrogradation, causing the decrease in the viscoelasticity and firmness of the starch gel. …”
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  15. 15

    Investigation of 4-Nitro-N, N-diphenylaniline as a chemical tracer under high pressure high temperature reservoir conditions for enhanced oil recovery applications by Subhadip Maiti, Nishant Kumar Choudhary, Kiran R. Gore, Sandeep D. Kulkarni

    Published 2025-02-01
    “…The purity of the synthesised N-TPA was first confirmed to be greater than 98% based on nuclear magnetic resonance (NMR) analysis. Ultraviolet (UV) and high-performance liquid chromatography (HPLC) techniques were established to measure the ppm-level concentrations of 4-FBA and N-TPA in the standard brine solutions. …”
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  16. 16

    Asparagus officinalis polysaccharide-loaded liposomal gels alleviate skin inflammation via inhibiting the NF-κB/MAPK pathways by Rongrui Zhang, Yu Xiong, Yujin Ma, Yafei Ma, Nuo Li, Yan Ren, Lili He, Lu Han, Jun Ni, Zhi-xiang Yuan

    Published 2025-02-01
    “…WAPS, a pectin polysaccharide, was identified to coexist with α-glycosidic and β-glycosidic linkages glucan and probably has triple-helix confirmation suggested by Fourier-transform infrared and nuclear magnetic resonance spectroscopy. Cellular experiments indicated that WAPS attenuated the expression of inflammatory cytokines and enhanced macrophage viability. …”
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  17. 17

    How does the ultrasonic assist CO2 immiscible flooding? by Hengli Wang, Leng Tian, Yanzhong Zhen, Yating Li, Yi Gao, Gaorun Zhong, Kaiqiang Zhang

    Published 2025-03-01
    “…First, the distribution characteristics of residual oil in CO2 immiscible flooding were examined using high pressure mercury injection (HPMI), nuclear magnetic resonance (NMR), and microscopic visualization displacement (MVD) experiments. …”
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  18. 18

    MUC5B modulation of early oral biofilm glucose metabolism by Carolina Robertsson, Carolina Robertsson, Julia Davies, Gunnel Svensäter, Anders Bay Nord, Niclas Norrström, Claes Wickström

    Published 2025-02-01
    “…IntroductionSalivary mucin MUC5B has been suggested to support eubiosis in early oral biofilms by regulating the attachment of commensals, while downregulating dysbiotic activities related to dental caries development, such as microbial carbohydrate transport and metabolism.MethodsTo investigate how the metabolism of glucose, a potential driver for dental caries, in early mono- and dual-species biofilms of oral Actinomyces naeslundii and Streptococcus gordonii clinical isolates was affected by the presence of the complex salivary mucin MUC5B, this study employed nuclear magnetic resonance (NMR)-based metabolomics with the interpretation of network integration.Results and discussionMUC5B reduced early attachment in the presence of glucose compared with uncoated surfaces but maintained even species distribution. …”
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  19. 19

    Combined multi-scale characterization of pores in ultra-thick coal seams of Jurassic Xishanyao Formation, Tiaohu-Malang sags, Santanghu Basin by Yue CHEN, Qiqi LEI, Dongmin MA, Xin WANG, Xinggang WANG, Diefang HUANG, Gaoxiang RONG

    Published 2025-01-01
    “…Techniques such as high-pressure mercury intrusion porosimetry, low-temperature liquid nitrogen adsorption, nuclear magnetic resonance (NMR), CT scanning, scanning electron microscopy (SEM), and the pore-crack analysis system (PCAS) were used to investigate pore development characteristics. …”
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  20. 20

    Machine learning-based plasma metabolomics for improved cirrhosis risk stratification by Jingru Song, Ziwei Gao, Liqun Lai, Jie Zhang, Binbin Liu, Yi Sang, Siqi Chen, Jiachen Qi, Yujun Zhang, Huang Kai, Wei Ye

    Published 2025-02-01
    “…Methods This study used proton nuclear magnetic resonance (1 H-NMR) serum metabolomics data from the UK Biobank (UKB) and employed elastic net-regularized Cox proportional hazards models to explore the role of metabolomics in cirrhosis risk stratification in patients with CLD. …”
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