Showing 121 - 140 results of 340 for search '"Nuclear magnetic resonance"', query time: 0.05s Refine Results
  1. 121

    A Novel Paramagnetic Substrate for Detecting Myeloperoxidase Activity in Vivo by Mohammed S. Shazeeb, Yang Xie, Suresh Gupta, Alexei A. Bogdanov

    Published 2012-09-01
    “…Characterization of the resulting probe (bis-HTrp-DTPA(Gd)) in vitro using nuclear magnetic resonance spectroscopy and enzyme kinetic analysis showed that bis-HTrp-DTPA(Gd) (1) improves solubility in water; (2) acts as a substrate for both horseradish peroxidase and MPO enzymes; (3) induces cross-linking of proteins in the presence of MPO; (4) produces oxidation products, which bind to plasma proteins; and (5) unlike bis-5HT-DTPA(Gd), does not follow first-order reaction kinetics. …”
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  2. 122

    Influence of Polyphosphoric Acid on the Consistency and Composition of Formulated Bitumen: Standard Characterization and NMR Insights by Catarina Varanda, Inês Portugal, Jorge Ribeiro, Artur M. S. Silva, Carlos M. Silva

    Published 2016-01-01
    “…Afterwards, the five components and the unmodified and PPA-modified bitumen were characterized by standard methods (penetration, softening point, and penetration index), SARA analysis, elemental analysis, and 31P and 1H nuclear magnetic resonance (NMR) spectroscopy. The results evidenced higher asphaltenes and lower saturates/resins contents in PPA-modified bitumen. …”
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  3. 123

    Genesis Analysis of High-Gamma Ray Sandstone Reservoir and Its Log Evaluation Techniques: A Case Study from the Junggar Basin, Northwest China by Liang Wang, Zhiqiang Mao, Zhongchun Sun, Xingping Luo, Yong Song, Zhen Liu

    Published 2013-01-01
    “…Affected by formation’s high water sensitivity and poor borehole quality, the conventional logs can not recognize reservoir and evaluate the physical property of reservoirs. Then, the nuclear magnetic resonance (NMR) logs is proposed and proved to be useful in reservoir recognition and physical property evaluation.…”
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  4. 124

    Effects of Different Blanching Methods and Freezing Rates on Textural Properties of Prepared Broccoli by ZHAO Yinuo, JIN Xin, BI Jinfeng, XIE Yitong, DU Ting

    Published 2025-01-01
    “…This study was conducted to investigate the effects of blanching methods and freezing rates on the textural properties of processed broccoli. Low-field nuclear magnetic resonance (LF-NMR) spectroscopy and physicochemical analysis were used to evaluate the water distribution, water-holding capacity (WHC), electrical conductivity, and hardness of broccoli samples subjected to hot water or steam blanching followed by freezing at −20, −40, and −80 ℃. …”
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  5. 125

    Physicochemical Characterization of Thermally Treated Chitosans and Chitosans Obtained by Alkaline Deacetylation by Ana Maria de Oliveira, Telma Teixeira Franco, Enio Nazaré de Oliveira Junior

    Published 2014-01-01
    “…The thermal depolymerization of chitosan and alkaline deacetylation of chitin were characterized by measurement of viscosity, gel permeation chromatography (GPC), potentiometric titration (PT), and proton nuclear magnetic resonance spectroscopy (H1 NMR). The depolymerization rates (DR) measured by kinematic viscosity (KV), apparent viscosity (AV), and GPC (Mw) until 4 h of treatment were DRKV=21.9, DRAV=25.5, and DRMw=23.3% h-1 and for 5 to 10 h of treatment they decreased slowly to produce of DRKV=0.545, DRAV=0.248, and DRMw=1.11% h-1. …”
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  6. 126

    Should miliary tuberculosis be considered as a possible cause of infertility in the new era: a case report and literature review by Aleksandra Cvetkovic, Ana Blanka Protic, Jelena Jovanovic, Tatjana Adzic Vukicevic, Tatjana Adzic Vukicevic

    Published 2025-01-01
    “…Because of the appearance of headaches, brain nuclear magnetic resonance (NMR) was done, and diffuse nodular brain lesions were found, which were initially interpreted as metastatic cancer disease. …”
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  7. 127

    Physical Simulation of Colayer Water Flooding in Low Permeability Carbonate Reservoir in Middle East by Xingwang Shi, Zhengming Yang, Yapu Zhang, Guangya Zhu, Qianhua Xiao

    Published 2017-01-01
    “…In addition, by using low magnetic field nuclear magnetic resonance, the development effect of microscopic pore structure under the different injection-production models was analyzed. …”
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  8. 128

    The Molecular Mechanism of FABP4 Inhibition Effects of GAS and 4-HBA in Gastrodia elata Blume Was Discussed Based on NMR and Molecular Docking by Yuyu Yang, Shihan Liu, Wenfang Jin, Zengyi Qu, Baolei Fan

    Published 2024-01-01
    “…Their structures were identified by HPLC and nuclear magnetic resonance (NMR). The FABP4 protein was added to GAS and 4-HBA, and the NMR experiment was performed to observe ligand binding. …”
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  9. 129

    Characterization of Phenolic Constituents from Prunus cerasifera Ldb Leaves by Wei Liu, Muhammad Farrukh Nisar, Chunpeng Wan

    Published 2020-01-01
    “…The isolated compounds were analyzed by 1H-nuclear magnetic resonance (1H-NMR), 13C-NMR, and electrospray ionization mass spectral (ESI-MS) spectroscopy. …”
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  10. 130

    Damage Strengthening Constitutive Model of Cemented Paste Backfill by Kangli Cheng, Bingbing Tu, Lang Liu, Bo Zhang, Huafu Qiu

    Published 2021-01-01
    “…In order to consider the influence of mesoscopic characteristics of materials on the constitutive model of cemented paste backfill (CPB), the uniaxial compression variables and the damage constitutive model, considering the influence of porosity and pore size of filling materials, were derived based on the strain equivalence principle and Weibull probability distribution function. The nuclear magnetic resonance (NMR) tests and unconfined compression strength (UCS) tests were carried out on 8 groups of CPB specimens with different slurry concentrations and cement-tailings ratios. …”
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  11. 131

    Glycerol Enhances the Antifungal Activity of Dairy Propionibacteria by Helena Lind, Anders Broberg, Karin Jacobsson, Hans Jonsson, Johan Schnürer

    Published 2010-01-01
    “…The conversion of 13C glycerol by Propionibacterium jensenii was followed with nuclear magnetic resonance. In a dual culture assay, the degree of inhibition of the molds was strongly enhanced by an increase in glycerol concentrations, while the yeast was less affected. …”
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  12. 132

    Keggin-Type Heteropolyacid for Ring-Opening Polymerization of Cyclohexene Oxide: Molecular Weight Control by Ahmed Aouissi, Zeid Abdullah Al-Othman, Abdurrahman Salhabi

    Published 2015-01-01
    “…The resulting poly(1,2-cyclohexene oxide) (PCHO) was characterized by Fourier transform infrared (FTIR), nuclear magnetic resonance spectroscopy (1HNMR), gel-permeation chromatography (GPC), and differential scanning calorimetry (DSC). …”
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  13. 133

    Advances in Spectroscopic Methods for Predicting Cheddar Cheese Maturity: A Review of FT-IR, NIR, and NMR Techniques by Sanja Seratlic, Bikash Guha, Sean Moore

    Published 2024-10-01
    “…Given the complexity of cheese ripening and the industry’s need for fast and reliable evaluation methods, this review addresses the challenge by scrutinising the application of spectroscopic techniques such as Fourier transform infrared (FT-IR), near-infrared (NIR), and nuclear magnetic resonance (NMR). These methods are evaluated for their noninvasive and rapid on-site analysis capabilities, which are essential for ensuring quality in cheese production. …”
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  14. 134

    Introduction to the New Copolymer of Chloroprene and Acrylonitrile with Differentiated Properties by Mousumi De Sarkar, Wataru Nishino, Yuhei Ishigaki, Takashi Sunada

    Published 2021-01-01
    “…Qualitative analyses through infrared (FTIR) and nuclear magnetic resonance (1H-NMR) spectra confirm the presence of both the -Cl and -CN groups in the new rubber. …”
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  15. 135

    The hidden role of heterotrophic bacteria in early carbonate diagenesis by Mónica Sánchez-Román, Viswasanthi Chandra, Sebastian Mulder, Camila Areias, John Reijmer, Volker Vahrenkamp

    Published 2025-01-01
    “…Scanning Electron Microscopy (SEM) and X-ray Diffraction (XRD) confirmed the protodolomite formation, while solid-state nuclear magnetic resonance (NMR) revealed bacterial interactions with carboxylated organic matter, such as extracellular polymeric substances (EPS). …”
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  16. 136

    Leiomodin creates a leaky cap at the pointed end of actin-thin filaments. by Dmitri Tolkatchev, Garry E Smith, Lauren E Schultz, Mert Colpan, Gregory L Helms, John R Cort, Carol C Gregorio, Alla S Kostyukova

    Published 2020-09-01
    “…Leiomodin, a member of the tropomodulin family of proteins, is critical in thin filament assembly and maintenance; however, its role is under dispute. Using nuclear magnetic resonance data and molecular dynamics simulations, we generated the first atomic structural model of the binding interface between the tropomyosin-binding site of cardiac leiomodin and the N-terminus of striated muscle tropomyosin. …”
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  17. 137

    Glucomannan engineering highlights roles of galactosyl modification in fine-tuning cellulose-glucomannan interaction in Arabidopsis cell walls by Yoshihisa Yoshimi, Li Yu, Rosalie Cresswell, Xinyu Guo, Alberto Echevarría-Poza, Jan J. Lyczakowski, Ray Dupree, Toshihisa Kotake, Paul Dupree

    Published 2025-01-01
    “…Biochemical analysis and 13C solid-state nuclear magnetic resonance spectroscopy of Arabidopsis with cell wall glucomannan engineered by MAGTs reveal that the degree of galactosylation strongly affects the interaction with cellulose. …”
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  18. 138

    Logging Response Mechanism and Content Evaluation of Laumontite-Bearing Glutenite Reservoir: A Case Study of Lower Urho Formation of Permian of the Junggar Basin by Jia Jun, Xue Kunlin, Ni Liping, Luo Yang, Liu Yuchao

    Published 2024-01-01
    “…The presence of zeolite minerals in various states of occurrence and uneven distribution in glutenite reservoirs makes it indeterminate to interpret the well logging response characteristics such as acoustic, resistivity, radioactivity, and nuclear magnetic resonance (NMR). This poses significant challenges for the evaluation of well loggings in glutenite reservoirs containing laumontite and the determination of oil and gas reserves. …”
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  19. 139

    Electronic spin susceptibility in metallic strontium titanate by A. Najev, N. Somun, M. Spaić, I. Khayr, M. Greven, A. Klein, M. N. Gastiasoro, D. Pelc

    Published 2025-01-01
    “…Here we use 47,49Ti nuclear magnetic resonance (NMR) to perform a comprehensive study of the electronic spin susceptibility in the metallic state of strontium titanate across the doping-temperature phase diagram. …”
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  20. 140

    Analytical Methods Used for the Detection and Quantification of Benzodiazepines by Zidane Qriouet, Zineb Qmichou, Nadia Bouchoutrouch, Hassan Mahi, Yahia Cherrah, Hassan Sefrioui

    Published 2019-01-01
    “…The commonly used methods for the detection and quantification of BZDs include nuclear magnetic resonance (NMR), chromatography (GC-MS, HPLC, and TLC), immunoassay (ELISA, RIA, LFA, CEDEA, FPIA, and KIMS), and electroanalytical methods (voltammetry and potentiometry).…”
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