全部文献期刊会议图书|学者科研项目
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作者:Milyausha Shaikhullina , Aliya Khaliullina , Rustam Gimatdinov ...
来源:[J].Journal of Molecular Liquids(IF 1.684), 2020
摘要:Abstract(#br)We studied the transverse NMR relaxation of protons of different chemical groups and diffusion of molecules in an aqueous pluronic F-127 system. The system was studied at concentrations of 15, 21 and 28 wt% and in the temperature range of 293–333 K. The dynamic pe...
作者:Jingchong Yan , Zhiping Lei , Zhanku Li ...
来源:[J].Fuel(IF 3.357), 2020, Vol.268
摘要:... This work probes the molecular structures of eight coals of various metamorphic grades with combined spectral techniques of X-ray diffraction (XRD), solid state 13 C NMR and FTIR spectra. The structural parameters were correlated with the coalification indicator R o to invest...
作者:Elena Galitskaya , Alexei F. Privalov , Max Weigler ...
来源:[J].Journal of Membrane Science(IF 4.093), 2020, Vol.596
摘要:Abstract(#br)The diffusion coefficients in proton-exchange perfluorosulfonated membranes fabricated by different techniques have been analyzed in the temperature range from 200 K to 300 K using NMR diffusometry in a static magnetic gradient field. The influence of the water conte...
作者:Huifang Guo , Kai Cheng , Yan Gao ...
来源:[J].Bioorganic & Medicinal Chemistry(IF 2.903), 2020
摘要:... A solution NMR study of 15 N-labeled NDM-1 showed that A1 disturbed all three residues coordinating the second zinc ion (Zn2) in the active pocket of NDM-1. The perturbation only happened in the presence of zinc ion, indicating that A1 bound to Zn2. Based on the scaffold of...
作者:Timothy J. Keller , Alexander J. Laut , Jagadishwar Sirigiri ...
来源:[J].Journal of Magnetic Resonance(IF 2.3), 2020
摘要:Abstract(#br)Dynamic nuclear polarization (DNP) has gained large interest due to its ability to increase signal intensities in nuclear magnetic resonance (NMR) experiments by several orders of magnitude. Currently, DNP is typically used to enhance high-field, solid-state NMR expe...
作者:Lin Jiang , Kevin Howlett , Kristen Patterson ...
来源:[J].Analytical Biochemistry(IF 2.582), 2020
摘要:Abstract(#br)NMR is one of the most important platforms for metabolomic studies. Though 2D NMR has been applied in metabolomics, most applications have mainly focused on metabolite identification whilst limitations causing a bottle-neck for applying high-throughput 2D NMR data fo...
作者:Verônica V. Carvalho , Géssica A. Vasconcelos , Lilian V. Tose ...
来源:[J].Fuel(IF 3.357), 2017, Vol.210, pp.514-526
摘要:... Here, we show the deep characterization of three set of asphaltenes fractions obtained in NMP using Fourier transform ion cyclotron resonance mass spectrometry coupled to positive and negative-ions mode electrospray ionization (ESI(±)-FT-ICR MS), Fourier transform infrared spectroscopy (FTIR), molecular fluorescence and p roton nuclear magnetic resonance ( 1 H NMR...
作者:Qi Zhao , Yu Liu , Hui Ma ...
来源:[J].Analytica Chimica Acta(IF 4.387), 2020
摘要:... The pure shift NMR techniques provided only chemical shift information in one-dimension 1 H NMR spectra, without homonuclear J H-H coupling. In this work, we tested and compared three pure shift NMR techniques (including Zangger-Sterk, PSYCHE and TSE-PSYCHE methods) in the an...
作者:Kaori Numata , Atsushi Asano , Yasumoto Nakazawa
来源:[J].Polymer Degradation and Stability(IF 2.77), 2020, Vol.172
摘要:Abstract(#br)We have demonstrated that solid-state and time-domain Nuclear Magnetic Resonance spectroscopy (NMR) techniques are effective in monitoring the degradation site of poly (urea-urethane). We prepared two types of commercial poly (urea-urethane), Urethane-A and Ureth...
作者:Mary R. Starich , Jingrong Tang , Alan T. Remaley ...
来源:[J].Chemistry and Physics of Lipids(IF 2.147), 2020, Vol.228
摘要:... Proton ( 1 H) NMR spectroscopy methods to quantify lipoprotein particle subclasses have been advancing since NMR lineshape analysis of plasma samples was first proposed in the 1990’s. NMR methods, including a more recent DOSY-based diffusion spectroscopy test, provide the...

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