Advanced Interpretation of Field Cycling NMR Relaxometry Dispersion Profiles From Hard and Soft Materials [0.03%]
硬质和软质材料的场回扫核磁共振弛豫分散谱的先进解释法研究
David A Faux,Rémi Kogon
David A Faux
A fast field-cycling NMR (FFC NMR) experiment measures the longitudinal (spin-lattice) relaxation rate as a function of applied magnetic field to yield a relaxation rate dispersion curve, R 1 f , $$ {R}_1(f), $$ where f $$ f $$ is the ...
Hydrogen Bonding Network in Interlayer Spaces of a Partially Deuterated Layered α-Sn (IV) Phosphate: A Solid-State MAS NMR Study [0.03%]
固体状态MAS核磁共振研究层状α-锡（IV）偏氘代磷酸盐中间层空间的氢键网络
Vladimir I Bakhmutov,Hong-Cai Zhou
Vladimir I Bakhmutov
Samples of a layered α-Sn (IV) phosphate were partially deuterated by soaking with D2O to yield a mixture of two isotopomers Sn (HPO4) (DPO4).c-H2O and Sn (DPO4)2.c-H2O containing cavity water c-H2O. They were characterized by the 1H, 2H, ...
From Power-Law to Correlation-Time Distributions: A Unified Framework for the Analysis of Nuclear Magnetic Relaxation Dispersion (NMRD) Profiles of Complex Biological Systems [0.03%]
从幂律到相关时间分布：复杂生物系统核磁弛豫分散(NMRD)谱分析的统一框架
Giacomo Parigi,Adam Kubrak
Giacomo Parigi
A recurring and significant finding across diverse biological and macromolecular systems is that the frequency dependence of the spin-lattice relaxation rate often cannot be well fitted with a single correlation time but rather follows a po...
Microencapsulated Alkane Wax Melting: Measured by [Formula: see text] H NMR Relaxometry and Diffusometry [0.03%]
微囊烷烃蜡熔化过程的[Formula: see text]H核磁共振弛豫和扩散研究
Matthew C Young,Madison L Nelson,Matthew E Skuntz et al.
Matthew C Young et al.
Phase change materials (PCMs) are useful for energy storage. Large latent heats make n-alkane waxes effective PCMs. Octadecane and eicosane were studied as both unencapsulated and microencapsulated with NMR relaxometry and diffusometry thro...
Kavita Dorai,N Suryaprakash
Kavita Dorai
Xiu-Rong Zhou,Yan-Wen Wu,Jun-Yi Wu et al.
Xiu-Rong Zhou et al.
Two compounds, including one new alkaloid, namely, aspergilloid A (1), together with one known compound (2), were isolated from the sponge-derived fungus Aspergillus sp. MF01. The structure of one undescribed compound was elucidated by NMR,...
Advances in EPR Approaches for Studying Structural Properties of Membrane Proteins [0.03%]
用于研究膜蛋白结构特性的EPR方法进展
Indra D Sahu,Gary A Lorigan
Indra D Sahu
Electron paramagnetic resonance (EPR) in connection with site-directed spin labeling is a structural biology tool that can be employed to obtain structural and conformational properties of various biological systems. Recent advances in meth...
Comparative 1H NMR Metabolomics Between Scandinavian Propolis and Australian Propolis: The Quest to Identify Radical Scavenging Compounds [0.03%]
斯堪的纳维亚和澳大利亚蜂胶的~(1)H NMR代谢组学比较：寻找具有清除自由基活性成分的研究
Jonas Vind,Søren Balling Engelsen,Henrik Munch Jørgensen et al.
Jonas Vind et al.
Propolis from Apis mellifera and cerumen from Tetragonula carbonaria are complex mixtures of beeswax, plant resins, and bee secretions whose composition varies with geography and species. Understanding these differences is important for exp...
L Trapp,N Weis,N Karschin et al.
L Trapp et al.
NMR and MRI provide a variety of customizable methods for process monitoring. A selection was applied to monitor structural and compositional changes in hazelnuts during thermal treatment, with particular focus on the roasting and aging beh...
Multi-Solvent Suppression Ultrafast 2D COSY for High-Throughput Wine Screening [0.03%]
多溶剂抑制超快二维COSY葡萄酒高通量筛选法
Pia S Mayer,Jérémy Marchand,Marine P M Letertre et al.
Pia S Mayer et al.
Nuclear magnetic resonance (NMR) is a powerful analytical tool for wine analysis to identify and quantify a metabolite composition. However, a limiting factor of 1D 1H NMR spectroscopy is the overlap of signals in complex mixtures. While co...