[PDF] Top 20 Intact NMR spectroscopy: slow high-resolution magic angle spinning chemical shift imaging
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Intact NMR spectroscopy: slow high-resolution magic angle spinning chemical shift imaging
... them, NMR spectroscopy has found tremendous success due to its simplicity and versatility of acquiring unbiased and rich metabolic information on diverse ...particular, High-Resolution ... Voir le document complet
20
De novo prediction of cross-effect efficiency for magic angle spinning dynamic nuclear polarization
... to spinning samples 1–3 and high magnetic field (> 5 T) combined with high-power, high-frequency microwaves 4,5 has provided large nuclear hyperpolarization along with high spectral ... Voir le document complet
24
Evaluation de deux nouveaux outils pour l'étude d'échantillons biologiques par spectroscopie de Résonance Magnétique Nucléaire: -La RMN HR-MAS (High-Resolution Magic Angle Spinning): une technique d'analyse d'échantillons bruts ; -La Métabonomique: une méthode d'analyse statistique des spectres pour la recherche de signatures métaboliques
... better resolution and some changes in the PDE region ...their chemical shift values, these signal correspond to glycerophosphorylethanolamine (GPE) and glycerophosphorylcholine ...The ... Voir le document complet
183
Aromatic spectral editing techniques for magic-angle-spinning solid-state NMR spectroscopy of uniformly 13C-labeled proteins
... isotropic shift dispersion, which makes the chemical shift filter ...C chemical shifts are reasonably well resolved, but the signal- averaging time for these 3D experiments is significantly ... Voir le document complet
19
Dynamic Nuclear Polarization Efficiency Increased by Very Fast Magic Angle Spinning
... particularly high interest, playing key roles in many functional inorganic or hybrid ...spectral resolution is limited by second-order quadrupolar shifts and broadenings, and resolution and ... Voir le document complet
5
14N magic angle spinning overtone NMR spectra
... and chemical shift anisotropy (CSA) can broaden the overtone powder patterns across ranges of several tens of kHz or ...the resolution and sensitivity, and when using single-pulse experiments the ... Voir le document complet
18
1H high resolution magic-angle coil spinning (HR-MACS) μNMR metabolic profiling of whole Saccharomyces cervisiae cells: a demonstrative study
... HR-MAS NMR is considered a near universal technique for providing unbiased and high-precision fingerprints of abundant metabolites in heterogenous ...of intact bacterial cell using multidimensional ... Voir le document complet
14
Two- and Three-Dimensional Multinuclear Stray-Field Imaging of Rotating Samples with Magic-Angle Spinning (STRAFI-MAS): From Bio to Inorganic Materials
... called magic-angle sample spinning (MAS) (6,7), and is now a routine experiment in NMR spectroscopy for solid ...MAS imaging have been pro- posed by Wind and Yannoni ...MAS ... Voir le document complet
7
High-resolution Magic-angle Spinning (HR-MAS) NMR Spectroscopy
... the spinning frequency, and r is the radial distance between the rotation axis and the ...the spinning frequency and sample ...activities. Slow MAS reduces the effect of both the centrifugal force ... Voir le document complet
19
Achieving high resolution and optimizing sensitivity in spatial frequency encoding NMR spectroscopy: from theory to practice
... Optimizing spatial resolution and sensitivity The spatial resolution issue raised above can be solved in different ways. A first approach is to increase the duration of the shaped pulse to act locally on ... Voir le document complet
16
Achieving high resolution and optimizing sensitivity in spatial frequency encoding NMR spectroscopy: from theory to practice
... and H B and of artifacts (Fig. 12b and c). More recently, Zangger et al. introduced a method for acquiring real time pure shift 1 H spectra. 3 In this approach, the Zangger–Sterk element is implemented in a ... Voir le document complet
16
High Resolution Spectroscopy of 16N_Lambda by Electroproduction
... 1/2 ground state and the 6.176-MeV p −1 3/2 states of 15 O. In the simple particle-hole limit, the degenerate multiplets contain 2, 2, 4, and 6 states, respectively, and the cross sections would be in the ratio 2:1 for ... Voir le document complet
5
Studying intact bacterial peptidoglycan by proton-detected NMR spectroscopy at 100 kHz MAS frequency
... of intact peptidoglycan has lower intrinsic sensitivity than its 1 H- 13 C counterpart, rendering triple-resonance experiments 235 for assignments ...to chemical exchange of amide hydrogens with the ... Voir le document complet
36
High-resolution satellite imaging
... L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignemen[r] ... Voir le document complet
3
59Co second-order quadrupolar effects in the 13C cross-polarization magic angle spinning NMR spectra of the cobaltocenium salts [Co2*Co]+[PF6]- and [Cp*CpCo]+[PF6]-
... The chemical shift anisotropy depends on the orientation of the molecule within the ...the spinning sidebands depend on the chemical shift anisotropy and the spinning ...better ... Voir le document complet
7
Critical-angle transmission grating spectrometer for high-resolution soft x-ray spectroscopy on the International X-ray Observatory
... grazing angle (1 ...this angle is below the critical angle of total external reflection, leading to effective blazing at angles around twice the graze angle relative to the incident x ...provide ... Voir le document complet
12
High-resolution infrared spectroscopy with synchrotron sources
... of high-resolution gas-phase spectroscopy? Clearly the promise of a bright, high-power THz continuum source is ...for high-resolution spectroscopy in the THz ...of ... Voir le document complet
11
High-Resolution Two-Field Nuclear Magnetic Resonance Spectroscopy
... The linearity of these amplifiers is enhanced by correction tables for the amplitudes (but not for the phases) similar to standard practice for high-frequency amplifiers. These correction tables provide excellent ... Voir le document complet
9
Study of the diffusion in polymer solutions and hydrogels by NMR spectroscopy and NMR imaging
... 42 becomes significant at a low loading (9.9 wt %). 11 In the case of poly(ethylene oxide) (PEO) tablets, the drug dissolution and diffusion through the swollen gel layer controlled the release at a loading levels of ... Voir le document complet
92
Monitoring Conformational Changes in an Enzyme Conversion Inhibitor Using Pure Shift Exchange NMR Spectroscopy
... pure shift EXSY experiment is its lower sensitivity compared to standard pulse sequences, hence the longer experimental time that is needed to collect all the ...pure shift EXSY spectra were recorded in 14 ... Voir le document complet
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