Effective combined water and sideband suppression for low-speed tissue and in vivo MAS NMR
Sign Up to like & getrecommendations! Published in 2017 at "Analytical and Bioanalytical Chemistry"
DOI: 10.1007/s00216-017-0450-3
Abstract: High-resolution magic angle spinning (HR-MAS) NMR is a powerful technique that can provide metabolic profiles and structural constraints on intact biological and environmental samples such as cells, tissues and living organisms. However, centripetal force from… read more here.
Keywords: vivo; water; mas nmr; water sideband ... See more keywords
DNP-Enhanced MAS NMR: A Tool to Snapshot Conformational Ensembles of α-Synuclein in Different States
Sign Up to like & getrecommendations! Published in 2018 at "Biophysical Journal"
DOI: 10.1016/j.bpj.2018.02.011
Abstract: Intrinsically disordered proteins dynamically sample a wide conformational space and therefore do not adopt a stable and defined three-dimensional conformation. The structural heterogeneity is related to their proper functioning in physiological processes. Knowledge of the… read more here.
Keywords: mas nmr; snapshot conformational; dnp enhanced; nmr tool ... See more keywords
On the stability of Li intercalated fine-grained graphitic material
Sign Up to like & getrecommendations! Published in 2021 at "Carbon"
DOI: 10.1016/j.carbon.2020.11.048
Abstract: Abstract In order to study the performance, cycling stability and safety of electrochemical storage devices, various characterisation methods are applied. Magic angle spinning (MAS) NMR enables ex situ studies of electrochemical reactions with high resolution.… read more here.
Keywords: grained graphitic; graphitic material; mas nmr; fine grained ... See more keywords
Differentiation of the solid-state NMR signals of gel, zeolite phases and water species in geopolymer-zeolite composites
Sign Up to like & getrecommendations! Published in 2017 at "Ceramics International"
DOI: 10.1016/j.ceramint.2016.11.004
Abstract: Abstract Geopolymer-zeolite composites were synthesized using a silica-rich industrial byproduct from chlorosilane production and sodium aluminate. Pastes were cured at 80 °C and 80% RH, and subsequently dried in two different climates: at 23 °C and 50%… read more here.
Keywords: geopolymer zeolite; water; mas nmr; zeolite composites ... See more keywords
High-resolution magic angle spinning nuclear magnetic resonance (HR-MAS NMR) as a tool in the determination of biomarkers of Passiflora-based herbal medicines.
Sign Up to like & getrecommendations! Published in 2020 at "Fitoterapia"
DOI: 10.1016/j.fitote.2020.104500
Abstract: High-resolution magic-angle spinning nuclear magnetic resonance spectroscopy (HR-MAS NMR) for the identification of the metabolic profile of plants under conditions very close to that in which the compounds are present in the matrix, the herbal… read more here.
Keywords: high resolution; mas nmr; herbal medicines; magic angle ... See more keywords
Solid-state MAS NMR at ultra low temperature of hydrated alanine doped with DNP radicals.
Sign Up to like & getrecommendations! Published in 2021 at "Journal of magnetic resonance"
DOI: 10.1016/j.jmr.2021.107090
Abstract: Magic angle spinning (MAS) nuclear magnetic resonance (NMR) experiments at ultra low temperature (ULT) (≪ 100 K) have demonstrated clear benefits for obtaining large signal sensitivity gain and probing spin dynamics phenomena at ULT. ULT NMR… read more here.
Keywords: solid state; temperature; ult; mas nmr ... See more keywords
Optimisation of excitation schemes for 14N overtone MAS NMR using numerically exact simulations.
Sign Up to like & getrecommendations! Published in 2017 at "Solid state nuclear magnetic resonance"
DOI: 10.1016/j.ssnmr.2016.12.006
Abstract: Numerically exact simulations of the 14N overtone (14NOT) MAS NMR experiment are used to investigate the effects of the applied magnetic field strength as well as three types of excitation pulse. The results show that… read more here.
Keywords: mas nmr; numerically exact; 14n overtone; exact simulations ... See more keywords
HR-μMAS NMR-Based Metabolomics: Localized Metabolic Profiling of a Garlic Clove with μg Tissues.
Sign Up to like & getrecommendations! Published in 2018 at "Analytical chemistry"
DOI: 10.1021/acs.analchem.8b04150
Abstract: The localization of metabolic profiles within a tissue sample is of particular interest when the sampling size is considerably small, i.e., in the order of a microgram (μg) scale. Small sampling size is inevitable when… read more here.
Keywords: localized metabolic; skin flesh; mas nmr; based metabolomics ... See more keywords
Polyurea Structure Characterization by HR-MAS NMR Spectroscopy
Sign Up to like & getrecommendations! Published in 2017 at "Industrial & Engineering Chemistry Research"
DOI: 10.1021/acs.iecr.7b00192
Abstract: Owing to the presence of abundant interchain interactions such as hydrogen bonds, polyureas (PU) are only swellable or soluble in a limited number of highly protonic solvents, and the viscosity of the solutions obtained is… read more here.
Keywords: mas nmr; chemical structure; spectroscopy; structure ... See more keywords
Surface-Only Spectroscopy for Diffusion-Limited Systems Using Ultra-Low-Temperature DNP MAS NMR at 16.4 T
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.0c04873
Abstract: Conventional dynamic-nuclear-polarization (DNP) technique at T ~100 K can enhance sensitivity of magic-angle spinning (MAS) NMR over 100-fold for standard samples containing urea/proline at high-fi... read more here.
Keywords: surface spectroscopy; mas nmr; spectroscopy diffusion; dnp ... See more keywords
Which Activation Energy Do We Measure? Analysis of the Kinetics of Propene-3-13C Double-Bond-Shift Reaction on Silicalite-1 by 1H MAS NMR In Situ
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.8b06044
Abstract: Correct assignment of the experimental activation energy of chemical reactions on solid catalysts to either apparent (Eapp) or intrinsic (Eint) activation barriers represents a long-standing problem in the kinetic measurements performed with the use of… read more here.
Keywords: activation energy; mas nmr; bond shift; reaction ... See more keywords