Results 41 to 50 of about 220,097 (316)

Stochastic models (cooperative and non-cooperative) for NMR analysis of the hetero-association of aromatic molecules in aqueous solution

, 2006
Stochastic cooperative (STOCH-C) and non-cooperative (STOCH-NC) models have been developed for NMR analysis of the hetero-association of aromatic compounds in solution, in order to take into account all physically meaningful association reactions of ...
Veselkov, A.N., Davies, David B., Evstigneev, M.P.   +2 more
core   +1 more source

Rapid structural analysis of minute quantities of organic solids by exhausting 1H polarization in solid-state NMR spectroscopy at fast MAS

, 2021
Solid-state nuclear magnetic resonance (NMR) is a powerful and indispensable tool for structural and dynamic studies of various challenging systems. Nevertheless, it often suffers from significant limitations due to the inherent low signal sensitivity ...
Zhiwei, Yan, Rongchun, Zhang
core   +1 more source

Proton Nuclear Magnetic Resonance-Spectroscopic Discrimination of Wines Reflects Genetic Homology of Several Different Grape (V. vinifera L.) Cultivars.

PLoS ONE, 2015
Background and aimsProton nuclear magnetic resonance spectroscopy coupled multivariate analysis (1H NMR-PCA/PLS-DA) is an important tool for the discrimination of wine products. Although 1H NMR has been shown to discriminate wines of different cultivars,
Boran Hu, Yaqing Yue, Yong Zhu, Wen Wen, Fengmin Zhang, Jim W Hardie   +5 more
doaj   +1 more source

A novel quinazolinone insulin receptor inhibitor and its synergy with an EGFR inhibitor in glucose‐driven glioblastoma

Molecular Oncology, EarlyView.
The novel styrylquinazolinone‐based molecule W1B effectively suppresses glioblastoma by inhibiting IGF1R and EGFR. In high‐glucose microenvironments driving tumor resistance, W1B acts synergistically with the EGFR inhibitor dacomitinib. This combination safely blocks compensatory survival signaling in zebrafish xenograft models. Showcasing promising in
Patryk Rurka, Wioleta Cieślik, Wojciech Płaziński, Katarzyna Stępnik, Anna Boguszewska‐Czubara, Elżbieta Kot, Robert Musioł, Mateusz Jasica, Anna Mrozek‐Wilczkiewicz, Katarzyna Malarz   +9 more
wiley   +1 more source

1H NMR metabolic profiling for the differentiation of fish species

, 2023
The determination of fish species is an important task for food control, especially in the case of very similar and processed fish or fish products. Typically, this analysis is carried out by DNA-based methods. However, especially for small sample series
René, Bachmann, Nele, Paasch, Anna Lena, Horns, Markus, Weidner, Melike, Saglam   +4 more
core   +1 more source

Unveiling the impact of second-order 1H-17O Quadrupolar-Dipolar interaction on solid-state NMR spectroscopy

Journal of Magnetic Resonance Open
Recent advances in the 17O-enrichment techiques and high-resolution nuclear magnetic resonance (NMR) methods have opened new opportunities to utilize 17O NMR to disentangle the zeolitic structure−property relationship that has not been well resolved ...
Yi Ji, Kuizhi Chen, Aijing Hao, Guangjin Hou   +3 more
doaj   +1 more source

2-(4-(2-Chloroacetamido)-1-methyl-1H-pyrrole-2-carboxamido)ethyl Acetate

Molbank, 2014
The title compound 2-(4-(2-chloroacetamido)-1-methyl-1H-pyrrole-2-carboxamido)ethyl acetate was synthesized. The structure of the compound was fully characterized by 1H-NMR, 13C-NMR and mass spectral analysis.
Naim H. Al-Said
doaj   +1 more source

Combination quantitative 1H NMR and chemometric approaches for the assessment of quality control in commercially available products of red fruit (Pandanus conoidues, Lam.) oil

Journal of Pharmaceutical and Biomedical Analysis Open, 2023
The assessment of fat acid parameters (acid value, saponification value, ester value, iodine value, composition of monounsaturated fatty acids, polyunsaturated fatty acids, and total unsaturated fatty acids) in edible oils, including red fruit oil ...
Liling Triyasmono, Ulrike Holzgrabe
doaj   +1 more source

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

FEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn, Barbara Seroka, Ryszard Lazny, Zenon Lotowski, Thore Rohwerder   +4 more
wiley   +1 more source

Defining genetic and chemical diversity in wheat grain by 1H-NMR spectroscopy of polar metabolites [PDF]

, 2017
Scope The application of high‐throughput 1H nuclear magnetic resonance (1H‐NMR) of unpurified extracts to determine genetic diversity and the contents of polar components in grain of wheat. Methods and results Milled whole wheat grain was extracted with
Shewry, P. R., Beale, M. H., Jones, H. D., Corol, D. I., Ward, J. L.   +4 more
core   +1 more source