Results 41 to 50 of about 7,476,383 (306)

Temperature-Dependent Solid-State NMR Proton Chemical-Shift Values and Hydrogen Bonding [PDF]

, 2021
Temperature-dependent NMR experiments are often complicated by rather long magnetic-field equilibration times, for example occurring upon a change of sample temperature.
Alexander A., Malär, Lauriane, Lecoq, Riccardo, Cadalbert, Matthias, Ernst, Laura A., Völker, Beat H., Meier, Anja, Böckmann, Thomas, Wiegand   +7 more
core   +2 more sources

Pattern-Based Recognition for Determination of Enantiomeric Excess, Using Chiral Auxiliary Induced Chemical Shift Perturbation NMR

, 2010
A protocol for the determination of enantiomeric excess of chiral carboxylic acid, using the subtle frequency shifts (chemical shift perturbation) in NMR spectra induced by chiral auxiliary, is described.
Zhang, Anjiang, Chen, Xiaojing, Yu, Xiaochun, Ding, Lisheng, Lei, XX, Wenzhou Univ, Coll Chem & Mat Engn, Wenzhou 325035, Peoples R China, Lei, Xinxiang, Liu, Lu, Anjiang Zhang, Xiaochun Yu, Lu Liu, Lisheng Ding, Xinxiang Lei, Xiaojing Chen   +12 more
core   +1 more source

QM Assisted ML for 19F NMR Chemical Shift Prediction [PDF]

, 2023
Ligand-observed 19F NMR detection is an efficient method for screening libraries of fluorinated molecules in fragment-based drug design campaigns. Screening fluorinated molecules in large mixtures makes 19F NMR a high-throughput method.
Anna, Vulpetti, Patrick, Penner
core   +2 more sources

Machine Learning Full NMR Chemical Shift Tensors of Silicon Oxides with Equivariant Graph Neural Networks [PDF]

, 2023
The nuclear magnetic resonance (NMR) chemical shift tensor is a highly sensitive probe of the electronic structure of an atom and furthermore its local structure.
Venetos, Maxwell C, Wen, Mingjian, Persson, Kristin A, Venetos, Maxwell C., Mingjian Wen, Persson, Kristin A., Maxwell C. Venetos, Kristin A. Persson   +7 more
core   +1 more source

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Interaction of electrolyte molecules with the surface of porous carbon: NMR study

Фізика і хімія твердого тіла
Electrochemical double-layer capacitors use porous carbons as the electrode material, and improving their performance requires an understanding of the electrolyte−carbon surface interactions.
I.M. Budzuliak, L.S. Yablon, V.O. Kotsyubynsky, B.I. Rachii, I.I. Budzuliak, V.M. Boychuk, R.V. Ilnytskyi, R.I. Kryvulych   +7 more
doaj   +1 more source

Chemical potential shift in

, 2002
We have studied the chemical potential shift in La$_{1-x}$SrxMnO3 as a function of doped hole concentration by core-level X-ray photoemission. The shift is monotonous, which means that there is no electronic phase separation on a macroscopic scale ...
M. Takano, A. Fujimori, Y. Takeda, J. Matsuno   +3 more
core   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Three-Dimensional Structures of 3/4/5-O-feruloylquinic Acids by NMR Spectroscopy and Quantum Chemistry Calculation

Chinese Journal of Magnetic Resonance
3/4/5-O-feruloylquinic acids (3/4/5-O-FQA) have antioxidant activity, which is beneficial to disease prevention and human health maintenance, however, their exact 3D structures are still unknown.
ZHANG Jiayu, NIE Wenbo, TU Zhao, TU Zhao, WANG Yan, YANG Chunsheng   +5 more
doaj   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source