Results 41 to 50 of about 526,143 (335)

Structure Confirmation of Three New Psychoactive Substances and Qualitative Identification of Unknown Substances

open access: yesFayixue Zazhi
ObjectiveTo establish the structural confirmation methods of three suspected new psychoactive substances (NPSs), and explore a more general qualitative testing method.MethodsInfrared absorption spectroscopy (IR), gas chromatography-mass spectrometry (GC ...
NIE Zong-yang   +5 more
doaj   +1 more source

Solid-State NMR Studies on the Surface Structure and Properties of Oxide Nanomaterials

open access: yesChinese Journal of Magnetic Resonance, 2021
Many applications of oxide nanomaterials depend on their surface structure and properties. Solid-state nuclear magnetic resonance (NMR) spectroscopy has been used to obtain such key information in related studies.
Xi-feng XIA   +7 more
doaj   +1 more source

Acute and chronic inflammation alter immunometabolism in a cutaneous delayed-type hypersensitivity reaction (DTHR) mouse model

open access: yesCommunications Biology, 2022
Nuclear magnetic resonance spectroscopy-based tissue metabolomics is used to define detailed temporal signatures of acute and chronic inflammation in cutaneous delayed-type hypersensitivity reaction.
Laimdota Zizmare   +7 more
doaj   +1 more source

Microstructure, vacancies and moments of nuclear magnetic resonance of hydrogenated amorphous silicon

open access: yes, 2010
Recent experiments on hydrogenated amorphous silicon using infrared absorption spectroscopy have indicated the presence of mono- and divacancy in samples for concentration of up to 14\% hydrogen. Motivated by this observation, we study the microstructure
Biswas, Parthapratim   +1 more
core   +1 more source

Protein O‐glycosylation in the Bacteroidota phylum

open access: yesFEBS Open Bio, EarlyView.
Species of the Bacteroidota phylum exhibit a unique O‐glycosylation system. It modifies noncytoplasmic proteins on a specific amino acid motif with a shared glycan core but a species‐specific outer glycan. A locus of multiple glycosyltransferases responsible for the synthesis of the outer glycan has been identified.
Lonneke Hoffmanns   +2 more
wiley   +1 more source

Interplay between RNA‐protein interactions and RNA structures in gene regulation

open access: yesFEBS Open Bio, EarlyView.
Methodological advances in mapping transcriptome‐wide RNA‐protein interactions and RNA structures have started to uncover the potential of RNP conformations in gene regulation. Competing RNA–RNA, RNA‐protein and protein–protein interactions shape the compaction and function of RNPs throughout their lifetime and may provide novel therapeutic targets in ...
Jenni Rapakko   +2 more
wiley   +1 more source

Molecular determinants of signal transduction in tropomyosin receptor kinases

open access: yesFEBS Open Bio, EarlyView.
Tropomyosin receptor kinases control critical neuronal functions, but how do the same receptors produce diverse cellular responses? This review explores the structural mechanisms behind Trk signaling diversity, focusing on allosteric modulation and ligand bias.
Giray Enkavi
wiley   +1 more source

Analysis of unsaturated C27 sterols by nuclear magnetic resonance spectroscopy.

open access: yesJournal of Lipid Research, 1996
Complete 1H and 13C nuclear magnetic resonance (NMR) signal assignments have been established for 5 alpha-cholestan-3 beta-ol, 22 unsaturated C27 sterols, and their acetate derivatives.
W K Wilson   +5 more
doaj   +1 more source

Qualitative and quantitative analysis of mixtures of compounds containing both hydrogen and deuterium [PDF]

open access: yes, 1969
Method allows qualitative and quantitative analysis of mixtures of partially deuterated compounds. Nuclear magnetic resonance spectroscopy determines location and amount of deuterium in organic compounds but not fully deuterated compounds.
Crespi, H. L.   +4 more
core   +1 more source

High-field optically detected nuclear magnetic resonance in GaAs

open access: yes, 2005
A method for high-field optically detected nuclear magnetic resonance (ODNMR) is developed sensitive to 10**8 nuclei. Nuclear spin transitions are induced using a radio frequency coil and detected through Faraday rotation spectroscopy.
Awschalom, D. D., Poggio, M.
core   +1 more source

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