Results 61 to 70 of about 297,128 (308)

Consecutive Queries to Assess Biological Correlation in NMR Metabolomics: Performance of Comprehensive Search of Multiplets over Typical 1D 1H NMR Database Search.

open access: yesJournal of Proteome Research, 2020
NMR-based metabolomics requires the proper identification of metabolites to extract conclusions from the system under study. Normally, multivariate data analysis is performed on 1D 1H NMR spectra, and the identification of peaks (and then compounds ...
Andrés Charris-Molina   +3 more
semanticscholar   +1 more source

Profiling of oligolignols reveals monolignol coupling conditions in lignifying poplar xylem [PDF]

open access: yes, 2004
Lignin is an aromatic heteropolymer, abundantly present in the walls of secondary thickened cells. Although much research has been devoted to the structure and composition of the polymer to obtain insight into lignin polymerization, the low-molecular ...
Boerjan, Wout   +7 more
core   +3 more sources

HMDB 5.0: the Human Metabolome Database for 2022

open access: yesNucleic Acids Res., 2021
The Human Metabolome Database or HMDB (https://hmdb.ca) has been providing comprehensive reference information about human metabolites and their associated biological, physiological and chemical properties since 2007. Over the past 15 years, the HMDB has
D. Wishart   +36 more
semanticscholar   +1 more source

Table-top NMR system for high-pressure studies with in-situ laser heating [PDF]

open access: yes, 2019
High pressure Nuclear Magnetic Resonance (NMR) is known to uncover behavior of matter at extreme conditions. However, significant maintenance demands, space requirements and high costs of superconducting magnets render its application unfeasible for regular modern high pressure laboratories.
arxiv   +1 more source

Amino Acid Classification in 2D NMR Spectra via Acoustic Signal Embeddings [PDF]

open access: yesarXiv, 2022
Nuclear Magnetic Resonance (NMR) is used in structural biology to experimentally determine the structure of proteins, which is used in many areas of biology and is an important part of drug development. Unfortunately, NMR data can cost thousands of dollars per sample to collect and it can take a specialist weeks to assign the observed resonances to ...
arxiv  

Metabolic Impacts of Using Nitrogen and Copper-Regulated Promoters to Regulate Gene Expression in Neurospora crassa. [PDF]

open access: yes, 2015
The filamentous fungus Neurospora crassa is a long-studied eukaryotic microbial system amenable to heterologous expression of native and foreign proteins. However, relatively few highly tunable promoters have been developed for this species.
Beecher, Consuelo N   +4 more
core   +1 more source

Simulation of 2D NMR Spectra of Carbohydrates Using GODESS Software

open access: yesJournal of Chemical Information and Modeling, 2016
Glycan Optimized Dual Empirical Spectrum Simulation (GODESS) is a web service, which has been recently shown to be one of the most accurate tools for simulation of (1)H and (13)C 1D NMR spectra of natural carbohydrates and their derivatives.
R. Kapaev, P. Toukach
semanticscholar   +1 more source

Harnessing Interfacial Cl− Ions for Concurrent Formate Production at Industrial Level via CO2 Reduction and Methanol Oxidation

open access: yesAdvanced Functional Materials, EarlyView.
The replacement of the anodic OER in CO2RR with energy‐saving methanol oxidation reaction and the creation of a favorable microenvironment through interfacial Cl− ions enable concurrent formate production at industrial‐level current densities. Abstract The efficient electrocatalytic conversion of CO2 to formate is often impeded by the high energy ...
Yiqun Chen   +7 more
wiley   +1 more source

Presence of 3d Quadrupole Moment in LaTiO3 Studied by 47,49Ti NMR [PDF]

open access: yes, 2003
Ti NMR spectra of LaTiO3 are reexamined and the orbital state of this compound is discussed. The NMR spectra of LaTiO3 taken at 1.5 K under zero external field indicate a large nuclear quadrupole splitting. This splitting is ascribed to the presence of the rather large quadrupole moment of 3d electrons at Ti sites, suggesting that the orbital liquid ...
arxiv   +1 more source

A new xantphos-type ligand and its gold(I) complexes: Synthesis, structure, luminescence [PDF]

open access: yes, 2013
A novel xantphos analog diphosphine ligand, 9,9-dimethyl-4,5-bis(diphenylphosphinomethyl)-9H-xanthene (X(CP)2), with methylene groups inserted between the xanthene skeleton and the two diphenylphosphine units, has been synthesized. A two-coordinate and a
Baranyai, Péter   +8 more
core   +1 more source

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