Results 51 to 60 of about 264,992 (304)

Novel Crossover in Coupled Spin Ladders [PDF]

open access: yes, 2017
We report a novel crossover behavior in the long-range-ordered phase of a prototypical spin-$1/2$ Heisenberg antiferromagnetic ladder compound $\mathrm{(C_7H_{10}N)_2CuBr_4}$.
Berthier, C.   +5 more
core   +4 more sources

Combinatorial Synthesis of Next Generation Water‐Soluble Quaternized N‐Halamine Oligomers with Long‐Lasting Antiviral Properties

open access: yesAdvanced Functional Materials, EarlyView.
A combinatorial library of dual‐functional antiviral oligomers incorporating N‐halamine and quaternary ammonium functionalities is developed for long‐lasting antiviral activity. The lead materials exhibit rapid and durable antiviral activity against SARS‐CoV‐2 variants and influenza H1N1, with 4 to 5 log reduction in viral copies at 5 mg mL−1 ...
Eid Nassar‐Marjiya   +14 more
wiley   +1 more source

Duplicate detection of 2D-NMR Spectra

open access: yesJournal of Integrative Bioinformatics, 2007
2D-Nuclear magnetic resonance (NMR) spectra are used in the (structural) analysis of small molecules. In contrast to 1D-NMR spectra, 2D-NMR spectra correlate the chemical shifts of 1H and 13C at the same time.
Hinneburg Alexander   +2 more
doaj   +1 more source

Upen2DTool: A Uniform PENalty Matlab tool for inversion of 2D NMR relaxation data

open access: yesSoftwareX, 2019
The analysis of Nuclear Magnetic Resonance (NMR) relaxation of 1H nuclei gives fundamental information about the structure of different types of porous media via the determination of 1-dimensional and 2-dimensional (2D) distributions of the typical NMR ...
V. Bortolotti   +4 more
doaj   +1 more source

Automatic differential analysis of NMR experiments in complex samples

open access: yes, 2017
Liquid state NMR is a powerful tool for the analysis of complex mixtures of unknown molecules. This capacity has been used in many analytical approaches: metabolomics, identification of active compounds in natural extracts, characterization of species ...
Bourjot, Mélanie   +6 more
core   +3 more sources

Synthesis and Quantitative Structure–Activity Relationship of Imidazotetrazine Prodrugs with Activity Independent of O6-Methylguanine-DNA-methyltransferase, DNA Mismatch Repair and p53. [PDF]

open access: yes, 2013
The antitumor prodrug Temozolomide is compromised by its dependence for activity on DNA mismatch repair (MMR) and the repair of the chemosensitive DNA lesion, O6-methylguanine (O6-MeG), by O6-methylguanine-DNA-methyltransferase (EC 2.1.1.63, MGMT). Tumor
Arris C. E.   +42 more
core   +1 more source

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

open access: yesAdvanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr   +7 more
wiley   +1 more source

NMR Data Analysis of Acarbose

open access: yesChinese Journal of Magnetic Resonance
Acarbose, an α-glucosidase inhibitor, has been widely used in the treatment of type-II diabetes due to its unique mechanism of action. In this study, comprehensive and accurate 1H and 13C NMR data of acarbose in DMSO-d6, including 1H NMR data of all ...
LI Yujiang   +7 more
doaj   +1 more source

An 1H NMR- and MS-Based Study of Metabolites Profiling of Garden Snail Helix aspersa Mucus

open access: yesMetabolites, 2020
Metabolic profiling based on 1H nuclear magnetic resonance (NMR) spectroscopy was applied with the aim to investigate the functional role of the metabolites in lyophilized mucus from the garden snail Helix aspersa.
Nikolay G. Vassilev   +6 more
doaj   +1 more source

Two-dimensional tetramer-cuprate Na5RbCu4(AsO4)4Cl2: phase transitions and AFMorder as seen by 87Rb NMR

open access: yes, 2005
We report the Rb nuclear magnetic resonance (NMR) results in a recently synthesized Na5RbCu4(AsO4)Cl2. This complex novel two-dimensional (2D) cuprate is an unique magnetic material, which contains layers of coupled Cu4O4 tetramers.
A. Kriisa   +11 more
core   +1 more source

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