Results 41 to 50 of about 267,493 (300)

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

Advanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich, Paul Markus, Matthias Stöter, Bernhard Biersack, Rainer Schobert, Josef Breu, Georg Papastavrou   +6 more
wiley   +1 more source

Hyperpolarised ¹H–¹³C Benchtop NMR Spectroscopy

Applied Sciences, 2019
Benchtop NMR spectrometers with sub-ppm spectral resolution have opened up new opportunities for performing NMR outside of the standard laboratory environment.
Alastair D. Robinson, Peter M. Richardson, Meghan E. Halse   +2 more
doaj   +1 more source

A Methodology Study on the Optimal Detection of Oil and Moisture Content in Soybeans Using LF-NMR and Its 2D T₁-T₂ Nuclear Magnetic Technology

Agronomy, 2023
In this study, we aimed to provide an accurate method for the detection of oil and moisture content in soybeans. Introducing two-dimensional low-field nuclear magnetic resonance (LF-2D-NMR) qualitatively solved the problem of overlapping component ...
Yu Zhang, Jianxiang Zhao, Ying Gu, Yu Zhang, Yi Chen, Ping Song, Tao Yang   +6 more
doaj   +1 more source

Electroactive Metal–Organic Frameworks for Electrocatalysis

Advanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska, Yutong Luo, Ruyan Zhao, Jianjun Zhang, Mingchao Wang, Xinliang Feng, Eike Brunner, Stefan Kaskel   +7 more
wiley   +1 more source

C-15 ACETOGENINS FROM THE MARINE ALGA Chondria

Indonesian Journal of Chemistry, 2010
(-) Z-Pinnatifidenyne, a novel C-15 acetogenin has been isolated along with the known compound (+)-3Z,6R,7R-obtusenyne and (+) (3Z)-laurenyne from the Australian red alga Chondria armata.
Antonius R.B. Ola, Bruce F. Bowden
doaj   +1 more source

Assignments of NMR Spectral Data of a Novel Carbazole-Triazinoindole Based N-Acylhydrazone Derivative

Chinese Journal of Magnetic Resonance, 2020
N-acylhydrazone compounds have two isomers, E/cis and E/trans, in polar solvents. In this work, 1H and 13C nuclear magnetic resonance (NMR) signals, coupling constants (J), and the spatial structures of the two isomers (E/cis and E/trans) of a novel ...
LI Ying-jun, YANG Hong-jing, LIU Ji-hong, JIN Kun, LIN Le-di, LIU Xue-jie   +5 more
doaj   +1 more source

Uprolides N, O and P from the Panamanian Octocoral Eunicea succinea. [PDF]

, 2016
Three new diterpenes, uprolide N (1), uprolide O (2), uprolide P (3) and a known one, dolabellane (4), were isolated from the CH₂Cl₂-MeOH extract of the gorgonian octocoral Eunicea succinea, collected from Bocas del Toro, on the Caribbean coast of Panama.
Fernandez, Patricia L, Gerwick, William H, González, Yisett, Gutiérrez, Marcelino, Guzmán, Héctor M, Gómez-Reyes, José Félix, López-Perez, José Luis, Torres-Mendoza, Daniel   +7 more
core   +2 more sources

Chemoselective Sequential Polymerization: An Approach Toward Mixed Plastic Waste Recycling

Advanced Functional Materials, EarlyView.
Inspired by biological protein metabolism, this study demonstrates the closed‐loop recycling of mixed synthetic polymers via ring‐closing depolymerization followed by a chemoselective sequential polymerizations process. The approach recovers pure polymers from mixed feedstocks, even in multilayer formats, highlighting a promising strategy to overcome a
Gadi Slor, Youwei Ma, Hyunwoo Park, Tae‐Lim Choi, Damien Guironnet, Francesco Stellacci   +5 more
wiley   +1 more source

Duplicate detection of 2D-NMR Spectra

Journal 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, Egert Björn, Porzel Andrea   +2 more
doaj   +1 more source

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

SoftwareX, 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, L. Brizi, P. Fantazzini, G. Landi, F. Zama   +4 more
doaj   +1 more source