Results 261 to 270 of about 18,954,287 (311)

Liquid state 1H high field NMR in food analysis

Progress in Nuclear Magnetic Resonance Spectroscopy, 2012
WOS ...
L Mannina, A P Sobolev, S Viel
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Lipid analysis of Neochloris oleoabundans by liquid state NMR

Biotechnology and Bioengineering, 2010
AbstractThis study is an evaluation of liquid state NMR as a tool for analyzing the lipid composition of algal cultures used for biodiesel production. To demonstrate the viability of this approach, 13C NMR was used to analyze the lipid composition of intact cells of the algal species, Neochloris oleoabundans (UTEX #1185). Two cultures were used in this
Beal, C. M., Webber, M. E., Ruoff, R. S., Hebner, R. E.   +3 more
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Liquid-State NMR and Scalar Couplings in Microtesla Magnetic Fields

Science, 2002
We obtained nuclear magnetic resonance (NMR) spectra of liquids in fields of a few microtesla, using prepolarization in fields of a few millitesla and detection with a dc superconducting quantum interference device (SQUID). Because the sensitivity of the SQUID is frequency independent, we enhanced both signal-to-noise ratio and spectral resolution by ...
Robert, McDermott, Andreas H, Trabesinger, Michael, Muck, Erwin L, Hahn, Alexander, Pines, John, Clarke   +5 more
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Are They Connected? Liquid-State NMR Spectroscopy of Chitinous Materials

Biomacromolecules
Since the resurgence of interest in chitinous materials in the 1970s, significant efforts have been devoted to their utilization and valorization. With the availability of ISO 13485-certified chitinous materials suitable for biomedical use, these polymers are no longer merely waste-derived byproducts. Chemical derivatization has resulted in a large and
Casper Van Poucke, Sven Mangelinckx, Christian V. Stevens   +2 more
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SQUID-Detected Liquid State NMR in Microtesla Fields

The Journal of Physical Chemistry A, 2004
Nuclear magnetic resonance (NMR) experiments performed in magnetic fields on the order of microtesla yield line widths comparable to the lifetime limit even in grossly inhomogeneous magnets. The potential loss in sensitivity is overcome by combining prepolarization in fields on the order of millitesla and signal detection with a Superconducting Quantum
Andreas H. Trabesinger, Robert McDermott, SeungKyun Lee, Michael Mück, John Clarke, Alexander Pines   +5 more
openaire   +1 more source

Insights into the Structure of Sucralfate by Advanced Solid- and Liquid-State NMR

Molecular Pharmaceutics
Sucralfate, which is a sucrose octasulfate aluminum complex, is an active pharmaceutical ingredient (API) falling in the category of cytoprotective agents which are very effective for gastric and duodenal ulcers. On interaction with stomach acid, it ionizes into aluminum and sucrose octasulfate ions to form a protective layer over the ulcerated region ...
Chaithanya Hareendran, Sapna Ravindranathan, T. G. Ajithkumar   +2 more
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ChemInform Abstract: Liquid State NMR Quantum Computing

ChemInform, 2001
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Lieven M. K. Vandersypen, Costantino S. Yannoni, Isaac L. Chuang   +2 more
openaire   +1 more source

Ensemble Quantum Computing by Liquid-State NMR Spectroscopy

2001
Abstract : We propose to use NMR as a testbed to develop general methods for solving computational problems on EQC's, to study the fundamental physics and computer science of these machines, and to learn how to make optimal use of the trade-offs that their unique capabilities permit us to make.
David G. Cory, Timothy E. Havel
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Generating spin turbulence through nonlinear excitation in liquid-state NMR

Journal of Magnetic Resonance, 2009
Chaotic dynamics of a water magnetization in a 600 MHz NMR spectrometer was generated by a radiation damping-based electronic feedback. Erratic induction signal was observed for several tens of seconds. The analysis of the data shows that this chaotic behaviour can be ascribed to spin turbulence in the sample and that a simpler model based on the three-
Abergel, Daniel, Louis-Joseph, Alain
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SPINEVOLUTION: A powerful tool for the simulation of solid and liquid state NMR experiments

Journal of Magnetic Resonance, 2006
Exact numerical simulations of NMR experiments are often required for the development of new techniques and for the extraction of structural and dynamic information from the spectra. Simulations of solid-state magic angle spinning (MAS) experiments can be particularly demanding both computationally and in terms of the programming required to carry them
Mikhail, Veshtort, Robert G, Griffin
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