Results 1 to 10 of about 568,615 (320)

Challenges and Advances in the Application of Dynamic Nuclear Polarization to Liquid-State NMR Spectroscopy. [PDF]

open access: yesJ Phys Chem B, 2021
Nuclear magnetic resonance (NMR) spectroscopy is a powerful method to study the molecular structure and dynamics of materials. The inherently low sensitivity of NMR spectroscopy is a consequence of low spin polarization.
Abhyankar N, Szalai V.
europepmc   +2 more sources

Liquid-State NMR Analysis of Nanocelluloses [PDF]

open access: yesBiomacromolecules, 2018
Recent developments in ionic liquid electrolytes for cellulose or biomass dissolution has also allowed for high-resolution 1H and 13C NMR on very high molecular weight cellulose. This permits the development of advanced liquid-state quantitative NMR methods for characterization of unsubstituted and low degree of substitution celluloses, for example ...
Alistair W. T. King   +10 more
openaire   +4 more sources

Interfacing Liquid State Hyperpolarization Methods with NMR Instrumentation

open access: yesJournal of Magnetic Resonance Open, 2022
Advances in liquid state hyperpolarization methods have enabled new applications of high-resolution NMR spectroscopy. Utilizing strong signal enhancements from hyperpolarization allows performing NMR spectroscopy at low concentration, or with high time ...
Pierce Pham   +3 more
doaj   +3 more sources

Unprecedented Carbon Signal Enhancement in Liquid-State NMR Spectroscopy. [PDF]

open access: yesAngew Chem Int Ed Engl, 2017
We shall overcome: As a result of efforts to overcome the sensitivity challenge of liquid-state NMR spectroscopy, a thousand-fold signal enhancement was achieved by dynamic nuclear polarization (DNP) for 13 C signals at high magnetic field (3.4 T) and room temperature, thereby exceeding the predicted limitations of high-field liquid-state in situ DNP.
Pintér G, Schwalbe H.
europepmc   +4 more sources

Liquid-state NMR simulations of quantum many-body problems [PDF]

open access: yesPhysical Review A, 2005
Recently developed quantum algorithms suggest that in principle, quantum computers can solve problems such as simulation of physical systems more efficiently than classical computers. Much remains to be done to implement these conceptual ideas into actual quantum computers.
Negrevergne, C.   +4 more
openaire   +4 more sources

Convection in liquid-state NMR: expect the unexpected

open access: yesRSC Advances, 2016
Temperature gradients in liquid NMR samples cause convection, attenuating signals in experiments that use field gradients. Different spectrometers and probes show surprisingly different dependences of convection velocity vmax on temperature T.
Barbosa, T. M.   +4 more
openaire   +4 more sources

A Study of Quantum Error Correction by Geometric Algebra and Liquid-State NMR Spectroscopy [PDF]

open access: yes, 2000
Quantum error correcting codes enable the information contained in a quantum state to be protected from decoherence due to external perturbations. Applied to NMR, quantum coding does not alter normal relaxation, but rather converts the state of a ``data''
ABRAGAM A.   +16 more
core   +4 more sources

Robust quantum information processing with techniques from liquid–state NMR [PDF]

open access: yesPhilosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2003
While Nuclear Magnetic Resonance (NMR) techniques are unlikely to lead to a large scale quantum computer they are well suited to investigating basic phenomena and developing new techniques. Indeed it is likely that many existing NMR techniques will find uses in quantum information processing. Here I describe how the composite rotation (composite pulse)
Jonathan A. Jones
openaire   +6 more sources

Liquid-State NMR Quantum Computing

open access: yes, 2010
This in an introduction on quantum computing and on the use of NMR to build quantum computers, geared towards an NMR audience.
Vandersypen, Lieven M. K.   +2 more
openaire   +3 more sources

Residue-Resolved Liquid-State Hyperpolarized NMR of Peptide Condensate Surfaces. [PDF]

open access: yesJ Am Chem Soc
Understanding how biomolecular condensates interact with their environment requires atomic-level insights into their surface composition. However, conventional Nuclear Magnetic Resonance (NMR) spectroscopy lacks the sensitivity to probe solvent-exposed regions in large, phase-separated peptide systems, where surface moieties are sparse relative to bulk
Brandis D   +3 more
europepmc   +4 more sources

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