The application of NMR spectroscopy for studying molecular and reaction dynamics relies crucially on the measurement of the magnitude of radiofrequency (RF) fields that are used to nutate or lock the nuclear magnetization. Here, we report a method for measuring RF field amplitudes that leverages the intrinsic modulations observed in offset-dependent NMR nutation profiles of small molecules. Such nutation profiles are exquisitely sensitive to the magnitude of the RF field, and B(1) values ranging...
Quantification of Lipoprotein Profiles Using NMR Spectroscopy - News-Medical.net
Quantification of Lipoprotein Profiles Using NMR Spectroscopy - News-Medical.net
Quantification of Lipoprotein Profiles Using NMR Spectroscopy News-Medical.netCardiovascular disease (CVD) is the number one cause of death worldwide, as well as a leading cause of inpatient hospital care and severe disability.
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Quantification of Lipoprotein Profiles Using NMR Spectroscopy - News-Medical.net
Quantification of Lipoprotein Profiles Using NMR Spectroscopy - News-Medical.net
Quantification of Lipoprotein Profiles Using NMR Spectroscopy News-Medical.netCardiovascular disease (CVD) is the number one cause of death worldwide, as well as a leading cause of inpatient hospital care and severe disability.
Read here
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03-24-2019 10:41 PM
[NMR paper] Radiofrequency fields in MAS solid state NMR probes.
Radiofrequency fields in MAS solid state NMR probes.
Radiofrequency fields in MAS solid state NMR probes.
J Magn Reson. 2017 Sep 06;284:20-32
Authors: Tošner Z, Purea A, Struppe JO, Wegner S, Engelke F, Glaser SJ, Reif B
Abstract
We present a detailed analysis of the radiofrequency (RF) field over full volume of a rotor that is generated in a solenoid coil. On top of the usually considered static distribution of amplitudes along the coil axis we describe dynamic radial RF inhomogeneities induced by sample rotation. During...
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09-26-2017 12:42 PM
[NMR paper] A 15N CPMG relaxation dispersion experiment more resistant to resonance offset and pulse imperfection
A 15N CPMG relaxation dispersion experiment more resistant to resonance offset and pulse imperfection
Publication date: Available online 21 May 2015
Source:Journal of Magnetic Resonance</br>
Author(s): Bin Jiang , Binhan Yu , Xu Zhang , Maili Liu , Daiwen Yang</br>
Carr-Purcell Meiboom-Gill (CPMG) relaxation dispersion is a powerful NMR method to study protein dynamics on the microsecond-millisecond time scale. J-coupling, resonance offset and pulse imperfection often introduce systematic errors into the measured transverse relaxation rates. Here we proposed a...
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05-21-2015 04:28 PM
[NMR paper] Optimization of cross-polarization at low radiofrequency fields for sensitivity enhancement in solid-state NMR of membrane proteins reconstituted in magnetically aligned bicelles.
Optimization of cross-polarization at low radiofrequency fields for sensitivity enhancement in solid-state NMR of membrane proteins reconstituted in magnetically aligned bicelles.
Optimization of cross-polarization at low radiofrequency fields for sensitivity enhancement in solid-state NMR of membrane proteins reconstituted in magnetically aligned bicelles.
J Magn Reson. 2015 Apr 28;256:14-22
Authors: Koroloff SN, Nevzorov AA
Abstract
Solid-state NMR (ssNMR) of oriented membrane proteins (MPs) is capable of providing...
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[NMR paper] Optimization of cross-polarization at low radiofrequency fields for sensitivity enhancement in solid-state NMR of membrane proteins reconstituted in magnetically aligned bicelles
Optimization of cross-polarization at low radiofrequency fields for sensitivity enhancement in solid-state NMR of membrane proteins reconstituted in magnetically aligned bicelles
Publication date: Available online 28 April 2015
Source:Journal of Magnetic Resonance</br>
Author(s): Sophie N. Koroloff , Alexander A. Nevzorov</br>
Solid-state NMR (ssNMR) of oriented membrane proteins (MPs) is capable of providing structural and dynamic information at nearly physiological conditions. However, NMR experiments performed on oriented membrane proteins generally suffer from...
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[NMR paper] Nutation frequency modulation on NMR signal of nuclear spins in chemical exchange with solvent water under the BEST conditions.
Nutation frequency modulation on NMR signal of nuclear spins in chemical exchange with solvent water under the BEST conditions.
Related Articles Nutation frequency modulation on NMR signal of nuclear spins in chemical exchange with solvent water under the BEST conditions.
Magn Reson Chem. 2014 Jan 24;
Authors: Yao S, Keizer DW
Abstract
Solvent exchange properties of protein backbone amide protons provide valuable residue-specific information on protein solvent accessibility, structure stability and flexibility and hence are of significant...
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01-25-2014 02:07 PM
24-SEMA as a Sensitive and Offset Compensated SLF Sequence
24-SEMA as a Sensitive and Offset Compensated SLF Sequence
Publication year: 2010
Source: Journal of Magnetic Resonance, In Press, Accepted Manuscript, Available online 3 September 2010</br>
S., Jayanthi , N., Sinha , K.V., Ramanathan</br>
Separated Local Field (SLF) spectroscopy is a powerful tool for the determination of structure and dynamics of oriented systems such as membrane proteins oriented in lipid bilayers and liquid crystals. Of many SLF techniques available, Polarization Inversion Spin Exchange at Magic Angle (PISEMA) has found wide application due to its many favorable...
Measuring radiofrequency fields in NMR spectroscopy using offset-dependent nutation profiles
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