Pulse Sequences for Biological Solid-State NMR 59
Symmetry based pulse sequences in solid state NMR and applications to biological systems
... π pulse reverses the sign of H IS the dipolar coupling is no longer averaged to zero but gets scaled by κ, the scaling factor, depending on the nature of the pulse sequence applied for ...
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Dipolar recoupling in solid state NMR by phase alternating pulse sequences
... composite pulse sequences [21,22,23] from liquid-state NMR can be incorporated in dipolar recoupling experiments to make them insensitive to angle β and ...composite pulse ...
21
Symmetry based pulse sequences in magic angle spinning solid state NMR
... cases, pulse sequences work even if the scaling factor is very ...RFDR pulse sequence 33,34 employs XY phase cycling and conforms to R4 1 4 ...this pulse sequence used an R element consisting ...
32
Biological Membrane Structure By Solid-State NMR
... particularly solid-state NMR spectroscopy, is a method of choice to study the structure and dynamics of both the lipid and the protein components of model and biological ...C ...
7
Theory and applications of supercycled symmetry based recoupling sequences in solid state NMR
... symmetry-based sequences may be greatly improved by supercycling, ...the pulse sequence with an additional overall phase shift and/or a change in sign of all ...supercycled pulse sequence called ...
19
Theory and applications of supercycled symmetry-based recoupling sequences in solid-state NMR
... symmetry-based sequences may be greatly improved by supercycling, ...the pulse sequence with an additional overall phase shift and/or a change in sign of all ...supercycled pulse sequence called ...
19
Continuous Wave NMR Imaging in the Solid State
... mechanisms is constant and therefore is not observed. The spatial resolution is only limited by the magnitude of the applied gradient. The SPI technique tends to be very hard on the gradient amplifiers because of the ...
86
Solid-State NMR of Quadrupolar Nuclei for Structural Elucidation
... recovery pulse sequence. 13 Transverse magnetization generated by an applied pulse will also undergo ...a pulse is applied the transverse magnetization precesses in the x ′ y ′ - plane, however, its ...
230
Characterization of Inorganic Catalysts and Materials by Solid-State NMR
... QCPMG pulse sequence of the form {π/2 - [τ - π - τ - acquire] N } was used for the acquisition of 35 Cl NMR ...the NMR parameters extracted from ...of solid-state 35 Cl NMR ...
447
Multinuclear solid state NMR for the characterisation of inorganic materials
... (MAS NMR spectrum) in one dimension ( 2 ) usually with the isotropic spectrum, free of quadrupolar broadening, in the other ( 1 ...original pulse sequence were made in order to obtain pure absorption-mode ...
401
Perspective : current advances in solid state NMR spectroscopy
... with NMR spectroscopy in the solid state will remain the subject of ongoing research effort and technological ...decoupling sequences and the increased availability of high magnetic field ...
27
Combining solid state NMR spectroscopy with first principles calculations – a guide to NMR crystallography
... complex pulse sequences, opening up a range of potential opportunities for the characterisation of solid ...used, solid-state NMR spectra may still contain complicated or ...
19
A solid state NMR method for solution of zeolite crystal structures
... repetitions of the bracketed elements. One complete supercycle spans 16 rotor periods and requires an r.f. field strength that provides a nutation frequency which is exactly 6.5 times the spinning frequency. The SR26 4 ...
34
Development of solid state NMR techniques for the characterisation of pharmaceutical compounds
... 15 N magnetisation was achieved using a cross-polarisation ramp of magnitude 50% to 100%, with a contact time of 1 ms for L-histidine HCl.H 2 O and the dipeptide β-AspAla, and 5 ms for all remaining compounds. The ...
195
Solid-state NMR applied to photosynthetic light-harvesting complexes
... of biological samples for solid-state NMR In NMR, the signals from nuclear spins are characterized by a parameter called the chemical shift, reflecting the variation of the induced ...
8
Structure of (KIAGKIA)3 Aggregates in Phospholipid Bilayers by Solid-State NMR
... a pulse spacing of 40 ms; the expected dephasing in the presence of fast rotation about the C a -C b bond is 70% (O’Connor and Schaefer, ...the pulse spacing was increased to 60 ...
13
Dynamic Nuclear Polarization Solid-State NMR in Heterogeneous Catalysis Research
... dedicated pulse sequences, new types of polarizing agents, and improved sample formulations yielding higher ε values and minimizing the intrusion of solvent ...
10
The development of solid state NMR methodology to study the dynamics of proteins and ice
... in solid-state nuclear magnetic res- onance (SSNMR) have moulded it into a extremely powerful technique for the deter- mination of dynamics in wide range of proteins, including challenging systems, such as ...
258
Methods for the determination of the structures and dynamics of proteins by solid state NMR spectroscopy
... With rapid development comes potential for applying SSNMR to increasingly complex systems, offering deeper understanding into the workings of biological mechanisms at the molecular level. Large proteins and ...
225
Modern NMR Pulse Sequences in Pharmaceutical R & D
... Commercial NMR equipment evolution owes much to the demands imposed by users requiring ever more sophisticated experimental ...of pulse sequences, which are often subtle variations or improvements on ...
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