scholarly journals Exploring the limits of 73Ge solid-state NMR spectroscopy at ultrahigh magnetic field

2010 ◽  
Vol 46 (16) ◽  
pp. 2817 ◽  
Author(s):  
Andre Sutrisno ◽  
Margaret A. Hanson ◽  
Paul A. Rupar ◽  
Victor V. Terskikh ◽  
Kim M. Baines ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Solid State ◽  
Nmr Spectroscopy ◽  
Solid State Nmr ◽  
Solid State Nmr Spectroscopy ◽  
Ultrahigh Magnetic Field

scholarly journals Solid-state NMR spectroscopy of a membrane protein in biphenyl phospholipid bicelles with the bilayer normal parallel to the magnetic field

2008 ◽  
Vol 193 (1) ◽  
pp. 133-138 ◽  
Author(s):  
Sang Ho Park ◽  
Cécile Loudet ◽  
Francesca M. Marassi ◽  
Erick J. Dufourc ◽  
Stanley J. Opella
Keyword(s):  
Magnetic Field ◽  
Solid State ◽  
Nmr Spectroscopy ◽  
Membrane Protein ◽  
Solid State Nmr ◽  
Solid State Nmr Spectroscopy ◽  
The Magnetic Field

scholarly journals Magnetic-Alignment of Polymer Nanodiscs Probed by Solid-State NMR Spectroscopy

2019 ◽  
Author(s):  
Thirupathi Ravula ◽  
JaeWoong Kim ◽  
Dong-Kuk Lee ◽  
Ayyalusamy Ramamoorthy
Keyword(s):  
Magnetic Field ◽  
Solid State ◽  
Nmr Spectroscopy ◽  
Membrane Proteins ◽  
Solid State Nmr ◽  
Field Direction ◽  
Magnetic Alignment ◽  
Magnetic Field Direction ◽  
Solid State Nmr Spectroscopy ◽  
The Magnetic Field

AbstractThe ability of amphipathic polymers to self-assemble with lipids and form nanodiscs has been a boon for the field of functional reconstitution of membrane proteins. In a field dominated by detergent micelles, a unique feature of polymer nanodiscs is their much-desired ability to align in the presence of an external magnetic field. Magnetic alignment facilitates the application of solid-state NMR spectroscopy and aids in the measurement of residual dipolar couplings (RDCs) via well-established solution NMR spectroscopy. In this study, we comprehensively investigate the magnetic-alignment properties of SMA-QA polymer based nanodiscs by using 31P and 14N solid-state NMR experiments under static conditions. The results reported herein demonstrate the spontaneous magnetic-alignment of large-size (≥ 20 nm diameter) SMA-QA nanodiscs (also called as macro-nanodiscs) with the lipid-bilayer-normal perpendicular to the magnetic field direction. Consequently, the orientation of macro-nanodiscs are further shown to flip their alignment axis parallel to the magnetic field direction upon the addition of a paramagnetic lanthanide salt. These results demonstrate the use of SMA-QA polymer nanodiscs for solid-state NMR applications including structural studies on membrane proteins.

Recent progress in dipolar recoupling techniques under fast MAS in solid-state NMR spectroscopy

2021 ◽  
Vol 112 ◽  
pp. 101711
Author(s):  
Yi Ji ◽  
Lixin Liang ◽  
Xinhe Bao ◽  
Guangjin Hou
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Solid State Nmr ◽  
Recent Progress ◽  
Solid State Nmr Spectroscopy ◽  
Dipolar Recoupling ◽  
Fast Mas

scholarly journals A New Methodological Approach to Correlate Protective and Microscopic Properties by Soft X-ray Microscopy and Solid State NMR Spectroscopy: The Case of Cusa’s Stone

2021 ◽  
Vol 11 (13) ◽  
pp. 5767
Author(s):  
Veronica Ciaramitaro ◽  
Alberto Spinella ◽  
Francesco Armetta ◽  
Roberto Scaffaro ◽  
Emmanuel Fortunato Gulino ◽  
...  
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Solid State Nmr ◽  
Methodological Approach ◽  
Polymer Chains ◽  
General Question ◽  
Protective Agent ◽  
Vapour Permeability ◽  
X Ray ◽  
Solid State Nmr Spectroscopy

Hydrophobic treatment is one of the most important interventions usually carried out for the conservation of stone artefacts and monuments. The study here reported aims to answer a general question about how two polymers confer different protective performance. Two fluorinated-based polymer formulates applied on samples of Cusa’s stone confer a different level of water repellence and water vapour permeability. The observed protection action is here explained on the basis of chemico-physical interactions. The distribution of the polymer in the pore network was investigated using scanning electron microscopy and X-ray microscopy. The interactions between the stone substrate and the protective agents were investigated by means of solid state NMR spectroscopy. The ss-NMR findings reveal no significant changes in the chemical neighbourhood of the observed nuclei of each protective agent when applied onto the stone surface and provide information on the changes in the organization and dynamics of the studied systems, as well as on the mobility of polymer chains. This allowed us to explain the different macroscopic behaviours provided by each protective agent to the stone substrate.

Dynamic Motion of Organic Spacer Cations in Ruddlesden–Popper Lead Iodide Perovskites Probed by Solid-State NMR Spectroscopy

2021 ◽  
Vol 33 (2) ◽  
pp. 642-656
Author(s):  
Clayton J. Dahlman ◽  
Rhys M. Kennard ◽  
Piotr Paluch ◽  
Naveen R. Venkatesan ◽  
Michael L. Chabinyc ◽  
...  
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Solid State Nmr ◽  
Lead Iodide ◽  
Solid State Nmr Spectroscopy ◽  
Dynamic Motion
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