scholarly journals Magic-angle spinning NMR spectroscopy provides insight into the impact of small molecule uptake by G-quartet hydrogels

2020 ◽  
Vol 1 (7) ◽  
pp. 2236-2247
Author(s):  
G. N. Manjunatha Reddy ◽  
Gretchen M. Peters ◽  
Ben P. Tatman ◽  
Teena S. Rajan ◽  
Si Min Kock ◽  
...  

Compositions, local structures and interactions of medicinally relevant small molecules added to G-quartet hydrogels are characterized using gel-state NMR spectroscopy.

2007 ◽  
Vol 35 (5) ◽  
pp. 991-995 ◽  
Author(s):  
C. Ader ◽  
R. Schneider ◽  
K. Seidel ◽  
M. Etzkorn ◽  
M. Baldus

ssNMR (solid-state NMR) spectroscopy provides increasing possibilities to study the structural and dynamic aspects of biological membranes. Here, we review recent ssNMR experiments that are based on MAS (magic angle spinning) and that provide insight into the structure and dynamics of membrane systems at the atomic level. Such methods can be used to study membrane architecture, domain formation or molecular complexation in a way that is highly complementary to other biophysical methods such as imaging or calorimetry.


PLoS Biology ◽  
2018 ◽  
Vol 16 (5) ◽  
pp. e2006192 ◽  
Author(s):  
Daniel Stöppler ◽  
Alex Macpherson ◽  
Susanne Smith-Penzel ◽  
Nicolas Basse ◽  
Fabien Lecomte ◽  
...  

2013 ◽  
Vol 32 (9) ◽  
pp. 1024-1027
Author(s):  
Yu LI ◽  
Jing-xia ZHAO ◽  
Gen-jin YANG ◽  
Wei ZHANG ◽  
Zi-yang LOU

1994 ◽  
Vol 49 (1-2) ◽  
pp. 19-26 ◽  
Author(s):  
B. Blümich

Abstract Recent developments, focussing on reduction of the rf excitation power by stochastic excitation, on improvements in sensitivity and excitation bandwidth by magic angle spinning, and on combining wideline spectroscopy with spatial resolution for investigations o f spatially inhomogeneous objects are reviewed.


Metabolites ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 38
Author(s):  
Annakatrin Häni ◽  
Gaëlle Diserens ◽  
Anna Oevermann ◽  
Peter Vermathen ◽  
Christina Precht

The metabolic profiling of tissue biopsies using high-resolution–magic angle spinning (HR-MAS) 1H nuclear magnetic resonance (NMR) spectroscopy may be influenced by experimental factors such as the sampling method. Therefore, we compared the effects of two different sampling methods on the metabolome of brain tissue obtained from the brainstem and thalamus of healthy goats by 1H HR-MAS NMR spectroscopy—in vivo-harvested biopsy by a minimally invasive stereotactic approach compared with postmortem-harvested sample by dissection with a scalpel. Lactate and creatine were elevated, and choline-containing compounds were altered in the postmortem compared to the in vivo-harvested samples, demonstrating rapid changes most likely due to sample ischemia. In addition, in the brainstem samples acetate and inositols, and in the thalamus samples ƴ-aminobutyric acid, were relatively increased postmortem, demonstrating regional differences in tissue degradation. In conclusion, in vivo-harvested brain biopsies show different metabolic alterations compared to postmortem-harvested samples, reflecting less tissue degradation. Sampling method and brain region should be taken into account in the analysis of metabolic profiles. To be as close as possible to the actual situation in the living individual, it is desirable to use brain samples obtained by stereotactic biopsy whenever possible.


1998 ◽  
Vol 134 (2) ◽  
pp. 355-359 ◽  
Author(s):  
Tilo Fritzhanns ◽  
Siegfried Hafner ◽  
Dan E. Demco ◽  
Hans W. Spiess ◽  
Frank H. Laukien

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