Photo-Cross-Linked Poly(dl-lactide)-Based Networks. Structural Characterization by HR-MAS NMR Spectroscopy and Hydrolytic Degradation Behavior

2010 ◽  
Vol 43 (20) ◽  
pp. 8570-8579 ◽  
Author(s):  
Ferry P. W. Melchels ◽  
Aldrik H. Velders ◽  
Jan Feijen ◽  
Dirk W. Grijpma
Keyword(s):  
Nmr Spectroscopy ◽  
Structural Characterization ◽  
Hydrolytic Degradation ◽  
Mas Nmr ◽  
Degradation Behavior

Structural characterization of ionomer glasses by multinuclear solid state MAS-NMR spectroscopy

2007 ◽  
Vol 353 (3) ◽  
pp. 237-243 ◽  
Author(s):  
Shigeki Matsuya ◽  
Artemis Stamboulis ◽  
Robert G. Hill ◽  
Robert V. Law
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Structural Characterization ◽  
Mas Nmr

ChemInform Abstract: Structural Characterization of the Li Argyrodites Li7PS6 and Li7PSe6 and Their Solid Solutions: Quantification of Site Preferences by MAS-NMR Spectroscopy.

ChemInform ◽  
2010 ◽  
Vol 41 (31) ◽  
pp. no-no
Author(s):  
Shiao Tong Kong ◽  
Oezguel Guen ◽  
Barbara Koch ◽  
Hans Joerg Deiseroth ◽  
Hellmut Eckert ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Solid Solutions ◽  
Structural Characterization ◽  
Mas Nmr ◽  
Site Preferences

scholarly journals Sampling Method Affects HR-MAS NMR Spectra of Healthy Caprine Brain Biopsies

Metabolites ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 38
Author(s):  
Annakatrin Häni ◽  
Gaëlle Diserens ◽  
Anna Oevermann ◽  
Peter Vermathen ◽  
Christina Precht
Keyword(s):  
Nmr Spectroscopy ◽  
Sampling Method ◽  
Magic Angle Spinning ◽  
Mas Nmr ◽  
Magic Angle ◽  
1H Nuclear Magnetic Resonance ◽  
Rapid Changes ◽  
Tissue Degradation ◽  
Angle Spinning

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.

Surface Species Formed during Aniline Methylation on Zeolite H–Y Investigated by in Situ MAS NMR Spectroscopy

2001 ◽  
Vol 203 (2) ◽  
pp. 375-381 ◽  
Author(s):  
Irina I Ivanova ◽  
Elena B Pomakhina ◽  
Alexander I Rebrov ◽  
Michael Hunger ◽  
Yuryi G Kolyagin ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Mas Nmr ◽  
Surface Species

Investigating Sorption on Iron−Oxyhydroxide Soil Minerals by Solid-State NMR Spectroscopy:  A6Li MAS NMR Study of Adsorption and Absorption on Goethite

2005 ◽  
Vol 109 (39) ◽  
pp. 18310-18315 ◽  
Author(s):  
Ulla Gro Nielsen ◽  
Younkee Paik ◽  
Keinia Julmis ◽  
Martin A. A. Schoonen ◽  
Richard J. Reeder ◽  
...  
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Solid State Nmr ◽  
Mas Nmr ◽  
Iron Oxyhydroxide ◽  
Soil Minerals ◽  
Solid State Nmr Spectroscopy ◽  
Nmr Study

Structural Characterization of Glass from the Inversion of23Na and27Al 3Q-MAS NMR Spectra

1999 ◽  
Vol 103 (47) ◽  
pp. 10356-10364 ◽  
Author(s):  
F. Angeli ◽  
T. Charpentier ◽  
P. Faucon ◽  
J.-C. Petit
Keyword(s):  
Structural Characterization ◽  
Nmr Spectra ◽  
Mas Nmr
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