Fluorocarbon surfactant/water mesomorphic phases. Part 4.—Study of the distribution of alkyl chain mobilities in the lamellar phase of the sodium 12,12,13,13,14,14,14-heptafluoromyristate/D2O system by 19F and 1H spin echo nuclear magnetic resonance

1972 ◽  
Vol 68 (0) ◽  
pp. 670 ◽  
Author(s):  
G. J. T. Tiddy
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Alkyl Chain ◽  
Spin Echo ◽  
Lamellar Phase ◽  
Fluorocarbon Surfactant ◽  
Nuclear Magnetic

Nuclear magnetic resonance hahn spin-echo decay (T2) in live rats with endotoxin lung injury

1993 ◽  
Vol 29 (4) ◽  
pp. 441-445 ◽  
Author(s):  
Sumie Shioya ◽  
Rebecca Christman ◽  
David C. Ailion ◽  
Antonio G. Cutillo ◽  
K. Craig Goodrich
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Lung Injury ◽  
Spin Echo ◽  
Nuclear Magnetic

scholarly journals Correlations between Proton Nuclear Magnetic Resonance Imaging and Retrospective Histochemical Images in Experimental Cerebral Infarction

1985 ◽  
Vol 5 (2) ◽  
pp. 267-274 ◽  
Author(s):  
Hiroyuki Kato ◽  
Kyuya Kogure ◽  
Hitoshi Ohtomo ◽  
Muneshige Tobita ◽  
Shigeru Matsui ◽  
...  
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Spin Echo ◽  
Proton Nuclear Magnetic Resonance ◽  
Nmr Imaging ◽  
Resonance Imaging ◽  
H Nmr ◽  
Experimental Cerebral Infarction ◽  
Nuclear Magnetic

Evaluation of ischemic brain injury in experimental cerebral infarction in gerbils and rats was performed by means of both proton nuclear magnetic resonance imaging ([1H]NMR-CT) and various histochemical analyses. In vivo nuclear magnetic resonance (NMR) imaging was carried out employing saturation recovery, inversion recovery, and spin echo pulse sequences. Spatial resolution of the images was excellent. The ischemic lesions were detected with a remarkable contrast in inversion recovery and spin echo images within a few hours after insult. Those changes in NMR images consistently corresponded with the various retrospective histochemical observations, especially with methods related to brain edema (K+ staining) rather than structural (enzymatic) studies. Calculated T1 and T2 relaxation times indicated the evolution of the edema state in the brain in situ. They correlated excellently with the retrospective water content measurement. As a result, detailed characterization of the edema state induced by cerebral ischemia was possible in vivo using [1H]NMR imaging.

Solute 13C Nuclear Magnetic Resonance Spectrometric Investigation of Acetonitrile-Tetraalkylammonium Salt Interactions

1983 ◽  
Vol 37 (1) ◽  
pp. 29-31
Author(s):  
Neal R. Dando ◽  
Harvey S. Gold ◽  
Cecil Dybowski
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Salt Concentration ◽  
Alkyl Chain ◽  
Lattice Relaxation ◽  
Lattice Relaxation Time ◽  
Spin Lattice Relaxation ◽  
Spin Lattice ◽  
13C Nuclear Magnetic Resonance ◽  
Nuclear Magnetic

Carbon-13 nuclear magnetic resonance spectrometry is used to observe changes in the spin-lattice relaxation time ( T1) of the alkyl chain carbons of symmetric tetraalkylammonium salts ( R4N+) X− in acetonitrile as a function of salt concentration in the range from 0.25 to 1.4 M. The T1 values of the alkyl chain carbons are observed to be differentially sensitive to salt concentration, the sensitivity being greatest at the α carbon position. These observations suggest accessibility of the cation nitrogen to solvent molecules and changing microviscosity about the salt molecule.

Spin echo nuclear magnetic resonance in cancerous tissue

1972 ◽  
Vol 8 (3) ◽  
pp. 415-415 ◽  
Author(s):  
N. Iijima ◽  
Y. Yoshida ◽  
N. Fujii ◽  
T. Koike ◽  
K. Osanai ◽  
...  
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Spin Echo ◽  
Cancerous Tissue ◽  
Nuclear Magnetic
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