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Next Record
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| Title: |
NMR of laser-polarized 129Xe in blood foam
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| Author(s): |
Tseng, C. H.; Peled, S.; Nascimben, L.; Oteiza, E.; Walsworth, R. L.; Jolesz, F. A.
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| Abstract: |
Laser-polarized 129Xe dissolved in a foam preparation of fresh human blood was investigated. The NMR signal of 129Xe dissolved in blood was enhanced by creating a foam in which the dissolved 129Xe exchanged with a large reservoir of gaseous laser-polarized 129Xe. The dissolved 129Xe T1 in this system was found to be significantly shorter in oxygenated blood than in deoxygenated blood. The T1 of 129Xe dissolved in oxygenated blood foam was found to be approximately 21 (/-5) s, and in deoxygenated blood foam to be greater than 40 s. To understand the oxygenation trend, T1 measurements were also made on plasma and hemoglobin foam preparations. The measurement technique using a foam gas-liquid exchange interface may also be useful for studying foam coarsening and other liquid physical properties.
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| NASA Center: |
NASA (non Center Specific)
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| Publication Date: |
May 1997
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| Document Source: |
Other Sources |
| No Digital Version Available: |
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| Document ID: |
20040172971
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| Publication Information: |
Journal of magnetic resonance (San Diego, Calif. : 1997), Volume 126, 1, 79-86, ISSN 1090-7807 |
| Keywords: |
BLOOD; FOAMS; LASERS; MAGNETIC RESONANCE SPECTROSCOPY; NUCLEAR MAGNETIC RESONANCE; XENON ISOTOPES; NASA Discipline Environmental Health; Non-NASA Center; ALBUMINS; CATTLE; CELL MEMBRANES (BIOLOGY); ERYTHROCYTES; HEMOGLOBIN; OXYGEN;
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| Accessibility: |
Unclassified; Copyright; Unlimited; Publicly available; |
| Updated/Added to NTRS: |
2006-08-02 |
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