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. 1976 Nov;73(11):3812–3815. doi: 10.1073/pnas.73.11.3812

Nuclear magnetic resonance description of molecular motion and phase separations of cholesterol in lecithin dispersions.

S J Opella, J P Yesinowski, J S Waugh
PMCID: PMC431220  PMID: 1069266

Abstract

Proton-enhanced 13C nuclear magnetic resonance is used to obtain signals from labeled cholesterols in lecithin dispersions. The [26-(13)C]cholesterol resonance indicates that the aliphatic tail of the molecule undergoes reorientation fast enough to average completely the chemical shift anisotropy. In contrast, [4-(13)C]cholesterol signals are characteristic of limited anisotropic reorientation. The resonances from the 4 position are sensitive to the temperature-concentration phase diagram. A phase boundary is observed at about 20 mole percent cholesterol.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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