Molecular motion at the critical point in lipid membranes

Harden McConnell, Arun Radhakrishnan

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

It is shown that the calculated temperature dependence of the deuterium nuclear magnetic resonance (NMR) of labeled cholesterol-phospholipid bilayers is changed by magic-angle spinning. This makes it possible to distinguish different molecular motions at temperatures near a miscibility critical point, for motions with distinct temperature-dependent correlation times. In this way one finds that NMR line broadening due to critical point composition fluctuations can be distinguished from broadening due to the formation and dissociation of complexes.

Original languageEnglish (US)
JournalBiophysical Journal
Volume95
Issue number2
DOIs
StatePublished - Jul 15 2008

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Membrane Lipids
Temperature
Magnetic Resonance Spectroscopy
Deuterium
Phospholipids
Cholesterol

ASJC Scopus subject areas

  • Biophysics

Cite this

Molecular motion at the critical point in lipid membranes. / McConnell, Harden; Radhakrishnan, Arun.

In: Biophysical Journal, Vol. 95, No. 2, 15.07.2008.

Research output: Contribution to journalArticle

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