Abstract:
:The orientational order as determined by 2H NMR and the infrared frequencies of the C--H stretching modes of the methylene groups have been measured for several systems (POPC, POPC/cholesterol and POPE), all in the fluid phase, and then were compared; this work reveals an unexpected linear correlation between them. This experimental result shows that both measurements are essentially sensitive to a common motion, most likely trans/gauche isomerisation. This new correlation with those already found in the literature suggest that several measurements related to the hydrophobic core of the fluid bilayer describe different aspects of a universal behavior. The correlation presented here does not extend to the lipid in gel phase where slower motions affect the NMR lineshape.
journal_name
Biophys Jjournal_title
Biophysical journalauthors
Kodati VR,Lafleur Mdoi
10.1016/S0006-3495(93)81351-1subject
Has Abstractpub_date
1993-01-01 00:00:00pages
163-70issue
1eissn
0006-3495issn
1542-0086pii
S0006-3495(93)81351-1journal_volume
64pub_type
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