Structural Properties of Docosahexaenoyl Phospholipid Bilayers Investigated by Solid-State <sup>2</sup>H NMR Spectroscopy
作者:Horia I. Petrache、Amir Salmon、Michael F. Brown
DOI:10.1021/ja011745n
日期:2001.12.19
the lipid bilayer. The present research has employed solid-state 2HNMRspectroscopy to acquire knowledge of the molecular organization and material properties of polyunsaturated lipid bilayers. We report measurements for a homologous series of mixed-chain phosphatidylcholines containing a perdeuterated, saturated acyl chain (n:0) at the sn-1 position, adjacent to docosahexaenoic acid (DHA, 22:6omega3)
Elastic Deformation of Membrane Bilayers Probed by Deuterium NMR Relaxation
作者:Michael F. Brown、Robin L. Thurmond、Steven W. Dodd、Dörte Otten、Klaus Beyer
DOI:10.1021/ja012660p
日期:2002.7.1
can be used as a simple membrane elastometer. Heuristic estimates of the bilayer bending rigidity kappa and the area elastic modulus K(a) enable comparison to other biophysical studies, involving macroscopic deformation of thin membrane lipid films. Finally, the bilayer softness may be correlated with the lipid diversity of biomembranes, for example, with regard to membrane curvature, repulsive interactions