We have studied the H-bonded dynamics in highly oriented lamellar DOTAP-DOPC model membranes as a function of the DOPC/(DOPC+DOTAP) ratio f; by elastic incoherent neutron scatteringin the 100 ps time domain on the spectrometer IN13 at ILL. Motions in the in-plane and out-of plane directions have been explored by orientingthe momentum transfer predominantly parallel and normal to the surface of highly oriented multilayers, respectively. Increasingthe neutral lipid (DOPC) concentration from f ¼ 0:520:8 we reveal a reduction of the dynamics alongthe direction normal to the membrane and an unchanged dynamics on the membrane plane.
Dynamical properties of oriented lipid membranes studied by elastic incoherent neutron scattering
2004
Abstract
We have studied the H-bonded dynamics in highly oriented lamellar DOTAP-DOPC model membranes as a function of the DOPC/(DOPC+DOTAP) ratio f; by elastic incoherent neutron scatteringin the 100 ps time domain on the spectrometer IN13 at ILL. Motions in the in-plane and out-of plane directions have been explored by orientingthe momentum transfer predominantly parallel and normal to the surface of highly oriented multilayers, respectively. Increasingthe neutral lipid (DOPC) concentration from f ¼ 0:520:8 we reveal a reduction of the dynamics alongthe direction normal to the membrane and an unchanged dynamics on the membrane plane.File in questo prodotto:
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