Elastic scattering studies of aligned DMPC multilayers on different hydrations

Authors

Marcus Trapp, Institut de Biologie Structurale, France
Fanni Juranyi, LNS, ETH Zurich
Moeava Tehei, University of WollogongFollow
Lambert van Eijck, Institut Laue Langevin, France
Bruno Demé, Institut Laue Langevin, France
Thomas Gutberlet, JCNS at FRMII, Germany
Judith Peters, Australian Institute of Nuclear Science and Engineering (AINSE), Menai

RIS ID

33216

Publication Details

Trapp, M, Juranyi, F, Tehei, M, van Eijck, L, Demé, B, Gutberlet, T and Peters, J, Elastic scattering studies of aligned DMPC multilayers on different hydrations, Spectroscopy: An International Journal, 24(5), 2010, 461-466. Copyright ISO Press 2010. Original item available here

Abstract

Biological membranes, consisting mainly of phospholipids and proteins, are organized in a bilayered structure which exhibits dynamical behaviour within time regimes ranging from 10-12 s with the motion of alkyl chain defects and 1 s corresponding to collective excitations of the bilayer [1]. With the prominent role hydration plays on the structural phase behaviour of phospholipids membranes, it is essential for a better description of membranes to understand also the influence of hydration on the dynamics of membrane systems. In the present study we have performed neutron scattering investigations on highly oriented DMPC-d54 multilayers at two different relative humidity (rh) levels. Our results reveal the strong influence of hydration on the local membrane dynamics i.e. head group dynamics.