Ethanol enhances collective dynamics of lipid membranes

Download
  1. Get@NRC: Ethanol enhances collective dynamics of lipid membranes (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1103/PhysRevE.83.050907
AuthorSearch for: ; Search for: ; Search for: ; Search for: ; Search for:
TypeArticle
Journal titlePhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
ISSN1539-3755
Volume83
Issue5
Article number50907
SubjectAdditional mode; Bi-layer; Collective dynamics; Fluid-phase; Lipid membranes; Low energies; Molecular dynamics simulations; Molecular motions; Transverse properties; Dispersions; Ethanol; Molecular dynamics
AbstractFrom inelastic neutron-scattering experiments and all atom molecular dynamics simulations we present evidence for a low-energy dynamical mode in the fluid phase of a 1,2-dimyristoyl-sn-glycero-3-phoshatidylcholine (DMPC) bilayer immersed in a 5% water/ethanol solution. In addition to the well-known phonon that shows a liquidlike dispersion with energies up to 4.5 meV, we observe an additional mode at smaller energies of 0.8 meV, which shows little or no dispersion. Both modes show transverse properties and might be related to molecular motion perpendicular to the bilayer. © 2011 American Physical Society.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Canadian Neutron Beam Centre (CNBC-CCFN)
Peer reviewedYes
NPARC number21271579
Export citationExport as RIS
Report a correctionReport a correction
Record identifierda7813fc-b922-4a66-8d05-d88f628bed46
Record created2014-03-24
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)