Ethanol enhances collective dynamics of lipid membranes.
Phys Rev E Stat Nonlin Soft Matter Phys
; 83(5 Pt 1): 050907, 2011 May.
Article
en En
| MEDLINE
| ID: mdl-21728483
From 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.
Buscar en Google
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Membrana Celular
/
Etanol
/
Simulación de Dinámica Molecular
/
Membrana Dobles de Lípidos
Idioma:
En
Revista:
Phys Rev E Stat Nonlin Soft Matter Phys
Asunto de la revista:
BIOFISICA
/
FISIOLOGIA
Año:
2011
Tipo del documento:
Article
País de afiliación:
Canadá
Pais de publicación:
Estados Unidos