title: In-plane correlations in a polymer-supported lipid membrane measured by off-specular neutron scattering.
abstract: Polymer-supported single lipid bilayers are models to study configurations of cell membranes. We used off-specular neutron scattering to quantify in-plane height-height correlations of interfacial fluctuations of such a lipid bilayer. As temperature decreased from 37 °C to 25 °C, the polymer swells and the polymer-supported lipid membrane deviates from its initially nearly planar structure. A correlation length characteristic of capillary waves changes from 30 μm at 37 °C to 11 μm at 25 °C, while the membrane bending rigidity remains roughly constant in this temperature range.
authors.affiliation: Lujan Neutron Scattering Center, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
authors.forename: Michael S
authors.initials: MS
authors.lastname: Jablin
authors.forename: Mikhail
authors.initials: M
authors.lastname: Zhernenkov
authors.forename: Boris P
authors.initials: BP
authors.lastname: Toperverg
authors.forename: Manish
authors.initials: M
authors.lastname: Dubey
authors.forename: Hillary L
authors.initials: HL
authors.lastname: Smith
authors.forename: Ajay
authors.initials: A
authors.lastname: Vidyasagar
authors.forename: Ryan
authors.initials: R
authors.lastname: Toomey
authors.forename: Alan J
authors.initials: AJ
authors.lastname: Hurd
authors.forename: Jaroslaw
authors.initials: J
authors.lastname: Majewski
mesh_terms: D002462:Cell Membrane / Q000737:chemistry*; D008051:Lipid Bilayers / Q000737:chemistry*; D033363:Neutron Diffraction; D011108:Polymers / Q000737:chemistry*; D013696:Temperature
chemical_list: D008051:Lipid Bilayers; D011108:Polymers