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100 | 1 | _ | |a Jaksch, Sebastian |0 P:(DE-Juel1)157910 |b 0 |e Corresponding author |
245 | _ | _ | |a Influence of NaCl on the Structure and Dynamics of Phospholipid Layers |
260 | _ | _ | |a Lausanne |c 2021 |b Frontiers Media |
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520 | _ | _ | |a We present a structural and dynamical analysis of the influence of NaCl on multilayer stacks of phospholipids on a solid surface. To this end, multilayer stacks of phospholipids (L-α-phosphatidylcholine, abbreviated as SoyPC) are investigated with neutron reflectometry, grazing-incidence small-angle neutron scattering (GISANS) and grazing-incidence neutron-spin echo spectroscopy (GINSES). We show both that the NaCl influence on the structure is predominantly on water-head group interface and also, that the change in dynamics is restricted to an associated change in the inter-plane viscosity. Using this knowledge, it is possible to model the dynamical behavior of a phospholipid membrane in response to a salt concentration of the solvent using only a single parameter, namely the in-plane viscosity. The excellent agreement with our previously published model also strongly supports the existence of a thermally excited surface mode in phospholipid membranes for close-to-physiological conditions. |
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700 | 1 | _ | |a Müller-Buschbaum, Peter |0 P:(DE-HGF)0 |b 7 |
773 | _ | _ | |a 10.3389/fphy.2021.628219 |g Vol. 9, p. 628219 |0 PERI:(DE-600)2721033-9 |p 628219 |t Frontiers in physics |v 9 |y 2021 |x 2296-424X |
856 | 4 | _ | |u https://juser.fz-juelich.de/record/893252/files/fphy-09-628219.pdf |y OpenAccess |
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