ISIS Neutron and Muon Source Data Journal

Dynamics of purely coherent tail-tail correlation in lipid bilayers

Abstract: Lipid molecules are a basic building block for biological membranes. We have studied the collective membrane fluctuations by neutron spin echo and extracted bending and area compressibility moduli and membrane viscosity. The latter is one of two important parameters to characterize transport properties in membranes. The other important parameter, the molecular diffusion constant, was measured by us using neutron backscattering. Interestingly we observe that the temperature and molecular size dependence of the viscosity and diffusion constant are different, despite expecting them to both be dictated by the same frictional force. To understanding the differences we would like to measure the dynamics of the lipid tail-tail correlations as a main source of friction comes from the lipid packing. As the signal is weak and purely coherent, we need LET with polarized neutron option.

Principal Investigator: Dr Michihiro Nagao
Experimenter: Dr Antonio Faraone
Experimenter: Dr Ross Stewart
Local Contact: Dr Gøran Nilsen
Experimenter: Dr Liz Kelley
Experimenter: Dr Victoria Garcia Sakai

DOI: 10.5286/ISIS.E.RB2010624

ISIS Experiment Number: RB2010624

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Michihiro Nagao et al; (2021): Dynamics of purely coherent tail-tail correlation in lipid bilayers, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2010624

Data is released under the CC-BY-4.0 license.