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Updated: May 25, 2026

Neutron Spin Echo Spectroscopy as a Unique Probe for Lipid Membrane Dynamics and Membrane-Protein Interactions
Published on: May 27, 2021
In-plane dynamics of membranes with immobile inclusions
Naomi Oppenheimer1, Haim Diamant
1Raymond & Beverly Sackler School of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel. naomiopp@tau.ac.il
Abstract:
Cell membranes are anchored to the cytoskeleton via immobile inclusions. We investigate the effect of such anchors on the in-plane dynamics of a fluid membrane and mobile inclusions (proteins) embedded in it. The immobile particles lead to a decreased diffusion coefficient of mobile ones and suppress the correlated diffusion of particle pairs. Because of the long-range, quasi-two-dimensional nature of membrane flows, these effects become significant at a low area fraction (below 1%) of immobile inclusions.
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