# Comment on: "Dynamics of Phospholipid Membranes beyond Thermal Undulations"

## TL;DR

This paper offers an alternative explanation for short-time anomalous diffusion in phospholipid membranes, linking it to membrane thickness fluctuations and the Brochard-Lennon mode, aligning with experimental data.

## Contribution

It introduces a new interpretation of membrane dynamics involving the Brochard-Lennon mode, providing a theoretical framework consistent with neutron spin echo observations.

## Key findings

- Anomalous diffusion exponent of 1/3 matches experimental results.
- Membrane thickness fluctuations can explain short-time anomalous diffusion.
- Alternative interpretation challenges previous models.

## Abstract

I introduce an alternative interpretation for the short-time anomalous diffusion observed by Gupta et al. using neutron spin echo. The interpretation involves the Brochard-Lennon "red blood cell" mode to describe membrane thickness fluctuations, and yields an anomalous diffusion exponent 1/3 that is consistent with the experimental results.

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Source: https://tomesphere.com/paper/1904.12722