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Transport Dynamics of Water Molecules Confined between Lipid Membranes

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Title
Transport Dynamics of Water Molecules Confined between Lipid Membranes
Author(s)
Lee, Minho; Lee, Euihyun; Kim, Ji-Hyun; Hwang, Hyonseok; Minhaeng Cho; Sung, Jaeyoung
Publication Date
2024-04
Journal
The Journal of Physical Chemistry Letters, v.15, no.16, pp.4437 - 4443
Publisher
American Chemical Society
Abstract
Water molecules confined between biological membranes exhibit a distinctive non-Gaussian displacement distribution, far different from that of bulk water. Here, we introduce a new transport equation for water molecules in the intermembrane space, quantitatively explaining molecular dynamics simulation results. We find that the unique transport dynamics of water molecules stems from the lateral diffusion coefficient fluctuation caused by their longitudinal motion in the direction perpendicular to the membranes. We also identify an interfacial region where water possesses distinct physical properties, which is unaffected by changes in the intermembrane separation.
URI
https://pr.ibs.re.kr/handle/8788114/15130
DOI
10.1021/acs.jpclett.4c00323
ISSN
1948-7185
Appears in Collections:
Center for Molecular Spectroscopy and Dynamics(분자 분광학 및 동력학 연구단) > 1. Journal Papers (저널논문)
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