Transport Dynamics of Water Molecules Confined between Lipid Membranes

• DOI: 10.48550/arxiv.2401.13253
• Publication Date: 2024-01-01
• Authors: Minho Lee; Euihyun Lee; Ji Hyun Kim; Hyonseok Hwang; Minhaeng Cho; Jaeyoung Sung
• Keywords: Intermembrane space; Dynamics; Water Transport; Properties of water; Mean squared displacement; Confined water

Water molecules confined between biological membranes exhibit a distinctive non-Gaussian displacement distribution, far different from bulk water. Here, we introduce new transport equation for water in the intermembrane space, quantitatively explaining molecular dynamics simulation results. We find unique of stems lateral diffusion coefficient fluctuation caused by their longitudinal motion. also identify an interfacial region where possesses distinct physical properties, unaffected changes separation.