TY - JOUR A1 - Jeon, Jae-Hyung A1 - Monne, Hector Martinez-Seara A1 - Javanainen, Matti A1 - Metzler, Ralf T1 - Anomalous diffusion of phospholipids and cholesterols in a lipid bilayer and its origins JF - Physical review letters N2 - Combining extensive molecular dynamics simulations of lipid bilayer systems of varying chemical compositions with single-trajectory analyses, we systematically elucidate the stochastic nature of the lipid motion. We observe subdiffusion over more than 4 orders of magnitude in time, clearly stretching into the submicrosecond domain. The lipid motion depends on the lipid chemistry, the lipid phase, and especially the presence of cholesterol. We demonstrate that fractional Langevin equation motion universally describes the lipid motion in all phases, including the gel phase, and in the presence of cholesterol. The results underline the relevance of anomalous diffusion in lipid bilayers and the strong effects of the membrane composition. Y1 - 2012 U6 - https://doi.org/10.1103/PhysRevLett.109.188103 SN - 0031-9007 VL - 109 IS - 18 PB - American Physical Society CY - College Park ER -