MNM-5A-4 脂質二重膜の熱輸送特性に対するアルキル鎖界面の影響(セッション 5A ナノ・マイクロ異相界面センシングと制御)

概要

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Nonequilibrium molecular dynamics simulations are carried out on single component lipid bilayer membranes with ambient water in order to elucidate influence of alkyl chain length on characteristics of heat transfer along and across the membranes. It was found that thermal conductivity along membrane corresponds with that of each membrane despite different lipid species. On the other hand, in the direction perpendicular to the membrane, the highest thermal resistance exists at the center of lipid bilayer where lipid acyl chains face each other. However, asymmetric chain length increases interface thermal conductance at the center of lipid bilayer compared with symmetric chain length. Thereby, overall thermal conductivity of across the membrane which consists of asymmetric chain length is higher than that which consists of symmetric chain length.
2010-10-12