@article{oai:nagoya.repo.nii.ac.jp:00027945, author = {Andoh, Yoshimichi and Kitou, Sakiho and Okazaki, Susumu}, journal = {Journal of Molecular Liquids}, month = {Dec}, note = {We investigated how nonionic surfactants (1-dodecanol, dodecyl methyl ester, and dodecanoic acid) and zwitterionic surfactants (N,N-dimethyldodecylamine N-oxide, and 1-lauroyl-2-hydroxy-sn-glycero-3-phosphatidylcholine) change the physicochemical properties of 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) lipid bilayers in the liquid crystalline phase. The surfactants have a hydrophilic head group and hydrophobic saturated alkyl chain with 12 carbons long in common. A series of 100-ns-long all-atomistic molecular dynamics calculations were performed for fully hydrated binary lipid bilayers composed of DMPC and 33 mol% surfactant under isothermal–isobaric condition (T = 303.15 K, and P = 1 atm). All nonionic surfactants considered here induced structural ordering of DMPC lipid bilayers, as we reported in a previous paper on DMPC/ethylene-glycol-ether binary bilayers. In particular, the degree of the ordering was highest for dodecanoic acid, followed by 1-dodecanol and dodecyl methyl ester. Both of the zwitterionic surfactants induced structural disordering of the DMPC lipid bilayers. We have clarified the different molecular mechanisms that govern changes in membrane properties induced by nonionic and zwitterionic surfactants., ファイル公開:2020-12-01}, pages = {933--941}, title = {Difference in molecular mechanisms governing changes in membrane properties of phospholipid bilayers induced by addition of nonionic and zwitterionic surfactants}, volume = {271}, year = {2018} }