Scholz F, Boroske E, Helfrich W
Biophys J. 1984 Mar;45(3):589-92. doi: 10.1016/S0006-3495(84)84196-X.
Cylindrical giant vesicles prepared from egg lecithin and 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) are oriented in an external magnetic field and observed by phase contrast microscopy. The anisotropic part of the diamagnetic susceptibility of the lecithin membrane is determined from the distribution of angles between the magnetic field and the long cylinder axis due to thermal fluctuations. The anisotropy of DMPC is found to be larger by a factor of 2 than that of egg lecithin. This is attributed to the presence of unsaturated acyl chains in egg lecithin.
由蛋黄卵磷脂和1,2 - 二肉豆蔻酰 - sn - 甘油 - 3 - 磷酸胆碱（DMPC）制备的圆柱形巨型囊泡在外部磁场中定向，并通过相差显微镜进行观察。卵磷脂膜抗磁磁化率的各向异性部分由热涨落导致的磁场与长圆柱轴之间角度的分布来确定。发现DMPC的各向异性比蛋黄卵磷脂的大2倍。这归因于蛋黄卵磷脂中存在不饱和酰基链。
