Altig J A, Wesenberg G E, Vaughan W E
Biophys Chem. 1986 Aug;24(3):221-34. doi: 10.1016/0301-4622(86)85028-1.
The equilibrium Kerr effect of a system of mobile charges constrained to the surface of biomacromolecules is calculated. Cylindrical and spherical geometries are considered. For the cylinder we determine the anisotropy of electric polarizability as a function of length, temperature, and number of charged species in the low-field regime, and the fraction of the maximum induced dipole in the field direction for higher electric fields. The results are compared to experimental data for DNA oligomers taken from the literature. With spherical geometry we calculate the fractional induced dipole moment as a function of electric field strength and from this deduce the orientation function. The field dependence of the orientation function is compared to experimental data in the literature for bovine disk membrane vesicles.
计算了限制在生物大分子表面的移动电荷系统的平衡克尔效应。考虑了圆柱和球形几何形状。对于圆柱体，我们确定了低场区域中电极化率的各向异性作为长度、温度和带电物种数量的函数，以及更高电场下在场方向上最大感应偶极子的分数。将结果与从文献中获取的DNA寡聚物的实验数据进行了比较。对于球形几何形状，我们计算了分数感应偶极矩作为电场强度的函数，并据此推导出取向函数。将取向函数的场依赖性与文献中牛盘膜囊泡的实验数据进行了比较。
