论文标题
柱状溶式染色体液晶的环形核与各向同性相共存
Toroidal nuclei of columnar lyotropic chromonic liquid crystals coexisting with isotropic phase
论文作者
论文摘要
从各向同性状态出现的有序材料的核通常显示出拓扑等效的形状。众所周知的例子是晶体和夜间液晶液滴。在这项工作中，我们从实验和理论上探索了柱状溶式染色体液晶的核与各向同性相的形状共存。环形的几何形状在很大程度上取决于人拥挤剂聚乙烯乙二醇的分子浓度和存在。高浓度会导致厚的环形孔，中央孔很小，而低浓度产生较薄的环形孔。观察到的众多形状是通过弯曲弹性和各向异性界面张力的平衡来解释的。
Nuclei of ordered materials emerging from the isotropic state usually show a shape topologically equivalent to a sphere; the well-known examples are crystals and nematic liquid crystal droplets. In this work, we explore experimentally and theoretically the nuclei of columnar lyotropic chromonic liquid crystal coexisting with the isotropic phase that are toroidal in shape. The geometry of toroids depends strongly on the molecular concentrations and presence of a crowding agent, polyethylene glycol. High concentrations result in thick toroids with small central holes, while low concentrations yield thin toroids with wide holes. The multitude of the observed shapes is explained by the balance of bending elasticity and anisotropic interfacial tension.
