论文标题
胶体相互作用和异常的结晶与通过金黄色形成的弹性多孔的去混合
Colloidal interactions and unusual crystallization versus de-mixing of elastic multipoles formed by gold mesoflowers
论文作者
论文摘要
列液晶中的胶体相互作用可以描述为依赖粒子形状，拓扑，手性，边界条件和诱导拓扑缺陷的弹性多物之间的相互作用。在这里，我们描述了一个列胶体系统，该胶体系统由能够诱导不同顺序的弹性多物的黄金的介质结构组成。弹性单极是由相对较大的不对称的中植物颗粒形成的，为此，重力和弹性扭矩平衡产生单极型相互作用。而是由较小的中流人形成的高阶多物，其形状无数，与不同阶的多物相对应，这与基于自由能最小化的计算机模拟一致。我们揭示了该胶体系统中意外的多体相互作用，从弹性单翼的脱混混合到由高阶多物（如六边形）形成的不寻常胶体晶体的动物园。我们的发现表明，黄金中流可以作为工程胶体相互作用和自组装的设计师工具包，可能超过原子和分子系统。
Colloidal interactions in nematic liquid crystals can be described as interactions between elastic multipoles that depend on particle shape, topology, chirality, boundary conditions and induced topological defects. Here, we describe a nematic colloidal system consisting of mesostructures of gold capable of inducing elastic multipoles of different order. Elastic monopoles are formed by relatively large asymmetric mesoflower particles, for which gravity and elastic torque balancing yields monopole-type interactions. High-order multipoles are instead formed by smaller mesoflowers with a myriad of shapes corresponding to multipoles of different orders, consistent with our computer simulations based on free energy minimization. We reveal unexpected many-body interactions in this colloidal system, ranging from de-mixing of elastic monopoles to a zoo of unusual colloidal crystals formed by high-order multipoles like hexadecapoles. Our findings show that gold mesoflowers may serve as a designer toolkit for engineering colloidal interaction and self-assembly, potentially exceeding that in atomic and molecular systems.
