论文标题
部分可观测时空混沌系统的无模型预测
Landau theory and self-assembly of spherical nanoclusters and nanoparticles with octahedral symmetry
论文作者
论文摘要
球形纳米簇和纳米颗粒正在上升的材料，其功能设计提供了许多有用的应用，从催化，分子传感，气体储存到药物靶向和递送。在这里，我们开发了具有八面体对称性O和O_H的这种球形结构的现象学结晶理论。在开发的理论中，我们提出了一种方法，该方法基于构建不可约合的八面体密度函数，并允许预测球形纳米对象中结构单元的位置。提出的理论解释了最简单的金属纳米簇的结构，某些金属有机的多面体和膜蛋白蛋白质多面体纳米颗粒，还可以预测更复杂的手性手性球形结构以及以半几何形状为特征的半几何形状。还讨论了通过将平面六边形序列映射到球形表面，通过八面体净映射到球形表面之间的关系。
Spherical nanoclusters and nanoparticles are rising materials whose functional design provides many useful applications ranging from catalysis, molecular sensing, gas storage to drug targeting and delivery. Here, we develop phenomenological crystallization theory of such spherical structures with octahedral symmetries O and O_h. Within the developed theory, we propose a method, which is based on constructing irreducible octahedral density functions and allows to predict the positions of structural units in the spherical nanoobjects. The proposed theory explains the structures of the simplest known metal nanoclusters, some metal-organic polyhedra and membrane protein polyhedral nanoparticles, and also predicts more complex chiral spherical structures and achiral assemblies characterized by the geometry of semiregular polyhedra. A relationship between the constructed irreducible octahedral functions and spherical lattices, obtained by mapping a plane hexagonal order onto a spherical surface through an octahedron net, is discussed as well.
