Park Sungho, Lim Jung-Hyurk, Chung Sung-Wook, Mirkin Chad A
Department of Chemistry and Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113, USA.
Science. 2004 Jan 16;303(5656):348-51. doi: 10.1126/science.1093276.
The assembly properties of two- and three-component rod-like building blocks consisting of gold and polymer block domains have been investigated. These structures behave like mesoscopic amphiphiles and form a series of single-layer superstructures consisting of bundles, tubes, and sheets depending upon the compositional periodicity. Unlike molecular systems, the template used to initially synthesize them plays a critical role in the assembly process by prealigning them in a manner that facilitates their assembly by optimizing the correct collisional orientation upon dissolution of the template. Tubular structures with tailorable diameters can be assembled in a predictable manner on the basis of an estimate of the hybrid rod packing parameters.
对由金和聚合物嵌段域组成的二元和三元棒状结构单元的组装特性进行了研究。这些结构表现得像介观两亲物，并根据组成周期性形成一系列由束、管和片组成的单层超结构。与分子体系不同，最初用于合成它们的模板在组装过程中起着关键作用，通过以一种促进组装的方式预先排列它们，即在模板溶解时通过优化正确的碰撞取向来实现。基于混合棒堆积参数的估计，可以以可预测的方式组装具有可定制直径的管状结构。
