Molecular Design Institute, Department of Chemistry, New York University, New York, NY, 10003, USA.
Department of Physics, Center for Soft Matter Research, New York University, New York, NY, 10003, USA.
Angew Chem Int Ed Engl. 2021 Mar 8;60(11):5744-5748. doi: 10.1002/anie.202014045. Epub 2021 Feb 1.
This contribution describes the synthesis of colloidal di-patch particles functionalized with DNA on the patches and their assembly into colloidal superstructures via cooperative depletion and DNA-mediated interactions. The assembly into flower-like Kagome, brick-wall like monolayer, orthogonal packed single or double layers, wrinkled monolayer, and colloidal honeycomb superstructures can be controlled by tuning the particles' patch sizes and assembly conditions. Based on these experimental results, we generate an empirical phase diagram. The principles revealed by the phase diagram provide guidance in the design of two-dimensional (2D) materials with desired superstructures. Our strategy might be translatable to the assembly of three-dimensional (3D) colloidal structures.
本贡献描述了在胶体二斑块颗粒上通过协同耗尽和 DNA 介导的相互作用功能化 DNA 的胶体超结构的组装。通过调整颗粒的斑块大小和组装条件，可以控制组装成花状 Kagome、砖壁状单层、正交堆积的单层或双层、褶皱单层和胶体蜂窝状超结构。基于这些实验结果，我们生成了一个经验相图。相图揭示的原理为设计具有所需超结构的二维（2D）材料提供了指导。我们的策略可能适用于三维（3D）胶体结构的组装。
