School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China.
Soft Matter. 2018 Oct 10;14(39):7954-7957. doi: 10.1039/c8sm01652f.
Non-spherical colloidal particles, as basic building blocks, exhibit special capability in constructing novel materials. In this work, red blood cell (RBC)-like, anisotropic particles were synthesized and the self-assembly of the RBC-like particles was then carried out at the air-water interface. Subsequently, multilayer 3D structured colloidal crystals were also fabricated. The as-prepared colloidal crystal film displays beautiful Bragg diffraction, which can be used to construct a photonic crystal. After that, the self-assembly of binary colloidal particles was explored to design well-patterned binary colloidal crystals. This facile self-assembly approach to prepare colloidal crystals may extend to other anisotropic building blocks, providing guidance for the fabrication of more complex and flexible materials.
非球形胶体颗粒作为基本构建单元，在构建新型材料方面表现出特殊的能力。在这项工作中，合成了类似红细胞（RBC）的各向异性颗粒，并在气-液界面上进行了 RBC 样颗粒的自组装。随后，还制备了多层 3D 结构胶体晶体。所制备的胶体晶体膜显示出美丽的布拉格衍射，可用于构建光子晶体。之后，还探索了二元胶体颗粒的自组装以设计图案化的二元胶体晶体。这种制备胶体晶体的简单自组装方法可以扩展到其他各向异性构建块，为更复杂和灵活材料的制备提供指导。
