The scalable synthetic route to colloidal atoms has significantly advanced over the past two decades. Recently, colloidal clusters with DNA-coated cores called “patchy colloidal clusters” have been developed, providing a directional bonding with specific angle of rotation due to the shape complementarity between colloidal clusters. Through a DNA-mediated interlocking process, they are directly assembled into low-coordination colloidal structures, such as cubic diamond lattices. Herein, the significant progress in recent years in the synthesis of patchy colloidal clusters and their assembly in experiments and simulations is reviewed. Furthermore, an outlook is given on the emerging approaches to the patchy colloidal clusters and their potential applications in photonic crystals, metamaterials, topological photonic insulators, and separation membranes.
Bibliographical noteFunding Information:
Y.‐J.K. and J.‐B.M. contributed equally to this work. This research was supported by the National Research Foundation of Korea (Grants NRF‐2017M3A7B8065528 and 2021R1A2C3013800) and the Korea Toray Science Foundation.
© 2022 The Authors. Advanced Materials published by Wiley-VCH GmbH.
- colloidal clusters
- low-coordination colloidal structures
- patchy colloidal clusters
- patchy particles