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Two‐Dimensional (2D) or Quasi‐2D Superstructures from DNA‐Coated Colloidal Particles
Author(s) -
Liu Mingzhu,
Zheng Xiaolong,
Grebe Veronica,
He Mingxin,
Pine David J.,
Weck Marcus
Publication year - 2021
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202014045
Subject(s) - monolayer , materials science , colloid , self assembly , nanotechnology , phase diagram , colloidal particle , honeycomb , colloidal crystal , honeycomb structure , phase (matter) , chemical physics , chemistry , composite material , organic chemistry
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.