Two-Dimensional (2D) or Quasi-2D Superstructures from DNA-Coated Colloidal Particles

Mingzhu Liu, Xiaolong Zheng, Veronica Grebe, Mingxin He, David J. Pine, Marcus Weck

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish (US)
Pages (from-to)5744-5748
Number of pages5
JournalAngewandte Chemie - International Edition
Volume60
Issue number11
DOIs
StateAccepted/In press - 2020

Keywords

  • 2D patterns
  • di-patch particles
  • DNA-coated colloids
  • self-assembly
  • superstructures

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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