Colloidal alloys with preassembled clusters and spheres

Étienne Ducrot, Mingxin He, Gi Ra Yi, David J. Pine

Research output: Contribution to journalArticle

Abstract

Self-assembly is a powerful approach for constructing colloidal crystals, where spheres, rods or faceted particles can build up a myriad of structures. Nevertheless, many complex or low-coordination architectures, such as diamond, pyrochlore and other sought-after lattices, have eluded self-assembly. Here we introduce a new design principle based on preassembled components of the desired superstructure and programmed nearest-neighbour DNA-mediated interactions, which allows the formation of otherwise unattainable structures. We demonstrate the approach using preassembled colloidal tetrahedra and spheres, obtaining a class of colloidal superstructures, including cubic and tetragonal colloidal crystals, with no known atomic analogues, as well as percolating low-coordination diamond and pyrochlore sublattices never assembled before.

Original languageEnglish (US)
JournalNature Materials
DOIs
StateAccepted/In press - Feb 27 2017

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self assembly
diamonds
crystals
Self assembly
Diamonds
Crystals
Surgical Hemostasis
Carcinoid Tumor
tetrahedrons
sublattices
rods
deoxyribonucleic acid
analogs
interactions
DNA

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Colloidal alloys with preassembled clusters and spheres. / Ducrot, Étienne; He, Mingxin; Yi, Gi Ra; Pine, David J.

In: Nature Materials, 27.02.2017.

Research output: Contribution to journalArticle

Ducrot, Étienne; He, Mingxin; Yi, Gi Ra; Pine, David J. / Colloidal alloys with preassembled clusters and spheres.

In: Nature Materials, 27.02.2017.

Research output: Contribution to journalArticle

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