Anisotropic nanoparticle complementarity in DNA-mediated co-crystallization

Matthew N. O'Brien, Matthew R. Jones, Byeongdu Lee, Chad A. Mirkin*

*Corresponding author for this work

Research output: Contribution to journalArticle

104 Scopus citations

Abstract

Whether two species will co-crystallize depends on the chemical, physical and structural complementarity of the interacting components. Here, by using DNA as a surface ligand, we selectively co-crystallize mixtures of two different anisotropic nanoparticles and systematically investigate the effects of nanoparticle size and shape complementarity on the resultant crystal symmetry, microstrain, and effective â ∼ DNA bondâ (tm) length and strength. We then use these results to understand a more complicated system where both size and shape complementarity change, and where one nanoparticle can participate in multiple types of directional interactions. Our findings offer improved control of non-spherical nanoparticles as building blocks for the assembly of sophisticated macroscopic materials, and provide a framework to understand complementarity and directional interactions in DNA-mediated nanoparticle crystallization.

Original languageEnglish (US)
Pages (from-to)833-839
Number of pages7
JournalNature materials
Volume14
Issue number8
DOIs
StatePublished - Aug 28 2015

ASJC Scopus subject areas

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

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