A directional entropic force approach to assemble anisotropic nanoparticles into superlattices

Kaylie L. Young, Michelle L. Personick, Michael Engel, Pablo F. Damasceno, Stacey N. Barnaby, Reiner Bleher, Tao Li, Sharon C. Glotzer, Byeongdu Lee, Chad A. Mirkin

Research output: Contribution to journalArticlepeer-review

66 Scopus citations

Abstract

Not touching but sticking: By using cationic surfactant micelles as depletants, a directional entropic force approach (DEFA) assembles anisotropic nanoparticles into superlattices in solution. The micelles induce the face-to-face stacking of the nanoparticles to maximize the system's entropy. The shape of the nanoparticles determines the symmetry of the superlattice, the interparticle spacing is determined by the charged surfactant.

Original languageEnglish (US)
Pages (from-to)13980-13984
Number of pages5
JournalAngewandte Chemie - International Edition
Volume52
Issue number52
DOIs
StatePublished - Dec 23 2013

Keywords

  • depletion forces
  • entropy
  • nanomaterials
  • nanoparticles
  • surfactants

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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