Metal nanoparticles with liquid-crystalline ligands: controlling nanoparticle superlattice structure and properties

Chemphyschem. 2014 May 19;15(7):1283-95. doi: 10.1002/cphc.201301194. Epub 2014 Apr 30.

Abstract

Nanoparticle ordered aggregates are promising candidates for future application in a variety of sensing, optical and electronic technologies, mainly based on collective interactions between individual nano-building blocks. Physicochemical properties of such assemblies depend on nanoparticle spacing, therefore a lot of effort throughout the last years was put on development of assembly methods allowing control over aggregates structure. In this minireview we describe efficient self-assembly process based on the utilization of liquid-crystalline ligands grafted onto nanoparticle surface. We show strategies used to synthesize liquid-crystalline nanoparticles as well as discuss parameters influencing structural and thermal characteristic of aggregates. It is also demonstrated that the liquid-crystalline approach offers access to dynamic self-assembly and metamaterials with anisotropic plasmonic properties, which makes this strategy unique among others.

Keywords: anisotropy; dynamic assembly; ordered aggregate; plasmonic; self-assembly.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Anisotropy
  • Fluorescent Dyes / chemistry
  • Ligands
  • Liquid Crystals / chemistry*
  • Metal Nanoparticles / chemistry*
  • Metal Nanoparticles / ultrastructure*
  • Models, Molecular
  • Nanotechnology / methods
  • Surface Plasmon Resonance / methods

Substances

  • Fluorescent Dyes
  • Ligands