Colloidal gold and silver triangular nanoprisms

Jill E. Millstone, Sarah J. Hurst, Gabriella S. Métraux, Joshua I. Cutler, Chad A. Mirkin

Research output: Contribution to journalReview articlepeer-review

762 Scopus citations


It is now well-known that the size, shape, and composition of nanomaterials can dramatically affect their physical and chemical properties, and that technologies based on nanoscale materials have the potential to revolutionize fields ranging from catalysis to medicine. Among these materials, anisotropic particles are particularly interesting because the decreased symmetry of such particles often leads to new and unusual chemical and physical behavior. Within this class of particles, triangular Au and Ag nanoprisms stand out due to their structure- and environment-dependent optical features, their anisotropic surface energetics, and the emergence of reliable synthetic methods for producing them in bulk quantities with control over their edge lengths and thickness. This Review will describe a variety of solution-based methods for synthesizing Au and Ag triangular prismatic structures, and will address and discuss proposed mechanisms for their formation.

Original languageEnglish (US)
Pages (from-to)646-664
Number of pages19
Issue number6
StatePublished - Mar 20 2009


  • Anisotropic materials
  • Crystal growth
  • Gold
  • Nanoprisms
  • Silver

ASJC Scopus subject areas

  • Biotechnology
  • Biomaterials
  • Chemistry(all)
  • Materials Science(all)


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