Construction of evolutionary tree for morphological engineering of nanoparticles

Kwonnam Sohn, Franklin Kim, Ken C. Pradel, Jinsong Wu, Yong Peng, Feimeng Zhou, Jiaxing Huang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

103 Scopus citations


In addition to chemical composition, the chemistry of nanocrystals involves an extra structural factor-morphology-since many of their properties are size- and shape-dependent. Although often described as artificial atoms or molecules, the morphological control of nanoparticles has not advanced to a level comparable to organic total synthesis, where complex moleCular structures can be rationally designed and prepared through stepwise reactions. Here we report a morphological engineering approach for gold nanoparticles by constructing an evolutionary tree consisting of a few branches of independent growth pathways. Each branch yields a string of evolving, continuously tunable morphologies from one reaction, therefore collectively producing a library of nanoparticles with minimal changes of reaction parameters. In addition, the tree also provides ground rules for designing new morphologies through crossing over different pathways.

Original languageEnglish (US)
Pages (from-to)2191-2198
Number of pages8
JournalACS nano
Issue number8
StatePublished - Aug 25 2009


  • Evolutionary tree
  • Gold nanoparticle
  • Nanor
  • Overgrowth

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)


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