Self-assembled structure of nanoparticles at a liquid-liquid interface

Lenore L. Dai, Renu Sharma, Chih Yuan Wu

Research output: Contribution to journalArticle

105 Scopus citations

Abstract

Pickering emulsions are used as a template to investigate the multiphase interactions and self-assembled structure of nanoparticles at a trichloroethylene-water interface. The dodecanethiol-capped silver nanoparticles of 1-5 nm form randomly distributed multilayers at the liquid/liquid interface, with an interparticle distance varying from close contact to approximately 25 nm. This report offers the first direct observation of nanoparticles in a liquid medium using the environmental transmission electron microscope, as well as the first work revealing the detailed self-assembled structure of nanoparticles at a liquid/liquid interface when the size of the nanoparticles is comparable to the molecular dimension of the liquids.

Original languageEnglish (US)
Pages (from-to)2641-2643
Number of pages3
JournalLangmuir
Volume21
Issue number7
DOIs
StatePublished - Mar 29 2005
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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