Pyrene-assisted synthesis of size-controlled gold nanoparticles in sodium dodecyl sulfate micelles

Jin Pei Deng, Chunhung Wu, Cheng His Yang, Chung Yuan Mou

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)

Abstract

Gold nanoparticles prepared by chemical reduction in sodium dodecyl sulfate (SDS) solution are size-controlled with the addition of pyrene. Micellar electrokinetic capillary chromatography (MEKC) is applied to the system to examine the size and polydispersity of gold nanoparticles and to show that pyrene has the extraordinary effect in decreasing the size and narrowing the dispersity of gold nanoparticles. The MEKC electropherograms further suggest that pyrene could be oxidized by the aqueous Au(III) complexes first. All the reduced Au complexes were then solubilized in the pyrene-SDS micelles. The growth of gold nanoparticles beyond the embryonic stage was subsequently inhibited by the encapsulating SDS and electrophilic pyrene.

Original languageEnglish
Pages (from-to)8947-8951
Number of pages5
JournalLangmuir
Volume21
Issue number19
DOIs
Publication statusPublished - Sep 13 2005
Externally publishedYes

ASJC Scopus subject areas

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

Fingerprint

Dive into the research topics of 'Pyrene-assisted synthesis of size-controlled gold nanoparticles in sodium dodecyl sulfate micelles'. Together they form a unique fingerprint.

Cite this