Practical preparation of anionic mercapto ligand-stabilized gold nanoparticles and their immobilization

Tetsu Yonezawa, Toyoki Kunitake

Research output: Contribution to journalConference articlepeer-review

158 Citations (Scopus)


Gold nanoparticles stabilized by a water-soluble mercapto ligand (sodium 3-mercaptopropionate) were produced by a modified citrate reduction of HAuCl4. No rigorous cleanliness is needed and the reductant is decomposed to CO2. Stable aqueous dispersions of gold nanoparticles without any precipitation for several months could be obtained. The particle size can be controlled by the stabilizer/gold ratios. These gold nanoparticles were incorporated successfully into the interlayers of cast films of cationic bilayers by immersion of the film in gold nanoparticle dispersions. Copyright (C) 1999 Elsevier Science B.V.

Original languageEnglish
Pages (from-to)193-199
Number of pages7
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Issue number1-3
Publication statusPublished - Apr 15 1999
Externally publishedYes
EventProceedings of 1997 9th International Conference on Surface and Colloids Science, 9ICSCS - Sofia, BGR
Duration: Jul 6 1997Jul 12 1997

All Science Journal Classification (ASJC) codes

  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry


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