Well-size-controlled colloidal gold nanoparticles dispersed in organic solvents

Gen Tsutsui, Shujuan Huang, Hiroyuki Sakaue, Shoso Shingubara, Takayuki Takahagi

Research output: Contribution to journalArticlepeer-review

56 Citations (Scopus)


The preparation of well-size-controlled colloidal gold nanoparticles in organic solvent is presented. After the preparation of well-size-controlled aqueous colloidal gold particles, we changed the solvent to an organic one. This technique is required to enable a chemical reaction between gold particles and hydrophobic molecules, since a colloidal gold solution is typically prepared in water using a reduction process. We also investigated the stability of the gold particle suspension, and found that the stability decreases in the sequence of water, ethanol, chloroform, and benzene solution.

Original languageEnglish
Pages (from-to)346-349
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Issue numberPart 1, No. 1
Publication statusPublished - Jan 2001
Externally publishedYes


  • well-size-controlled
  • colloidal gold particles
  • organic solvent
  • reduction
  • centrifugal force
  • ionic double layer


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