One-step preparation and characterization of PDDA-protected gold nanoparticles

Hongjun Chen, Yuling Wang, Yizhe Wang, Shaojun Dong*, Erkang Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

129 Citations (Scopus)


Poly(diallyl dimethylammonium) chloride (PDDA), an ordinary and watersoluble cationic polyelectrolyte, was investigated for its ability to generate and stabilize gold colloids from a chloroauric acid precursor. In this reaction, PDDA acted as both reducing and stabilizing agents for gold nanoparticles (AuNPs). More importantly, PDDA is a quaternary ammonium polyelectrolyte, which shows that the scope of the reducing and stabilizing agents for metal nanoparticles can be extended from the amine-containing molecules to quaternary ammonium polyelectrolytes or salts. UV-vis spectroscopy, transmission electron microscopy (TEM), X-ray photoelectron spectra (XPS) and Fourier transform infrared (FTIR) were used to characterize the synthetic AuNPs. The PDDA-protected AuNPs obtained are very stable and have relative narrow size distribution.

Original languageEnglish
Pages (from-to)763-766
Number of pages4
Issue number2
Publication statusPublished - 13 Jan 2006
Externally publishedYes


  • One-step preparation
  • Poly(diallyl dimethylammonium) chloride
  • Quaternary ammonium polyelectrolytes


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