Synthesis of size-tunable gold nanoparticles by poly(vinylphenol) and electrostatic multilayer deposition of the gold-poly(vinylphenol) nanocomposites

J Nanosci Nanotechnol. 2004 Sep;4(7):844-8. doi: 10.1166/jnn.2004.117.

Abstract

Water-dispersible gold nanoparticles (GNPs) were synthesized by the polymer in situ redox technique at room temperature using poly(4-vinylphenol) (PVPh) as a simultaneous template/stabilizer and reducing agent. GNPs were characterized by its surface plasmon absorption peak at 536 nm. The average particle size of the gold-poly(4-vinylphenol) (Au-PVPh) nanocomposites decreases with increase in the ratio of PVPh to gold salt. A uniform multilayer of Au-PVPh nanocomposites was fabricated on glass surface by electrostatic layer-by-layer assembly using poly(diallyldimethylammonium chloride) (PDDAC) as the oppositely charged polycation. UV-vis spectra of the consecutive multilayer showed that the absorbance at 549 nm corresponding to GNPs increases linearly with the number of Au-PVPh nanocomposite layers, indicating regular bilayer growth.

MeSH terms

  • Cations
  • Coated Materials, Biocompatible
  • Electrolytes
  • Gold / chemistry*
  • Hydrogen-Ion Concentration
  • Lipid Bilayers / chemistry
  • Materials Testing
  • Microscopy, Electron, Transmission
  • Nanotechnology / methods*
  • Nanotubes / chemistry*
  • Oxidation-Reduction
  • Particle Size
  • Phenol / chemistry*
  • Polymers / chemistry
  • Polyvinyls / chemistry*
  • Spectrophotometry
  • Static Electricity
  • Surface Plasmon Resonance
  • Surface Properties
  • Ultraviolet Rays

Substances

  • Cations
  • Coated Materials, Biocompatible
  • Electrolytes
  • Lipid Bilayers
  • Polymers
  • Polyvinyls
  • Phenol
  • Gold