Phytosynthesis of Au and Au/ZrO₂ bi-Phasic System Nanoparticles with Evaluation of Their Colloidal Stability.

Due to its easy availability, preparation, handling and non-toxic nature, horsetail extract was chosen as a reducing, stabilizing and functionalizing agent for Au and bi-phasic Au/ZrO₂ nanoparticle phytosynthesis-inorganic nanoparticle synthesis mediated by plant extract. We studied Au and bi-phasic Au/ZrO₂ nanoparticles in colloids by various physical-chemical and analytical methods over 5 weeks. Dynamic Light Scattering and Scanning Transmission Electron Microscopy compared core and hydrodynamic diameters of nanoparticles.