Synthesis of Stable, Water Soluble Gold Colloids

Presenter: Layal L Rouhana

Published: March 2008

Age: 22 and upwards

Views: 2484 views

Tags: gold

Type: Lectures

Source/institution: FSU

Ligand exchange reactions were utilized in the production of aggregation-resistant gold nanoparticles, having an average diameter of 5 nm, comprising a gold core capped with a mixed shell of citrate and zwitterionic ligands. The prepared nanoparticles were stable in saline media with salt concentrations as high as 3.0 M as well as in the presence of positively charged polyelectrolytes, or biopolymers indicating the absence of non-specific interactions.