chapter  9
Colorimetric Sensing Based on Metallic Nanostructures
Pages 24

The methods for synthesis of AuNPs has been refined and improved over the years and in addition to spherical nanoparticles in sizes ranging from a few nanometers up to about 250 nm, protocols for obtaining other shapes, including cubes, rods and prisms, have also been developed. A more elaborate description of methods for synthesis of gold nanoparticles can be found elsewhere [9].