Synthesis of uniform gold nanoparticles using non-pathogenic bio-control agent: Evolution of morphology from nano-spheres to triangular nanoprisms

► Room temperature synthesis of Au-nps/nano Δ's using non-pathogenic bio-control agent. ► Formation of exotic phases: fusion of nanospheres to form optically flat prisms. ► Detailed electron microscopic study on the evolution of morphology. ► Isolation of the desired phase by differential centrifugation.