Gold Nanoparticles: Synthesising, Characterizing and Reviewing Novel Application in Recent Years

In this paper we report the synthesis of gold nanoparticles during laser ablation of a metal gold plate in distilled water. The experiments were performed with a first harmonic (1064nm, 6ns, 10Hz) output of a Nd:YAG laser varying the operative fluency between 5Jcm-2 and 15Jcm-2. The results indicate that gold nanoparticles are synthesized at room temperature.In this paper we give an overview of the properties of gold relevant to its potential application in molecular-scale devices absorption spectroscopy and Transmission Electron Microscopy (TEM) were employed to determine the optical properties and size of gold nanoparticles. And novel applications of gold nanoparticles have been studied in various fields.