Advances in Nanoparticles, 2018, 7, 69-76 http://www.scirp.org/journal/anp ISSN Online: 2169-0529 ISSN Print: 2169-0510 DOI: 10.4236/anp.2018.74006 Nov. 9, 2018 69 Advances in Nanoparticles Effect of LASER on the Synthesis of Gold Nanoparticles with Reference to Geometries Shweta Yadav, Soam Prakash Department of Zoology, Faculty of Science, Environmental & Advanced Parasitology & Vector Control & Biotechnology Laboratories, Dayalbagh Educational Institute, Agra, India Abstract Problem Statement: In the current study the effort was being made to inves- tigate the effect of LASER light on the shape and geometries of Gold Nanoparticles. Light is an important parameter that plays significant role in the formation of nanoparticles; in this study LASER lights of selected wave- lengths and colors have been used for the exposure of Gold Nanoparticles. The possibilities to manipulate the geometries of Gold Nanoparticles by al- tering the colors and wavelengths of LASER have been studied with reference to their efficacy against Culex quinquefasciatus. Approach: In the experi- mental setup four black boxes are used with no exposure to light sources. Three LASER with selected wavelengths and colors were fixed in the boxes at a specific angle, and then the nanoparticle solution was allowed to react. The micrographs of the Gold nanoparticles have been evaluated through the Transmission Electron Microscope (TEM). Results: The TEM images have shown formation of different shapes of nanoparticles due to exposure in dif- ferent colors and wavelengths of LASER. Thus it explains that the wavelength and colour of the light plays a decisive role in the formation of the shapes and geometries of the nanoparticles. Keywords LASER, Gold Nanoparticles, Geometry, Characterisation 1. Introduction Nanotechnology is defined as the “the designing, fabricating and characteriza- tion, production and application of structures, devices and systems by control- ling shape and size at the nanoscale”. Over the past three decades, nanotechnol- ogy has grown as a promising field to resolve the technological issues prevalent How to cite this paper: Yadav, S. and Prakash, S. (2018) Effect of LASER on the Synthesis of Gold Nanoparticles with Ref- erence to Geometries. Advances in Nano- particles, 7, 69-76. https://doi.org/10.4236/anp.2018.74006 Received: July 31, 2018 Accepted: November 6, 2018 Published: November 9, 2018 Copyright © 2018 by authors and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY 4.0). http://creativecommons.org/licenses/by/4.0/ Open Access