ABSTRACT Problem Statement: In the current study the effort was being made to investigate 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 wavelengths and colors have been used for the exposure of Gold Nanoparticles. The possibilities to manipulate the geometries of Gold Nanoparticles by altering the colors and wavelengths of LASER have been studied with reference to their efficacy against Culex quinquefasciatus. Approach: In the experimental 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 different 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.
Cite this paper
Yadav, S. and Prakash, S. (2018) Effect of LASER on the Synthesis of Gold Nanoparticles with Reference to Geometries. Advances in Nanoparticles, 7, 69-76. doi: 10.4236/anp.2018.74006.
 Jain, P.K., Lee, K.S., El-Sayed, I.H. and El-Sayed, M.A. (2006) Calculated Absorption and Scattering Properties of Gold Nanoparticles of Different Size, Shape, and Composition: Applications in Biological imaging and Biomedicine. The Journal of Physical Chemistry B, 110, 7238-7248. https://doi.org/10.1021/jp057170o
 Kumari, M., Mishra, A., Pandey, S., Singh, S.P., Chaudhry, V., Mudiam, M.K.R. and Nautiyal, C.S. (2016) Physico-Chemical Condition Optimization during Biosynthesis Lead to Development of Improved and Catalytically Efficient Gold Nano Particles. Scientific Reports, 6, Article No. 27575. https://doi.org/10.1038/srep27575
 Mafuné, F., Kohno, J.Y., Takeda, Y. and Kondow, T. (2002) Full Physical Preparation of Size-Selected Gold Nanoparticles in Solution: Laser Ablation and Laser-Induced Size Control. The Journal of Physical Chemistry B, 106, 7575-7577. https://doi.org/10.1021/jp020577y
 Chen, H., Kou, X., Yang, Z., Ni, W. and Wang, J. (2008) Shape- and Size-Dependent Refractive Index Sensitivity of Gold Nanoparticles. Langmuir, 24, 5233-5237. https://doi.org/10.1021/la800305j
 Herlekar, M., Barve, S. and Kumar, R. (2014) Plant-Mediated Green Synthesis of Iron Nanoparticles. Journal of Nanoparticles, 2014, Article ID: 140614. https://doi.org/10.1155/2014/140614
 Zhang, J., Langille, M.R., Personick, M.L., Zhang, K., Li, S. and Mirkin, C.A. (2010) Concave Cubic Gold Nanocrystals with High-Index Facets. Journal of the American Chemical Society, 132, 14012-14014. https://doi.org/10.1021/ja106394k
 Prakash, N.S. and Soni, N. (2011) Factors Affecting the Geometry of Silver Nanoparticles Synthesis in Chrysosporium tropicum and Fusarium oxysporum. American Journal of Nanotechnology, 2, 112-121
 Soni, N. and Prakash, S. (2012) Fungal-Mediated Nano Silver: An Effective Adulticide against Mosquito. Parasitology Research, 111, 2091-2098. https://doi.org/10.1007/s00436-012-3056-x
 Soni, N. and Prakash, S. (2014) Microbial Synthesis of Nanosilver and Nanogold for Mosquito Control. Annals of Microbiology, 64, 1099-1111. https://doi.org/10.1007/s13213-013-0749-z
 Abid, J.P., Wark, A.W., Brevet, P.F. and Girault, H.H. (2002) Preparation of Silver Nanoparticles in Solution from a Silver Salt by Laser Irradiation. Chemical Communications, No. 7, 792-793. https://doi.org/10.1039/b200272h
 Eliezer, S., Eliaz, N., Grossman, E., Fisher, D., Gouzman, I., Henis, Z. and Lereah, Y. (2004) Synthesis of Nanoparticles with Femtosecond Laser Pulses. Physical Review B, 69, Article ID: 14411. https://doi.org/10.1103/PhysRevB.69.144119
 Sylvestre, J.P., Poulin, S., Kabashin, A.V., Sacher, E., Meunier, M. and Luong, J.H. (2004) Surface Chemistry of Gold Nanoparticles Produced by Laser Ablation in Aqueous Media. The Journal of Physical Chemistry B, 108, 16864-16869. https://doi.org/10.1021/jp047134+
 Sukhorukov, G.B., Rogach, A.L., Garstka, M., Springer, S., Parak, W.J., Muñoz-Javier A. and Palankar, R. (2007) Multifunctionalized Polymer Microcapsules: Novel Tools for Biological and Pharmacological Applications. Small, 3, 944-955. https://doi.org/10.1002/smll.200600622