Nanoscience And Nanotechnology Essay

Over the past decades Nanoscience and nanotechnology is a springing up field of research interspersing material science and bionanoscience. Nanotechnology is an expanding area use to deal with materials in nano dimensions. Nanotechnology is the study and application of small object which can be used across all fields such as chemistry, biology, physics, material science and engineering. As the name indicates nano means a billionth or 10-9 unit. Its size range usually from 1-100nm (Nair et al., 2010). Nano size particles are quite unique in nature because nano size increase surface to volume ratio. So the main aim to study its minute size is to trigger chemical activity with distinct crystallography that increases the surface area (Sinha et al., 2009). Thus in recent years much research is going on metallic nanoparticle and its properties like catalyst, sensing to optics, antibacterial activity, data storage capacity and its use in agricultural productivity (Nair et al., 2010 & Sharma et al., 2009). Nanoparticles can be synthesized using various approaches including chemical, physical and biological. Although

Global warming and climate change has induced a worldwide awareness to reduce the toxic & hazardous waste materials, thus, the green synthesis route have raised actively the progress in the fields of science and industry (Ahmad et al., 2011). Therefore, biological sources such as bacteria, fungi, yeasts, algae and plants can materials catalyzed specific reaction as a part of modern and realistic biosynthetic strategy. The current prospective on biological system has created a commercial importance due to their enzymatic reactions, photochemical characteristics and herbal