New Generation of Green Nanoparticles: A Review *Radha Palaniswamy, Sandhiya R and Dhanyasri S. Dept of Biotechnology, Dr. N.G.P. Arts and Science College, Coimbatore – 641048, India Abstract : Medicinal plants are the “backbone” of traditional medicine, which means more than 3.3 billion people in the less developed countries utilize medicinal plants on a regular basis for therapeutic uses. The rich source of therapeutic phytochemicals leads to the development of novel drugs. The phytochemical analysis of the plants is very important commercially and has great interest in pharmaceutical companies for the production of the new drugs for curing of various diseases. Nanotechnology has proved to be a standout among the most dynamic regions of research and development in advanced medical science. Nanoparticle is the most essential part of nanotechnology which has proved to be effective in treating many diseases. Various nanoparticles have been synthesis by using plant extracts which includes silver, gold and copper oxide. Use of plant extracts fro nanoparticles synthesis is favorable over the other biological material as it removes the long process of maintenance of cell culture. The present review provides information on medicinal plants used for synthesis of nanoparticles and its applications. Keywords : nanoparticles, green synthesis, medicinal plants, characterization, antibacterial activity. Introduction: Nano-technology is a rapidly growing field in which research deals with the synthesis, design, and particle structures manipulation which are ranging from 1-100 nm. Nanoparticles show various applications such as environmental, food, health care, optics, healthcare, chemical industries, etc. [1]. Another interesting branch is Nanobiotechnology- a part of nanotechnology, multidisciplinary in nature which investigates the use of nanoparticles in the biological systems.It has proved to be a cutting edge tool among the most dynamic regions of research and development in advanced medical sciencefor treating many diseases [2]. Nanoparticles show specific characteristics as compared to large particles such as their morphology, size and distribution. Chemical and physical methods for synthesis of nanoparticles are costly and releases toxic byproducts in nature. Due to these issues, there is a requirement of an alternative for synthesis of nanoparticles[3].Various nanoparticles have been synthesized by using plant extracts which includes silver, gold, and copper oxide. Use of plant extracts for nanoparticles synthesis is favorable over the other biological material as it removes the long Radha Palaniswamy et al /International Journal of ChemTech Research, 2019,12(2): 292-298. DOI= http://dx.doi.org/10.20902/IJCTR.2019.120238 International Journal of ChemTech Research CODEN (USA): IJCRGG, ISSN: 0974-4290, ISSN(Online):2455-9555 Vol.12 No.02, pp 292-298, 2019