Abstract
Abstract Particles with at least one dimension in the nanoparticle range (1 nm to 100 nm) known as nanoparticles. These materials have an important role in chemistry, medicine, pharmacy, physics, biology, biotechnology, environment and other fields. Nanoparticles are classified in various types on the basis of material nature, dimensions and sizes. Nanoparticles can be prepared by a variety of methods, including chemical vapour deposition, co-precipitation, chemical reduction, laser ablation, sol-gel, sputtering, and biological methods. In medicine nanoparticles can be used as drug delivery system, as contrast imaging, and for targeted therapy. Apart from this, it can also be used in agriculture sector, catalysis, biosensor, solar cell etc. These applications are currently being explored, and research is ongoing. The future of nanoparticle application is promising as new nanomaterials and methods of synthesis are being developed. Research is also focusing on understanding the environmental impact of nanoparticles and improving safety protocols in their use. With the development of new and improved nanoparticles, the potential for applications in medicine, environment, and agriculture, will continue to expand.