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The nanoparticles are known to reduce toxicity, enhance bioactivity and improve targeting cells. The metal and metal oxide nanoparticles such as gold, silver, zinc oxide, zirconium oxide, copper oxide, copper sulfide, selenium, hydroxyl apatite, and titanium oxide were used in several biomedical applications especially diagnosis of cancer, etc. The selenium nanoparticles (SeNPs) are explored due toits unique characteristics and various known therapeutic benefits such as anti bacterial, anti fungal and anti cancer activities. The selenium nanoparticles actively involved in the free radical scavenging activity and anti inflammatory activity. The antioxidant activities and reducing risk of cancer.In this present study, Cynodondactylon or Bermuda grass mediated synthesis of selenium nanoparticles and it was characterized using UV- vis spectrophotometer. And its antioxidant effect was analysed using DPPH assay. The plant extract of Cynodondactylon was prepared using distilled water and mixed with the sodium selenite solution. The solution was kept in a magnetic stirrer at 100 RPM for constant stirring while being observed for any colour change. The results showed that there was a significant antioxidant activity and peak confirm the selenium nanoparticles formation. Finally we conclude that the selenium nanoparticles can be used in various drug designing aspects in future.
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