MUMBAI, India, Feb. 6 -- Intellectual Property India has published a patent application (202541123426 A) filed by Saveetha Institute Of Medical And Technical Sciences, Chennai, Tamil Nadu, on Dec. 8, 2025, for 'biomedical potential of green in situ nanoparticles entrapped in polymer.'
Inventor(s) include Koyeli Girigoswami; and Deepak Nallaswamy Veeraiyan.
The application for the patent was published on Feb. 6, under issue no. 06/2026.
According to the abstract released by the Intellectual Property India: "The present invention describes a method for preparation of biosynthesized nano drug using gelatin-alginate co-polymeric matrix, and entrapping in situ synthesized silver nanoparticles using green synthesis method utilizing Calendula officina/is flower extract. The method of synthesis is UV assisted entrapment of nanosilver in a blended polymeric matrix. Calendula officina/is flower powder was dissolved in water and the extract was prepared by ultrasound sonication, heating and stirring followed by filtration. Gelatin was dissolved in the CO extract, heated at 50 C, followed by addition of acetone resulting in precipitation. The supernatant was slowly removed and to the residue, CO extract was added and briefly heated at 50 oc followed by addition of sodium alginate solution with continuous stirring. AgN03 was then added to this blended polymeric mixture and it was stirred and then exposed to UV light briefly. Glutaraldehyde was added and stirring continued and a small amount of CO extract was further added. Finally, calcium chloride was added and stirring was done till the hydrogel was formed. This is our final product."
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