MUMBAI, India, Jan. 2 -- Intellectual Property India has published a patent application (202541122865 A) filed by Meenakshi Academy Of Higher Education And Research, Chennai, Tamil Nadu, on Dec. 5, 2025, for 'antifungal stainless-steel drinking water bottle with bio-based phytochemical coating.'
Inventor(s) include Dr. A. Josephine; and Dr. V. Sureka Varalakshmi.
The application for the patent was published on Jan. 2, under issue no. 01/2026.
According to the abstract released by the Intellectual Property India: "The present invention discloses a method of manufacturing a stainless-steel drinking water bottle with antifungal properties, comprising: a. preparing an antifungal phytochemical extract by: i. extracting Azadirachta indica (neem) leaves powder, Curcuma longa (turmeric) rhizomes powder, and Ocimum sanctum (holy basil) leaves powder using ethanol to form an extract; ii. concentrating the extract under reduced pressure to obtain a viscous phytochemical mixture; b. emulsifying the phytochemical mixture with sodium alginate and chitosan in aqueous solution, followed by ionic gelation with calcium chloride to form stable phytochemical microcapsules; c. mixing tetraethyl orthosilicate (TEOS), ethanol, acetic acid, and the phytochemical microcapsules dispersed therein to form sol-gel coating solution; d. applying the sol-gel coating solution onto the interior surface of a stainless-steel bottle by dip-coating at ambient temperature, followed by plasma-enhanced curing to achieve covalent bonding of the coating to the steel surface to form coated bottle; e. drying the coated bottle to obtain stainless-steel drinking water bottle with antifungal properties. The present invention also discloses a stainless-steel drinking water bottle with antifungal properties, prepared by the process as described above."
Disclaimer: Curated by HT Syndication.
