MUMBAI, India, Jan. 9 -- Intellectual Property India has published a patent application (202511115495 A) filed by Nims University, Jaipur, Rajasthan, on Nov. 22, 2025, for 'controlled disintegration core for biodegradable hygiene products.'
Inventor(s) include Akshat Pratap Singh; Gayatri Pandey; and Vaibhav Tamrakar.
The application for the patent was published on Jan. 9, under issue no. 02/2026.
According to the abstract released by the Intellectual Property India: "An eco-friendly, marine-degradable biopolymer assay core (100) for sanitary pads that allows for simultaneous fluid uptake and detection of a biomarker. The biopolymer assay core includes a hydrogel matrix (101) made up from alginate and chitosan and stabilized using a calcium salt cross-linking agent (102), functionalized with a diagnostic reagent (103). A timed disintegration mechanism (104) to maintain structural integrity during use and enable breakdown after disposal. The assay core also has a layered structure (105) with functional layers (105a-105c) and a biodegradable protective film (106) which provide additional sensitivity and eco-safety during use. The method (200) of fabricating the assay core includes preparing alginate and chitosan solutions, functionalizing a diagnostic reagent, fabricating an alginate-chitosan composite, and cross-linking the polymer, followed by adding the resulting composition into sanitary pad (205). During use, interaction of the body fluid (206) with the assay core elicits a visible diagnostic response (207)."
Disclaimer: Curated by HT Syndication.
