Intellectual Property India Publishes Patent Application for Development Of A Porous Tpp-Crosslinked Chitosan–hibiscus Rosa-Sinensis Leaf Mucilage Hydrogel Dressing For Exudate Management

MUMBAI, India, Oct. 5 -- Intellectual Property India has published a patent application (202641115677 A) filed by Madhankumar C; Ms. E. Jaivarshini - Rathinam Technical Campus; Mr. K. Avinash - Rathinam Technical Campus; Ms. N. Navya - Rathinam Technical Campus; Ms. S. Divyadharshini - Rathinam Technical Campus; Mr. S. A. Niranjan Kumaar - Rathinam Technical Campus; and Mr. M. Yukendiran Kumar - Rathinam Technical Campus on September 27, 2026, for Development Of A Porous Tpp-Crosslinked Chitosan–hibiscus Rosa-Sinensis Leaf Mucilage Hydrogel Dressing For Exudate Management.

Inventors include Ms. E. Jaivarshini - Rathinam Technical Campus; Mr. K. Avinash - Rathinam Technical Campus; Ms. N. Navya - Rathinam Technical Campus; Ms. S. Divyadharshini - Rathinam Technical Campus; Mr. S. A. Niranjan Kumaar - Rathinam Technical Campus; and Mr. M. Yukendiran Kumar - Rathinam Technical Campus.

The application for the patent was published on October 02, 2026, under issue no. 40/2026.

Abstract: Development of a Porous TPP-Crosslinked Chitosan–Hibiscus rosa-sinensis Leaf Mucilage Hydrogel Dressing for Exudate Management ABSTRACT The present invention relates to a porous biodegradable hydrogel wound dressing comprising chitosan, Hibiscus rosa-sinensis leaf mucilage, and sodium tripolyphosphate (TPP), wherein TPP acts as an ionic crosslinking agent for the chitosan polymer matrix and the plant-derived mucilage functions as a hydrophilic polymeric component. The hydrogel is prepared by dissolving chitosan in an aqueous acidic medium, incorporating an aqueous dispersion of Hibiscus rosa-sinensis leaf mucilage, and gradually adding an aqueous TPP solution to form an ionically crosslinked polymer network. The resulting hydrogel is subjected to controlled freezing followed by freeze-drying to generate an interconnected porous structure. The porous architecture facilitates fluid penetration, absorption, distribution, and temporary retention of wound exudate while supporting moisture management and structural integrity in the hydrated state. The composition and processing parameters can be adjusted to control swelling, porosity, mechanical stability, fluid retention, and degradation characteristics. The invention provides a plant-based, biodegradable hydrogel platform for wound- exudate management and wound-dressing applications.

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