MUMBAI, India, Oct. 26 -- Intellectual Property India has published a patent application (202641123761 A) filed by Vellore Institute Of Technology on October 15, 2026, for Graphene Oxide-Superphosphate Composite Alginate Beads For Nutrient Delivery And Pollutant Removal.
Inventors include Amitava Mukherjee; and Abisha Christy Christudoss.
The application for the patent was published on October 23, 2026, under issue no. 43/2026.
Abstract: ABSTRACT GRAPHENE OXIDE-SUPERPHOSPHATE COMPOSITE ALGINATE BEADS FOR NUTRIENT DELIVERY AND POLLUTANT REMOVAL A process for preparing composite alginate beads (10) is provided. Graphene oxide (16) having oxygen-containing functional groups (18) is combined with superphosphate (20), and the graphene oxide (16) and the superphosphate (20) are sonicated in a step (106) to form a graphene oxide-superphosphate composite (22) as a fertilizer component. In a step (110), the fertilizer component is dispersed in an aqueous alginate solution (46) to obtain a mixture. In a step (112), the mixture is introduced dropwise into a calcium chloride solution (52) to ionically crosslink the alginate and form wet beads (54). In a step (114), the wet beads (54) are dried to obtain dry beads (10). The dry beads (10) release phosphorus and calcium into a plant-growth medium (26) and adsorb heavy-metal ions (30) and organic pollutants (32) from the plant-growth medium (26). (Fig. 1)
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