MUMBAI, India, Nov. 2 -- Intellectual Property India has published a patent application (202621108563 A) filed by Dr. Mamta Tripathi; Dharna Thakur; Dr. Sandhya Patre; Dr. Deepika Mahobiya; Dr. Seema Upadhyay; Dr. Arvind Kumar Sahu; Dr. Vanita Bhardwaj; Dr. Rekha Bhardwaj; Dr. Reetu Sharma; Dr. Nishi Verma; Md Tausif Raza; and Dr. Rainy Agrawal on September 10, 2026, for Amino-Acid-Functionalized Gold Nanoparticles For Targeted Cancer Drug Delivery.
Inventors include Dr. Mamta Tripathi; Dharna Thakur; Dr. Sandhya Patre; Dr. Deepika Mahobiya; Dr. Seema Upadhyay; Dr. Arvind Kumar Sahu; Dr. Vanita Bhardwaj; Dr. Rekha Bhardwaj; Dr. Reetu Sharma; Dr. Nishi Verma; Md Tausif Raza; and Dr. Rainy Agrawal.
The application for the patent was published on October 30, 2026, under issue no. 44/2026.
Abstract: A method (100) for preparing amino-acid-functionalized gold nanoparticles (200) for targeted cancer drug delivery includes preparing (102) an aqueous gold precursor solution, preparing (104) an amino acid solution including cysteine and glycine, combining (106) the solutions at a pH in the range of 7 to 10 and at a temperature in the range of 25°C to 80°C, reducing (108) gold ions to elemental gold to form gold nanoparticles (202) having a diameter in the range of 10 nm to 50 nm, functionalizing (110) the gold nanoparticle surface with an amino acid functional layer (204) derived from cysteine and glycine, and purifying (112) the amino-acid-functionalized gold nanoparticles. A functionalized gold nanoparticle composition (200) includes a gold nanoparticle core (202), an amino acid functional layer (204) including cysteine and glycine surrounding the core, and an anticancer therapeutic agent (206) associated with the amino acid functional layer. (FIG. 2)
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