MUMBAI, India, July 13 -- Intellectual Property India has published a patent application (202141059928 A) filed by Manivannan Chandrakumar; Sathish Veerasamy; Rameshkumar Arumugam; Arulmani Subramanian; and Sadasivam Kandasamy on December 22, 2021, for Novel Interaction Of Functionalized Anthraquinone With Uracils Using The Fluorescence Lifetime Studies.
Inventors include Manivannan Chandrakumar; Sathish Veerasamy Number; Rameshkumar Arumugam; Arulmani Subramanian; and Sadasivam Kandasamy.
The application for the patent was published on July 10, 2026, under issue no. 28/2026.
Abstract: ABSTRACT OF THE INVENTION The present work focuses on exploring the antioxidant activity of uracil and their derivatives using l-AAQ dye. The interaction between the dye molecule and uracil were probed using steady state and lifetime measurements. Addition of uracil molecules increases the absorbance at 265 nm followed by bathochromic shift and decrease in absorbance is observed at 460 nm accompanied with blue shift. The ground state interaction was also confirmed from lifetime measurements. The fluorescence of l-AAQ was effectively quenched by the H* of uracil molecules. The magnitude of quenching efficiency (kJ was calculated and found to depend on the antioxidant activity of uracil molecules. The antioxidant activity and kq value found to be in good correlation. Therefore l-AAQ can be used to explore the antioxidant activity of antioxidants
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