MUMBAI, India, Oct. 5 -- Intellectual Property India has published a patent application (202641115333 A) filed by Dayananda Sagar College Of Engineering on September 26, 2026, for Green Synthesis Of Carbon Quantum Dots From Citron Fruit Peel For Sensing Of Toxic Pollutants.
Inventors include Dr. Pradeep H N; Dr. M. Dinamani; Dr. S. Muthaiah; Dr. Meera Gumaste; G Mayur; Samantha Tresa; Sherry Rajesh Dsilva; and Shravani N.
The application for the patent was published on October 02, 2026, under issue no. 40/2026.
Abstract: Quantum nanomaterials, particularly carbon quantum dots (CQDs), have emerged as a promising candidate for environmental monitoring applications due to their distinctive optical and chemical properties. In the present invention, CQDs were synthesized from citron fruit peel, an abundant agricultural waste product, providing a sustainable and low-cost carbon precursor. The resulting material exhibits fluorescence behavior, stability under prolonged illumination, and favorable dispersibility in aqueous media, making it suitable for sensing applications. The proposed green synthesis route removed the need for hazardous reagents and is possible to scale-up for practical deployment. The synthesized CQDs are nanoscale in dimension and possess surface-bound functional groups, including hydroxyl, carboxyl, and amino groups, which facilitate effective interaction with a range of contaminants present in aqueous systems. These CQDs function as fluorescence-based sensing probes, wherein the emission intensity and wavelength undergo measurable change upon exposure to target analytes. This mechanism enables rapid detection of pollutants such as metal ions, organic compounds, and biological contaminants. The material further permits chemical modification of its surface functionalities to enhance selectivity and sensitivity toward specific target species. The present invention establishes a sustainable methodology for the conversion of biomass into functional nanomaterials and demonstrates their applicability in the development of portable systems for the continuous assessment of water quality.
Disclaimer: Curated by HT Syndication.
