MUMBAI, India, June 30 -- Intellectual Property India has published a patent application (202641072930 A) filed by Saveetha Institute Of Medical And Technical Sciences on June 12, 2026, for Microwave Assisted Green Synthesis Of Functionalized Carbon Quantum Dots From Bagasse For Chromium D.
Inventors include Hemalatha Kanagarajan; Ramya Govindarajulu; Deepak Nallaswamy Veeraiyan; Sri Vaishnavi Velegatla; Karthikha Vijayakumar Sumathi; Meenaloshini Gopalakrishna N; and K. B. Sharveshra M.
The application for the patent was published on June 26, 2026, under issue no. 26/2026.
Abstract: The current invention describes a novel eco-friendly and sustainable strategy for the synthesis of functionalized carbon quantum dots (CQDs) using bagasse waste material via a microwave-based methodology. Bagasse, which is considered to be agricultural waste, has been used as a carbon precursor in this mcthod due to its cost- effectiveness and sustainability. It involves cyclic_microwave_heating with.a set of ON/OFF switches in conjunction with multi-functionalization by employing tartaric acid, polyethylene glycol (PEG), L-arginine, and ascorbic acid. The CQDs produced in this study show excellent photoluminescence and stability, providing highly sensitive and selective detection of hexavalent chromium (Cr(VI)) via fluorescence quenching mechanism based on electron transfer reaction. It can be employed for monitoring the levels of Cr(VI) in the environment. In addition to that, the CQDs enable Cr(VI) reduction to Cr(III) and adsorption of chromium ions through the functional groups such as -OH, —COOH, and -NH2, thus enabling their elimination from water samples. Moreover, a portable paper sensor is fabricated using cellulose sheets as substrates through immobilization of CQDs using polyvinyl alcohol (PVA). This technology facilitates fast and visual testing without any instrumentation under UV illumination. In all, this technology is environmentally friendly, inexpensive, and efficient as it incorporates green synthesis, detection, and removal of heavy metals into one system.
Disclaimer: Curated by HT Syndication.
