MUMBAI, India, Feb. 13 -- Intellectual Property India has published a patent application (202541125212 A) filed by Dr. Salma Kausar M, Bengaluru, Karnataka, on Dec. 11, 2025, for 'development of semiconductors through green synthesis of carbon quantum dots from natural precursors coriandrum sativum ( plant extracts ) and their applications.'
Inventor(s) include Girish M; Dr. Salma Kausar M; Kasi Kanivalan; Preethi C; and Manjunatha Gowdal.
The application for the patent was published on Feb. 13, under issue no. 07/2026.
According to the abstract released by the Intellectual Property India: "The invention relates to a green, microwave-assisted method for synthesizing carbon quantum dots (CQDs) from Coriandrum sativum leaves. Fresh leaves are finely chopped, mixed with de-ionized water, and subjected to rapid microwave irradiation followed by thermal treatment to obtain fluorescent CQDs in liquid and powder form. The synthesized CQDs exhibit strong green fluorescence under UV illumination and possess an energy gap of 3.09 eV, with a refractive index of :2.16K2. Structural analysis usmg XRD contirms crystalline nanoparticles with an average size of 17.38 nm. Raman and FTIR spectroscopy reveal functional groups including C-C, S-S, Se-Se, C-Br, C-0-C, -C=O, -OH, -COOH, and N-H. The CQDs display strong green fluoresc~nce under UV illumination and possess excellent water dispersibility, making them suitable for sensing, bioimaging, photonics, and drug-delivery applications. The invention offers an eco-friendly, cost-effective synthesis route with uniform heating and high purity compared to conventional techniques."
Disclaimer: Curated by HT Syndication.
