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Mater Sci Eng C Mater Biol Appl. 2013 Jul 1;33(5):2914-7. doi: 10.1016/j.msec.2013.03.018. Epub 2013 Mar 26.

Green synthesis of biocompatible carbon dots using aqueous extract of Trapa bispinosa peel.

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  • 1NSN Research Center for Nanotechnology and Bio-Nanotechnology, Ambernath, MS India.


We are reporting highly economical plant based method for the production of luminescent water soluble carbon dots (C-dot) using Indian water plant Trapa bispinosa peel extract without adding any external oxidizing agent at 90 °C. C-dots ranging from 5 to 10nm were found in the solution with a prominent green fluorescence under UV-light (λex=365 nm). UV-vis spectra recorded at different time intervals (30-120 min) displayed signature absorption of C-dots between 400 and 600 nm. Fluorescence spectra of the dispersion after 120 min of synthesis exhibited characteristic emission peaks of C-dots when excited at 350, 400, 450 and 500 nm. C-dots were further analyzed using X-ray diffraction (XRD), Raman Spectroscopy and Thermo-Gravimetric Analysis (TGA). Structure of the C-dots was found to be turbostratic when studied using XRD. C-dots synthesized by our method were found to be exceptionally biocompatible against MDCK cells.

Copyright © 2013 Elsevier B.V. All rights reserved.

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