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[VOLUME 6 I ISSUE 2 I APRIL – JUNE 2019] e ISSN 2348 –1269, Print ISSN 2349-5138 http://ijrar.com/ Cosmos Impact Factor 4.236 AA concentration ranges from 1.86x10-7 to 0.7x10-5 and figure 6(ii), corresponding linear graph plotted with anodic peak current versus concentration of AA. Fig.5. (i) Cyclic voltammetry analysis of different addition of 0.001 M ascorbic acid in 0.1 M phosphate buffer solution (pH 7.02). (ii) Corresponding linear plot. The Cr-CdSe QDs modified electrode favors the electrocatalytic oxidation of ascorbic acid at +0.0 V. The electrode exhibited good stability, and sensitive towards oxidation of AA. Acknowledgement One of the authors (K. Krishna Kumar) acknowledges the financial support extended by UGC UPE Phase-II (New Material Research) and Department of Analytical Chemistry, University of Madras for the facilities. Reference 1. Synthesis of Water-Soluble and Functionalized 4. Conclusion In summary, synthesis of curcumin functionalized CdSe QDs was successfully prepared and used as a redox mediator in chemically modified electrode. The CR functionalized CdSe QDs was fabricated on the PIGE electrode. The modified electrode was used as an electrochemical sensor for the determination of ascorbic acid. Nikhil R. Jana, Christopher Earhart, and Jackie Y. Ying, Nanoparticles by Silica Coating, 2. Dung The Nguyen, Kyo-Seon Kim, Functionalization of magnetic nanoparticles for biomedical Chem. Mater., 2007, 19 (21), pp 5074–5082 applications, Korean J. Chem. Eng., 2014, 31(8), 1289-1305 3. Suryani Saallah, I. Wuled Lenggoro, Nanoparticles Carrying Biological Molecules: Recent Advances and Applications, KONA Powder and Particle Journal, 2018, 89-111 4. Chandan Singh, Azahar Ali, and Gajjala Sumana, Green Synthesis of Graphene Based Biomaterial using Fenugreek Seeds for Lipid Detection ACS Sustainable Chem. Eng. 2016, 4(3), 871-880 5. Paolo Bollella, Christopher Schulz, Gabriele Favero, Franco Mazzei, Roland Ludwig, Lo Gorton, and Riccarda Antiochia, Green Synthesis and Characterization of Gold and Silver Nanoparticles and their Application for Development of a Third Generation Lactose Biosensor, Electroanalysis 2016, 28, 77-86. 6. Tathagata Pal, Shanid Mohiyuddin, and Gopinath Packirisamy, Facile and Green Synthesis of Multicolor Fluorescence Carbon Dots from Curcumin: In Vitro and in Vivo Bioimaging and Other Applications, ACS Omega, 2018, 3 (1), pp 831–843 7. S. Raj, D.R. Shankaran, Curcumin based biocompatible nanofibers for lead ion detection, Sensors Actuators, B Chem. 2016, 226, 318–325 8. A. Ciszewski, G. Milczarek, B. Lewandowska, K. Krutowski, Electrocatalytic Properties of Electropolymerized Ni ( II ) curcumin Complex, Electroanalysis. 2003, 15 (5-6), 518–523. 9. Shruti Nambiar, Ernest Osei, Andre Fleck, Johnson Darko, Anthony J. Mutsaers, Shawn Wettig, Synthesis of curcumin-functionalized gold nanoparticles and cytotoxicity studies in human prostate cancer cell line, Applied Nanoscience 2018, 8 (3), 347-357. 10. Kalaivani, A.; Narayanan, S. Sriman, Cadmium selenide Quantum dots - MWCNTs nanocomposite modified electrode for the Determination of Epinephrine, 11. 12. T. Ota, K. Maehashi, H. Nakashima, K. Oto, K. Murase, Photodegradation of CdSe Quantum Dots Studied by Micro‐Photoluminescence Spectroscopy, P Streetman, B. G.; Banerjee, S. Solid state electronic devices; Prentice Hall: NJ, 2000; p 534 13. Research Paper IJRAR- International Journal of Research and Analytical Reviews 313 Aromatic Dithiocarbamate Ligands Photostability of CdSe Quantum Dots Functionalized with Advanced Materials Research, 2014, 938, 176-181 Yizheng Tan, Song Jin, and Robert J. Hamers, hys. stat. sol. (b), 2001, 224 (1), 169–172 , ACS Appl. Mater. Interfaces, 2013, 5 (24), 12975–12983PDF Image | Curucmin functionalized cadmium selenide quantum dots
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