Abstract
Abstract Carbon dots (CDs) are versatile nanomaterials with high biocompatibility and attractive optical properties. This research presents a microwave assisted rapid inexpensive method of CDs production using babul seed powder as a novel green source. Various parameters of synthesis were optimized and as obtained CDs were characterized by Transmission electronic microscopy (TEM), X-ray diffraction (XRD), UV–Visible, fluorescence, Fourier-transform infrared (FT-IR), Raman and X-ray photoelectron spectroscopic (XPS) techniques. CDs exhibited excellent water solubility and excitation dependent emission that is stable to pH, ionic strength and resistant to photo bleaching. Furthermore, the cytotoxicity of CDs tested on both normal (Human embryonic kidney HEK-293) and cancerous (Human breast adenocarcinoma MCF-7) cell lines disclosed their high biocompatibility. With these admirable properties, CDs were applied as multicolor cellular imaging agents. Furthermore the antioxidant activity of CDs was investigated by 2, 2-diphenyl-1-picrylhydrazyl (DPPH) assay.
Published Version
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