Abstract
The excellent photoluminescent properties of Fe3O4-graphene quantum dots (Fe3O4/GQD) nanoparticles prepared at 30 and 90 °C have made them as promising optical probes for imaging. Herein, the cytotoxicity of GQD and Fe3O4/GQD nanoparticles in L929 cells was investigated using MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium Bromide] assay. The cellular apoptosis or necrosis was then evaluated by flow cytometry analysis. The Fe3O4/GQD nanoparticles were characterized by transmission electron microscopy (TEM), Raman spectroscopy (Raman), Fourier-transform infrared spectroscopy (FT-IR), photoluminescence (PL). Characterization results obtained, clearly show that Fe3O4/GQD nanoparticles at 30 and 90 °C has been successfully prepared. Water solubility and excellent photostability along with low cytotoxicity of Fe3O4/GQD nanoparticles prepared at 30 and 90 °C were manifested as a remarkable bioimaging material.
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The authors thank the Prof. Mohammad Ali Shokrgozar of National Cell Bank, Pasteur Institute of Iran, Tehran for cooperation support.
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Sahebalzamani, H., Mehrani, K., Hosseini, H.R.M. et al. Effect of Synthesis Temperature of Magnetic–Fluorescent Nanoparticles on Properties and Cellular Imaging. J Inorg Organomet Polym 30, 4597–4605 (2020). https://doi.org/10.1007/s10904-020-01720-5
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DOI: https://doi.org/10.1007/s10904-020-01720-5