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  • Title: The preparation of ethylenediamine-modified fluorescent carbon dots and their use in imaging of cells.
    Author: Dong W, Zhou S, Dong Y, Wang J, Ge X, Sui L.
    Journal: Luminescence; 2015 Sep; 30(6):867-71. PubMed ID: 25611700.
    Abstract:
    In this work, fluorescent carbon dots (CDs) were synthesized using a hydrothermal method with glucose as the carbon source and were surface-modified with ethylenediamine. The properties of as-prepared CDs were analyzed by transmission electron microscopy (TEM), Fourier transform infrared (FTIR), ultraviolet-visible light (UV/vis) absorption and fluorescent spectra. Furthermore, CDs conjugated with mouse anti-(human carcinoembryonic antigen) (CEA) monoclonal antibody were successful employed in the biolabeling and fluorescent imaging of human gastric carcinoma cells. In addition, the cytotoxicity of CDs was also tested using human gastric carcinoma cells. There was no apparent cytotoxicity on human gastric carcinoma cells. These results suggest the potential application of the as-prepared CDs in bioimaging and related fields.
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