Chlorine Modulation Fluorescent Performance of Seaweed-Derived Graphene Quantum Dots for Long-Wavelength Excitation Cell-Imaging Application |
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| Authors: | Weitao Li Ningjia Jiang Bin Wu Yuan Liu Luoman Zhang Jianxin He |
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| Affiliation: | 1.Textile and Garment Industry of Research Institute, Zhongyuan University of Technology, Zhengzhou 450007, China; (N.J.); (L.Z.);2.Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China;3.School of Life Science and Technology, Tongji University, Shanghai 200082, China;4.Anhui Institute of Metrology, Hefei 230051, China; |
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| Abstract: | Biological imaging is an essential means of disease diagnosis. However, semiconductor quantum dots that are used in bioimaging applications comprise toxic metal elements that are nonbiodegradable, causing serious environmental problems. Herein, we developed a novel ecofriendly solvothermal method that uses ethanol as a solvent and doping with chlorine atoms to prepare highly fluorescent graphene quantum dots (GQDs) from seaweed. The GQDs doped with chlorine atoms exhibit high-intensity white fluorescence. Thus, their preliminary application in bioimaging has been confirmed. In addition, clear cell imaging could be performed at an excitation wavelength of 633 nm. |
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| Keywords: | graphene quantum dots 633 nm Cl-doping |
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