Figure 1.

Timeline of Some Representative Events Regarding Endogenous Fluorescent Carbon Dots Derived from Food Items

Reprinted with permission from Xu et al.¹⁹ (copyright, 2004, American Chemical Society), Sk et al.²⁰ (copyright, 2012, Springer Nature), Jiang et al.²¹ (copyright, 2014, Elsevier), Liao et al. ²² (copyright, 2015, American Chemical Society), Wang et al.²⁴ (copyright, 2017, American Chemical Society), Song et al.²⁵ (copyright, 2019, Elsevier), Li et al.²⁶ (copyright, 2019, The Royal Society of Chemistry), and Li et al.²⁷ (copyright, 2018, American Chemical Society).