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. 2020 Mar 13;23(4):100982. doi: 10.1016/j.isci.2020.100982

Figure 1.

Figure 1

Synthesis and Morphology of CA/oPD-CPDs

(A–D) (A) Preparation routes of fluorescent molecule and CA/oPD-CPDs. Morphology of CA/oPD-CPDs in (B) acid (inset is the high-resolution TEM image of CA/oPD-CPDs with a scale bar of 5 nm), (C) neutral, and (D) alkaline aqueous solutions with either HCl or NaOH (inset is the size distribution of CA/oPD-CPDs).