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. 2022 Jun 18;23(12):6802. doi: 10.3390/ijms23126802

Figure 1.

Figure 1

Approaches to reduce the lateral size of GO through (A) increasing the oxidant mass and the time of oxidation during synthesis, which causes ruptures in defected regions of GO flakes. The figure is adapted from [33,58] with open access permission. Copyright © 2020 Tufano, Vecchione, and Netti. (B) Increasing the ultrasonication time and energy, leading to a decrease in the size of GO from 2 µm to 150 nm. The figure is reprinted with permission from [58]. Copyright 2017 American Chemical Society. (C) Centrifugation and fractionation of 0.01 mg/mL GO in water–glycerol mixture at 3000× g for 1 h. The figure is reprinted with permission from [59] Elsevier.