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. 2021 Jul 7;22(14):7323. doi: 10.3390/ijms22147323

Figure 1.

Figure 1

Surface characterization of PDA/GO substrates. (A) Topographical features of the PT surface, PDA (1 mg/mL)-coated, and PDA/GO (1 mg/mL + 1 mg/mL)-coated surfaces were assessed by scanning electron microscopy at ×10 k magnification. (B) Relative atomic composition of each sample.