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. 2019 Jan 3;12(1):136. doi: 10.3390/ma12010136

Figure 12.

Figure 12

The (a) surface morphology and (b) cross section of a graphene oxide/hydroxyapatite nanoparticle coating on a high-purity magnesium substrate. Obtained from [103], with permission from Applied Surface Science, Elsevier, 2018.