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. 2021 Oct 11;12(3):233–246. doi: 10.34172/bi.2021.23451

Fig. 4.

Fig. 4

FE-SEM micrographs of pure and Cu-substituted nHA/Cs/Gel scaffolds Monitoring the scaffolds by FE-SEM verified the microscopic spongy and highly porous architecture in which pores were connected to make an interconnected 3-dimensional network. The micropores were found in a variety of sizes mainly < 100 μm for nHA/Cs/Gel scaffolds and > 100 μm for Cu incorporated scaffolds.