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. 2020 Aug 11;6:12. doi: 10.1038/s41405-020-0040-x

Fig. 4. SEM micrographs of GC at different magnifications (x2500, and x10000).

Fig. 4

a GC-24 and b GC-30. White arrow in (B-1) showed the presence of mineral deposition on the surface of GC-30 which is more clearly observed at x25000 (B-2).