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. 2013 Apr 16;8(4):e60428. doi: 10.1371/journal.pone.0060428

Figure 3. Observation of cellular uptake behavior of carbonate apatite by SEM.

Figure 3

Scanning electron microscopy revealed a process of uptake behavior into HCT116 colon cancer cells. A) The control HCT116 devoid of apatite particles. B) The particles attached on the cell. C) The particles were getting internalized at as early as 45 min, and D) further going into the cells at 90 min.