Facile Synthesis, Characterization, and Cytotoxic Activity of Europium-Doped Nanohydroxyapatite

Figure 2

TEM and EDS spectroscopy. (a) Pure HAP, (b) HAPEu3%, (c) HAPeu5%, (d) HAPEu10%, and (e) HAPEu20%. Sizes are estimated to be around 10–50 nm.

(a)

(b)

(c)

(d)

(e)