Deposition of Apatite on Carbon Nanofibers in Simulated Body Fluid

Figure 7

SEM photographs of (a) pristine CNFs and pretreated CNFs with (b) mixed acid for 6 h, (c) NaOH solution, and (d) CaCl₂ solution after soaking in 1.5 SBF for 7 days.

(a)

(b)

(c)

(d)