Cytotoxicity Property of Nano-TiO_𝟐 Sol and Nano-TiO_𝟐 Powder

Figure 7

Morphology of macrophages before and after adding nano-TiO₂ powder in suspension of PBS with 24 h (a–c) and 48 h (d–f) (400×) (a, d) without nano-TiO₂, (b, e) 60 μg·mL⁻¹, (c, f) 60 μg·mL⁻¹ (after 4 hours incubated with MTT).

(a)

(b)

(c)

(d)

(e)

(f)