Cytotoxicity of Carbon Nanotubes on J774 Macrophages Is a Purification-Dependent Effect

Figure 1

Photomicrophotographs of UP-CNTs and P-CNTs obtained by SEM. Microphotographs show length for UP-CNTs₁ and UP-CNTs₂ ((a), (b) resp.) and diameter for UP-CNTs₁ and UP-CNTs₂ ((c), (d) resp.). (e) and (f) are shown characteristics of P-CNTs₁ and P-CNTs₂ respectively.

(a)

(b)

(c)

(d)

(e)

(f)