Toxicity Analysis of Hybrid Nanodiamond/Fe₃O₄ Nanoparticles on Allium cepa L

Figure 3

The surface topology of the ND/Fe3O4 composite from the atomic force microscopy: (a) general scan, (b) large grain size is 250 nm, (c) RMS of the hybrid nanoparticle is 70 nm, and (d) small grain size is 20 nm.

(a)

(b)

(c)

(d)