Preparation of Silver-Doped Alumina Spherical Beads with Antimicrobial Properties

Figure 4

SEM images of AgP-AS treated at 39 mV during 1 min (a) 10,000x and (b) 20,000x and during 5 min (c) 5000x and (d) 22,000x.

(a)

(b)

(c)

(d)