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. 2013 Sep-Oct;45(5):508–512. doi: 10.4103/0253-7613.117784

Figure 1.

Figure 1

SEM images of dry powder of cZnO (a) and ZnO NP (mean of particle size < 70 nm) (b) and different concentrations of ZnO NP c = 5 mg/5 cc, d = 10 mg/5 cc, e = 20 mg/5 cc (mean of particle size > 133 nm).