Fig. 4

(a) SEM (2000X) graph of ChNPs with average diameter size of 21.253 ± 0.194 nm, (b) histogram of ChNPs diameter sizes distribution (PDI < 0.1).
(a) SEM (2000X) graph of ChNPs with average diameter size of 21.253 ± 0.194 nm, (b) histogram of ChNPs diameter sizes distribution (PDI < 0.1).