Effects of Ultrasound Irradiation on the Preparation of Ethyl Cellulose Nanocapsules Containing Spirooxazine Dye

Figure 2

SEM images of ethyl cellulose nanocapsules containing spirooxazine prepared by mechanical stirring (a) and by ultrasound irradiation (b) (samples Nr. 1 and Nr. 3 from Table 1).

(a)

(b)