Fig. 1.

Images of agar-gelatin gel particles, prepared by mixing agar solution (3% w/v) with gelatin solution (4% w/v) at a ratio of 1:1, and then cooling the mixture at room temperature. a Gel particles. b Gel particles immediately after immersion in simulated gastric fluid (SGF). The scale shown in a is 5 mm, whereas in b is 2 mm