Robust Optimization of Alginate-Carbopol 940 Bead Formulations

Figure 3

Digital images corresponding to samples during swelling tests (after 180 minutes). (a) batch 11 (0.1 M NaCl), (b) batch 15 (0.01 M NaCl) and (c) batch 16 (without NaCl).

(a)

(b)

(c)