Cellulose Acetate 398-10 Asymmetric Membrane Capsules for Osmotically Regulated Delivery of Acyclovir

Figure 9

7A: without osmogen inside and outside the capsule (zero osmotic gradient); 7B: 290 mg SLS inside the capsule and 0 mg outside the capsule (perfect osmotic gradient); 7C: 290 mg SLS inside and 145 mg outside the capsule (hypoosmotic); 7D: 290 mg SLS inside and 430 mg in the media (hyperosmotic).