Biodegradable Polymers for Microencapsulation Systems

Figure 43

Release curve of the drug delivered by 1 g of microcapsules, in 80 mL of external solution, perfectly mixed, where the process of drug degradation is absent. The diamond symbols represent the experimental data, the dotted line the release predicted by the model that considers a unique class of particles characterized by average properties, and the continuous line the release predicted by the model that uses distinct classes to represent the particle size distribution [133].