Figure 2. Particle size distribution.
A] 0.4% chitosan nanoparticles B] 0.01% trypsin encapsulated in 0.4% chitosan nanoparticles, C] 0.02% trypsin encapsulated in 0.4% chitosan nanoparticles and three-dimensional images D] 0.01% trypsin encapsulated in 0.4% chitosan nanoparticles, E] 0.02% trypsin encapsulated in 0.4% chitosan nanoparticles.