Figure 6

Attachment of Nile Tilapia fish scale-based collagen nanoparticles to theophylline showing the needle structure of theophylline as examined by light microscope (20X) (A) and scanning electron microscope (SEM) (5X) (B).

Attachment of Nile Tilapia fish scale-based collagen nanoparticles to theophylline showing the needle structure of theophylline as examined by light microscope (20X) (A) and scanning electron microscope (SEM) (5X) (B).