Figure 1
From: Long Term Glaucoma Drug Delivery Using a Topically Retained Gel/Microsphere Eye Drop

Homogeneous suspension of microspheres in gel matrix. This representative scanning electron microscope (SEM) image of pNIPAAm gel (blue, color added) containing embedded, drug-loaded PLGA microspheres (red, color added) shows that microsphere structure and morphology is maintained and that the microspheres are homogeneously suspended in the gel. Scale bar = 20 μm.