Figure 4: Release of lovastatin from nHA-PGA with varying thicknesses of PGA coating. PGA coating thickness controlled the release rate, with the thin coating (20 wt%) releasing quickest, and the thicker coatings (40 and 60 wt%) releasing slower. The magnified region shows the first 72 hr of release, emphasizing the lag in release from the 60 wt% PGA coated nHA.