Fig. 4.
Multiple GF release via multilayer mineral coating with tuned stability: A) Incorporation of fluoride into mineral coating decelerated the dissolution of mineral coating. B) Dual release of BMP-2/VEGF was achieved by using multilayered microparicles. BMP-2 was released in a sustained manner while VEGF was liberated from mineral coating relatively faster. C) Control over BMP-2 release by changing the coating thickness on the microparticles [142]. Reproduced with permission.