Figure 3. FTY720 is released from PLAGA microspheres over 28 days.
(A) Fraction of FTY720 release from PLAGA microspheres with a drug to polymer ratio of 1∶200. The encapsulation efficiency in the microspheres was 70%. Inset: SEM micrograph of FTY720-loaded PLAGA microspheres (scale bar = 100 um). (B) Schematic of in vivo experimental hypothesis.