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SEM micrographs of the optimized PLGA microspheres (prepared using a composition of DLG7E/RG503H/dexamethasone = 21/4/5, w/w/w) at 500X (A) and 1000X (B) magnification. Volume based particle size distribution of the microspheres (C) obtained using an AccuSizer 780A autodiluter particle sizing system. Approximately 140,000 particles were analyzed using the particle sizer.
