Fig. 5. Micrographs and size distribution of VEGF-loaded PLGA MPs (A) C_f = 10 µL min⁻¹, C_d = 2.5 µL min⁻¹, (B) C_f = 70 µL min⁻¹, C_d = 2.5 µL min⁻¹, and (C) C_f = 100 µL min⁻¹, C_d = 2.5 µL min⁻¹, (scale bar = 50 µm). SEM micrograph image of (a) C_f = 10 µL min⁻¹, C_d = 2.5 µL min⁻¹ (scale bar = 15 µm), EDS elemental mapping of (b) carbon and (c) nitrogen. (D) PLGA MPs, (E) PLGA-CQDs MPs.