Figure 2

Shape and morphology characterization by field emission scanning electron microscopy (FESEM) images of (a) placebo of SGNCF1 and (b) optimized formulation, SGNCF1; Transmission electronic microphotographs (TEM) of (c) placebo of SGNCF1 and (d) optimized formulation, SGNCF1; Atomic force microscopy (AFM) images of (e) 2D view of placebo of SGNCF1 and (f) 2D view of optimized formulation, SGNCF1; (g) 3D view of placebo of SGNCF1 and (h) 3D view of optimized formulation, SGNCF1.