Fig. 7

Characterization of CS-PE films with varying glycerol content (A) Representative photographs and SEM images (surface and cross-section) (3 kV, x500, and scale bar 10 µM) (B) Porosity (C) Swelling ratio (D) Water vapour transmission rate and (E) Dressing pH. Values were expressed as mean ± SD, **P < 0.01, ***P < 0.001 vs. CS-PE-2.5% Gly