Sugarcane Bagasse-Derived Cellulose Nanocrystal/Polyvinyl Alcohol/Gum Tragacanth Composite Film Incorporated with Betel Leaf Extract as a Versatile Biomaterial for Wound Dressing

Figure 3

SEM micrographs of surface of (a) PVA, (b) PVA/GT, (c) PVA/GT/CNC2, and (d) PVA/GT/CNC10, and cross section of (e) PVA, (f) PVA/GT, (g) PVA/GT/CNC2, and (h) PVA/GT/CNC10 composite films.

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