Fig. 1. A schematic diagram representing the fabrication process of the PVA-PCL co-spun fiber-based (PPCS) membranes (A). A digital photograph showing the visual appearance of the membrane (B). SEM images showing the morphologies of the PCL (C), PVA (D), and PPCS (E) membranes. A higher magnification image of PPCS showing the component PCL and PVA fibers (F).
