PEO-Reinforced Hydrogel-Forming PVA Nanofibrous Mats Prepared by Coaxial Electrospinning: A Physicochemical Basis for Biomedical Evaluation.

and average pore diameter of ~ 8 nm. Thermogravimetric analysis shows a broadened intermediate degradation region for the coaxial mat. Overall, integrating a hydrophilic PEO core within a crosslinked PVA sheath enhances the dry state tensile strength of electrospun hydrogel-forming mat while preserving hydration and mesoporosity upon wetting, supporting further optimization for wound dressings.