Double‐layer PLLA/PEO_Chitosan nanofibrous mats containing Hypericum perforatum L. as an effective approach for wound treatment

Despite a large number of wound dressing materials in the market, an ideal dressing able to re‐establish both the features and functions of the native skin remains a challenge. Concerning this, the present study aimed to produce a new double‐layer nanofibrous dressing material. The upper layer was fabricated by using Poly( l ‐lactic acid; PLLA) to act as a hydrophobic protective barrier, while the highly porous lower layer composed of a blend of...