In some embodiments, a method of fabricating a skin wound patch includes preparing a biopolymeric solution comprising chitosan, collagen, chondroitin sulfate, elastin, hyaluronic acid, follistatin-like 1 (FSTL-1), iron oxide nanoparticles, and AC2-26 peptide, filtering the biopolymeric solutions through a filter membrane, extruding the biopolymeric solution through an extrusion device to form a nanofibrous composite, collecting the extruded nanofibrous composite on a sterilized plate, and drying the extruded nanofibrous composite into a solid patch. In some embodiments, a skin wound patch includes homogeneously distributed biomolecules, skin materials, pro-inflammatory, and antibacterial agents. In further embodiments, a method of treating a chronic skin wound in a subject in need thereof can include applying any of the patches described herein.