Facile construction of electrospun zein nanofiber loaded with Rana chensinensis skin collagen for wound care after caesarean section surgery

Abstract

Numerous types of biomedical applications have found success using electrospun nanofibers. However, electrospinning techniques overlook Zein fibers favoring monolithic and coaxial fibers. Uniaxial electrospinning was used to construct Zein-structured nanofibers for wound healing, with the phase separation of electrospun polycaprolactone (PCL)/polyvinyl alcohol (PVA) in solution, providing the basis for the investigation. Successful loading of silver nanoparticles (AgNPs) and Rana chensinensis skin collagen (RCSCs) into Zein nanofibers (NFs) improved their bioactivity and antibacterial activity as wound dressings. Zein nanofibers were investigated for their heat conductivity, wettability, and mechanical characteristics. The cytotoxic effects of fabricated nanofibers were examined by using L929 fibroblast cells. Ag@RCSCs-NFs also increased cell migration and proliferation, and the wound scratch model was significantly reduced in size using an in vitro scratch assay. The antibacterial studies showed that the Ag@RCSCs-NFs have a potent antibacterial effect against the tested microbial pathogens ( Escherichia coli ( E. coli ) and Staphylococcus aureus ( S. aureus )). Finally, minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of PCL/PVP, RCSCs, and Ag@RCSCs against two different bacteria were determined. These results suggest that wound care using Zein nanofibers loaded with RCSCs and AgNPs during cesarean section surgery has great promise.

Keywords

• electrospun
• silver nanoparticles
• rana chensinensis skin collagen
• wound scratch
• zein nanofibers