Clinically, nanofibrous membranes are required to have sufficient mechanical properties to maintain structural integrity during surgery39. The results of mechanical properties showed that the coaxial nanofiber membrane exhibited higher tensile strength than the blended nanofiber membrane. The reasons may be: 1. The diameter of the coaxial nanofibers is obviously larger than that of the blended nanofibers; 2. There is a bead-like structure in the blended nanofibers, which reduces the mechanical strength of individual fibers, resulting in a decrease in the tensile strength of the nanofiber film by 40 .
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