Fabrication and characterization of Antheraea pernyi silk fibroin-blended P(LLA-CL) nanofibrous scaffolds for peripheral nerve tissue engineering

摘要

Electrospun nanofibers have gained widespreading interest for tissue engineering application.In the present study,ApF/P(LLA-CL) nanofibrous scaffolds were fabricated via electrospinning.The feasibility of the material as tissue engineering nerve scaffold was investigated in vitro.The average diameter increased with decreasing the blend ratio of ApF to P(LLA-CL).Characterization of 13C NMR and FTIR clarified that there is no obvious chemical bond reaction between ApF and P(LLA-CL).The tensile strength and elongation at break increased with the content increase of P(LLA-CL).The surface hydrophilic property of nanofibrous scaffolds enhanced with the increased content of ApF.Cell viability studies with Schwann cells demonstrated that ApF/P(LLA-CL) blended nanofibrous scaffolds significantly promoted cell growth as compare to P(LLA-CL),especially when the weight ratio of ApF to P(LLA-CL) was 25:75.The present work provides a basis for further studies of this novel nanofibrous material (ApF/P(LLA-CL)) in peripheral nerve tissue repair or regeneration.