Fig. 1From: PLA-lignin nanofibers as antioxidant biomaterials for cartilage regeneration and osteoarthritis treatmentA Synthesis steps of lignin-PLA (LP) copolymers with the corresponding copolymer compositions, and the morphology of electrospun PLLA/LP nanofibers. B Characterization of PLLA/LP nanofibers: a Fiber diameter; b Tensile strength; c Young’s modulus; d creep and recovery strain–time curves and e Creep compliance–time curvesBack to article page