Fig. 6From: PLA-lignin nanofibers as antioxidant biomaterials for cartilage regeneration and osteoarthritis treatmentA Macroscopic observations and B macroscopic score after treatment of nanofibrous membrane on the joint. * denotes p < 0.05, ** denotes p < 0.01, *** denotes p < 0.001 comparison between groupsBack to article page