Figure 1From: Application of layered poly (L-lactic acid) cell free scaffold in a rabbit rotator cuff defect model Layered PLLA scaffold. (a) SEM of the rough side of the pile-finished PLLA fabric. Scale bar represents 50 μm. (b) Schema of PLLA scaffold; two fabrics were superimposed in double layers with the smooth surface outside and rough surface inside, and both edges of the double layered fabric were bonded by thermocompression.Back to article page