Fig. 1
From: Shape-memory collagen scaffold combined with hyaluronic acid for repairing intervertebral disc
Fabrication and characterization of shape-memory structures. A Schematic illustrations of fabrication and in vivo procedures including nucleotomy, implantation of SMSs, and injection of HA. B Optical and scanning electron microscopy (SEM) images and (C) pore size distributions of the fabricated structures. D Optical images of water contact angle and absorption ability tests. E Quantitative water absorption (n = 4). F Fourier transform-Infrared (FT-IR) spectra of pure (sodium) alginate, collagen, and fabricated shape-memory materials. *p < 0.05, **p < 0.01, and.***p < 0.001