Fig. 6

A DFT studies on the energy profile diagram of H2O2 decomposition into H2O and O2. Scale bar = 80 µm. B, D X-ray images and quantitative disc height index (DHI) analysis of rat coccygeal vertebrae at 4 and 8 weeks after operation (white arrows: position of the operation discs). C, E MRI scan images and Pfirrmann grade of rat tails at 4 and 8 weeks after disc surgery injected with different materials (white arrows). (n = 3, *P < 0.05, **P < 0.01, ***P < 0.001, ns not significant)