Photocatalytic oxygen evolution and antibacterial biomimetic repair membrane promote the activity of HUVEC and PC12. (A) The mitochondrial membrane potential staining of HUVEC, (B) The oxygen detection of HUVEC, (C) The CD31 immunofluorescence staining of HUVEC, (D–F) The NF200 immunofluorescence staining of PC12, (G) The mitochondrial membrane potential of PC12, (H) The statistical diagram of B, (I) The statistical diagram of C, and (J) The statistical diagram of E. Scale bar = 20 μm in panels A and G, 200 μm in panels B–F. Data represent the mean ± s.d., n = 3, ∗p < 0.05, ∗∗p < 0.01.