“…The VEGF release may accelerate cell migration (Mohsen, Hatef, Hamid, Ali, & Ghasem, ; Torio‐Padron et al, ). However, it seems that keeping VEGF in the scaffold supports vascularization because it not only enhances the proliferation of cells (Carpenter et al, ; Zhou et al, ), but also regulates the interaction between stem cells and ECs (such as directional differentiation of stem cells induced by ECs and pore size in the scaffold) and promotes angiogenesis (Adibfar et al, ; Cho, Moon, Park, Lee, & Seo, ; Zhou et al, ). Thus, in the present study, we designed two kinds of nanoparticles to load SDF‐1 and VEGF, respectively.…”