Scheme 1From: Nanoparticles functionalized with stem cell secretome and CXCR4-overexpressing endothelial membrane for targeted osteoporosis therapyComposition/structure of stem cell mimicking MSC-Sec/CXCR4 NPs and schematic showing the concept of using MSC-Sec/CXCR4 NPs in the treatment of osteoporosisBack to article page