UCNPs-Labeled Electrospun Scaffolds Used to Monitor In Vivo Degradation and Bone Tissue Regeneration

Plycaprolactone/up-conversion nanoparticles/magnesium oxide (PCL/UCNPs/MgO) composite scaffolds were prepared by electrospun based on the luminescence characteristics of up-conversion nanoparticles under near infrared excitation and the osteogenic ability of MgO.