Oxygen-releasing polycaprolactone/calcium peroxide composite microspheres.

Oxygen-releasing polycaprolactone/calcium peroxide (PCL/CaO ) composite microspheres were fabricated via homogenization, electrospray with a single nozzle, and electrospray with a co-axial nozzle, resulting in homogenized, single-walled, and double-walled microspheres, respectively. Scanning electron microscopy revealed that homogenized microspheres had pores, while electrosprayed microspheres did not. Alizarin Red S staining showed a core-shell structure for double-walled microspheres.