Hydroxyapatite-armored poly(ε-caprolactone) microspheres and hydroxyapatite microcapsules fabricated via a Pickering emulsion route

► Apatite-poly(ε-caprolactone) particles are fabricated from Pickering emulsions. ► Apatite capsules are fabricated from apatite-poly(ε-caprolactone) particles. ► The diameters of apatite-poly(ε-caprolactone) particles can be successfully controlled.