Preparation of foam-like carbon nanotubes/hydroxyapatite composite scaffolds with superparamagnetic properties

► A new method has been employed to prepare the foam-like CNTs/HA composite scaffolds. ► The scaffolds have a withstanding mechanical property for their novel structures. ► About 2 wt% MWNTs with a diameter of 60-100 nm grow in situ from D-HA grains. ► These porous CNTs/HA composite scaffolds have a superparamagnetic property.