DSC curves for IM and HP-β-CyD system. a IM and HP-β-CyD system in melt extrusion, b IM and HP-β-CyD system in wet extrusion. a γ-form of IM, b HP-β-CyD, c physical mixture of γ-form of IM and HP-β-CyD, d amorphous IM, e physical mixture of amorphous IM and HP-β-CyD, f extrudate containing IM and HP-β-CyD manufactured by melt extrusion, g extrudate containing IM and HP-β-CyD manufactured by wet extrusion