Nanocomposites (NCs) that are made magnetically responsive in controlled conditions attract continuing interest for their added magnetic properties. In this study, we report on the preparation and full characterization of a multifunctional NC composed of magnetic γ-Fe2O3 nanoparticles (NPs) covalently attached to the surface of polyaminated (polyNH2) poly(2,6-di-pyrrol-1-yl-hexanoic acid) (pDPL) nanotubes (NTs). Such a hybrid conducting polymer iron oxide maghemite γ-Fe 2O3@pDPL NC built specifically on covalent bonding has never been reported. The maghemite γ-Fe2O3 NPs were prepared using an innovative ultrasound-assisted Ce3 + doping process, resulting in polycarboxylation of the NP surface useful for control of aggregation and derivatization of functionality. The second component of the NC, i.e. polyNH2-modified pDPL NTs, was prepared from an acid functional pyrrole species followed by amine modification. The resulting innovative γ-Fe2O3@pDPL NC can be viewed as a multifunctional nanomaterial since it possesses both types of derivatization, i.e.polyCOOH (NPs) and polyNH2 (NTs) combined with magnetic responsivity.