The aim of this research was to develop a new methodology to obtain bioactive coatingson bioinert and biodegradable polymers that are not intrinsically bioactive. In this study, three typesof materials were used as substrates: (i) high molecular weight polyethylene (HMWPE) and twodifferent types of starch based blends (ii) starch/ethylene vinyl alcohol blends, SEVA-C, and (iii)starch/cellulose acetate blends, SCA. These materials were obtained by injection moulding and byextrusion with blowing agents in order to obtain compact/porous 3D architectures. Three types ofbaths were developed in order to produce the newly proposed auto-catalytic Ca-P coatings: (i)alkaline, (ii) acid, and (iii) oxidant bath. The obtained results indicated that it was possible to coatthe materials surfaces with calcium phosphate (Ca-P) layer with only 60 min of immersion in thedifferent types of auto-catalytic solutions. These innovative auto-catalytic electroless route allowsfor the production of an adherent bioactive film on the polymeric surfaces. Furthermore, it waspossible observe by SEM/EDS the clear bioactive nature of the Ca-P coatings after differentimmersion periods, in a simulated body fluid (SBF).
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