Development of filaments based on thermoplastic starch and cationic clays suitable for Fused Deposition Modeling

3D printing represents a new efficient, scalable, customizable and sustainable technique useful for the realization of products functional in health field such as patches intended for wounds treatment. Wound represent a serious healthcare problem and the need of new formulations for an effective treatment is still open. Fused deposition modeling (FDM) a technique based on the realization of a 3D printed object using a polymeric filament. Optimize the composition of a biodegradable and biocompatible materials filament suitable for FDM based on the use of thermoplastic starch combined to filler (such as cationic clays) necessary for suitable mechanical properties, fabricated by fused deposition modeling (FDM) three-dimensional (3D) printing to make patches taylored in shape, texture and drugs.