Biodegradable polyurethane/graphene oxide scaffolds for soft tissue engineering: <i>in vivo</i> behavior assessment

Abstract

In this work, 3D porous electrospun scaffolds based on DegraPol® (DP), a polyester urethane, with different concentrations of graphene oxide (GO) (0.0–2.0 wt%) were obtained. In order to produce scaffolds with increased porosity, solutions of DP and GO were co-electrospun with polyethylene oxide (PEO), which was subsequently removed. The electrospinning resulted in the formation of porous and fibrous scaffolds with superior elasticity. The colloidal Ag was successfully used as a novel method of scaffold sterilization. The results of the in vivo analysis showed scaffold degradation, absence of an inflammatory process and penetration of tissue cells in the scaffold.