Long-term Photo-degradation of Nanofibrous Composites Based on Poly(3-hydroxybutyrate) Electrospun Fibers Loaded with Zinc Oxide Nanoparticles

Composite mats based on submicron biopolyester fibers, such as poly(3-hydroxyalkanoate)s, and zinc oxide (ZnO) nanoparticles have been exploited in medicine environmental areas, antibacterial wound dressings or filters. Generally, the resulting to be subjected UV irradiation order promote formation of reactive oxygen species, thus activating antimicrobial photocatalytic effect ZnO. Therefore, investigation related influence ZnO poly(3-hydroxyalkanoate)s photo-degradation is required. In this context, present paper addresses long-term nanofibrous poly(3-hydroxybutyrate) (PHB)/ZnO composites derived from two complementary electro-hydrodynamic techniques, namely electrospinning electrospinning/electrospraying tandem processes. A thorough as-obtained PHB/ZnO fibrous implying utilization ATR-FTIR, SEC, SEM analysis pre- post-aging under (313 nm) for a period time 500 h study technique utilized content shielding properties PHB mats.