The addition of ZnO nanoparticles and T80 to CS/PVA films
influenced many of the film properties. These properties, revealed via
XRD diffraction, reduce the intra- and intermolecular hydrogen bond
lengths, as also observed in the FTIR study, which results in greater
thermal stability and a decrease in tensile strength and elongation at
break. The morphology showed porosity (approximately 8 μm),
attributed to H2O2 degradation forming oxygen and water, which was
proportional to the increase in the T80 concentration. Also, it was
observed that in Hank's solution an increase in the degradation and
swelling occurred. In these films, antibacterial activity was verified
toward the species S. aureus, attributed to the incorporation of ZnO
nanoparticles into the films.