Development and characterization of thin film composite developed from poly (vinyl alcohol) (PVA)/polyethylene glycol (PEG)/norbixin (NBx)/hydroxyapatite

The advancement of the technology of biomaterials has significantly increased, which allows the development of materials that can be used to repair body parts, increase treatments, and improve the quality of human’s life. This study aimed to characterize poly (vinyl alcohol) (PVA) thin films unprecedented added with polyethylene glycol (PEG), norbixin (NBx) and Hydroxyapatite (HA). The systems were prepared by the casting technique and later characterized by FTIR, DRX, thermogravimetry (TG), differential scanning calorimetry (DSC), and optical microscopy (MO). The FTIR results demonstrated that the blends showed satisfactory band displacements with PEG insertion, as well as the peak intensity in relation to the PVA matrix. By XRD, it was possible to observe a displacement to larger angles with the insertion of PEG in relation to the PVA. The films showed a smooth and homogeneous surface. The structures have shown that they may be a desirable option for bone tissue restoration and reconstruction.