Development of a complex hydrogel of hyaluronan and PVA embedded with silver nanoparticles and its facile studies on Escherichia coli

摘要: Novel nanocomposite hydrogels composed of hyaluronan (HA), poly(vinyl alcohol) (PVA) and silver nanoparticles were prepared by several cycles freezing thawing. The was then characterised using Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), wide-angle X-ray diffraction (XRD) electron microscopy (SEM). complex consisted semi-interpenetrating network structures, with PVA microcrystallines as junction zones. By increasing the HA content, crystallinity melting temperature decreased, whereas glass transition temperatures these materials increased because steric hindrance occurrence intermolecular interactions through hydrogen bonding between in hydrogels. Swelling studies showed that comparison swelling properties cryogels from alone, those can be significantly improved presented ...