Characterisation of thin chitosan films for guided tissue regeneration purposes

The morphology and structure of thin films containing chitosan (Ch) with montmorillonite (MMT) were characterised by scanning electron microscopy (SEM), atomic force microscopy (AFM) and attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR). Thin films of two chitosan samples and a composition of chitosan with montmorillonite were formed by casting methods from acetic acid solutions and were soaked in a simulated body fluid (SBF) solution at 37C for 14 days. The samples were compared before and after soaking. The obtained results showed growth of new phases containing calcium in all prepared films.