Biocompatibility properties. It has been reported that
mouse fibroblast L929 cells plated on PHB/PHBHHx films
grew better than those plated on PHB and PLA films,
suggesting the PHB/PHBHHx blend is highly biocompatible
(23). Similarly, Zhao et al. (24) demonstrated that
chondrocyte cells grown on PHBHHx/PHB scaffolds
possessed the physiological functions needed for
effective cartilage tissue regeneration. However, the
biocompatibility of PHAs is inadequate because of their
hydrophobic properties (23).