Hydrothermal fabrication of hydroxyapatite on the PEG-grafted surface of wood from Chinese Glossy Privet

► Polyethylene glycol (PEG) was grafted on Chinese Glossy Privet (CGP) wood surface. ► Hydrated calcium hydrogen phosphate (HCHP) was deposited on the PEG-wood surface. ► The HCHP was transformed into hydroxyapatite by hydrothermal treatment. ► The resulted hydroxyapatite-wood could be a promising bone-repairing material.