Fig. 2

(a) FTIR spectrum of cellulose, HAp and, cellulose/HAp, and (b) schematic model shows the interaction between the OH groups of cellulose and Ca2+ of hydroxyapatite.
(a) FTIR spectrum of cellulose, HAp and, cellulose/HAp, and (b) schematic model shows the interaction between the OH groups of cellulose and Ca2+ of hydroxyapatite.