Fig. 8. (a) The DEX adsorption of PCNFs at different pH values. DEX (b) adsorption and (c) release profiles of PCNFs, 0.5HAC, 1HAC and 2HAC. (d) The DEX release profile of 1HAC at different pH values (3, 7 and 11). (e) The in vitro ALP activity of PCNFs with or without DEX loading. (f) The in vitro ALP activity of DEX loaded particles. (g) Photographs of ARS stained BMSCs after treatment with different samples for 14 days. (h) The OD value of the mineralised matrix dissolved from (g). All the data were analysed using a one-way ANOVA against the osteoconductive group.