writer：Baoqiang Li, Yongliang Wang, Dechang Jia, Yu Zhou
keywords：chiotsan, apatite
source：期刊
specific source：Journal of Biomaterials Science, Polymer Edition
Issue time：2010年

     Based on the chelation properties of the amino group, a chitosan hydrogel obtained via physical cross-linking was used as template for ion assembly. Gradient structural bone-like apatite induced by chitosan hydrogel was achieved via ion assembly within a few hours under ambient conditions, in which amino groups of chitosan acted as anchors between chitosan and apatite nucleation.