Hierarchically Staggered Nanostructure of Mineralized Collagen as a Bone-Grafting Scaffold.

Liu, Yan; Liu, Shuai; Luo, Dan; Xue, Zhenjie; Yang, Xinan; Gu, Lin; Zhou, Yanheng; Wang, Tie · Adv Mater · 2016

basic_science · Level V

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Abstract

A hierarchical, intrafibrillarly mineralized collagen (HIMC) is achieved through a selective mineralization progress in the collagenous gap regions mediated by poly(acrylic acid) with appropriate molecular weight. The associated topographical features directly correlate with nanomechanical heterogeneities of the HIMC to accommodate a broad range of external loads. Moreover, this hierarchically staggered nanostructure provides an optimized microenvironment to improve bone regeneration by instructing host cells.

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