Clustering of hydroxyapatite on a super-twisted collagen microfibril under mechanical tension

Zhong Zhou, Dong Qian, Majid Minary-Jolandan

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

It is well-known that nucleation and growth of the mineral phase in bone are intimately linked to the interaction between the apatite phase and the collagen matrix at the molecular scale. The exact mechanism of this interaction, however, is not clear due to the challenges involved in experimental characterization at the small size-scale. Herein, we employed molecular dynamics (MD) simulations to investigate the early state of nucleation (i.e. clustering) and growth of apatite clusters on a super-twisted collagen microfibril under mechanical tension in an aqueous solution. The results reveal that mechanical tension (force) facilitates the clustering and growth of the mineral phase on collagen. These results contribute to the understanding of hydroxyapatite (HAP)-collagen interaction and bone biomechanics at the microfibril level.

Original languageEnglish (US)
Pages (from-to)2235-2244
Number of pages10
JournalJournal of Materials Chemistry B
Volume5
Issue number12
DOIs
StatePublished - 2017
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)

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