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Dai L, Qi YP, Niu LN, et al. Inorganic-Organic Nanocomposite Assembly Using Collagen as Template and Sodium Tripolyphosphate as A Biomimetic Analog of Matrix Phosphoprotein. Cryst Growth Des. 2011;11(8):3504-3511doi: 10.1021/cg200663v.
Dai, L., Qi, Y. P., Niu, L. N., Liu, Y., Pucci, C. R., Looney, S. W., Ling, J. Q., Pashley, D. H., & Tay, F. R. (2011). Inorganic-Organic Nanocomposite Assembly Using Collagen as Template and Sodium Tripolyphosphate as A Biomimetic Analog of Matrix Phosphoprotein. Crystal growth & design, 11(8), 3504-3511. https://doi.org/10.1021/cg200663v
Dai, Lin, et al. "Inorganic-Organic Nanocomposite Assembly Using Collagen as Template and Sodium Tripolyphosphate as A Biomimetic Analog of Matrix Phosphoprotein." Crystal growth & design vol. 11,8 (2011): 3504-3511. doi: https://doi.org/10.1021/cg200663v
Dai L, Qi YP, Niu LN, Liu Y, Pucci CR, Looney SW, Ling JQ, Pashley DH, Tay FR. Inorganic-Organic Nanocomposite Assembly Using Collagen as Template and Sodium Tripolyphosphate as A Biomimetic Analog of Matrix Phosphoprotein. Cryst Growth Des. 2011 Aug 03;11(8):3504-3511. doi: 10.1021/cg200663v. PMID: 21857797; PMCID: PMC3156482.
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Cryst Growth Des. 2011 Aug 03;11(8):3504-3511. doi: 10.1021/cg200663v.

Inorganic-Organic Nanocomposite Assembly Using Collagen as Template and Sodium Tripolyphosphate as A Biomimetic Analog of Matrix Phosphoprotein.

Crystal growth & design

Lin Dai, Yi-Pin Qi, Li-Na Niu, Yan Liu, Cesar R Pucci, Stephen W Looney, Jun-Qi Ling, David H Pashley, Franklin R Tay

Affiliations

  1. Department of Stomatology, The First Hospital of Wuhan, Wuhan (China).

PMID: 21857797 PMCID: PMC3156482 DOI: 10.1021/cg200663v

Abstract

Nanocomposites created with polycarboxylic acid alone as a stabilization agent for prenucleation clusters-derived amorphous calcium phosphate exhibit non-periodic apatite deposition. In the present study, we report the use of inorganic polyphosphate as a biomimetic analog of matrix phosphoprotein for directing polyacrylic acid-stabilized amorphous nanoprecursor phases to assemble into periodic apatite-collagen nanocomposites. The sorption and desorption characteristics of sodium tripolyphosphate to type I collagen was examined. Periodic nanocomposite assembly with collagen as a template was demonstrated with TEM and SEM using a Portland cement-based resin composite and a phosphate-containing simulated body fluid. Apatite was detected within the collagen at 24 hours and became more distinct at 48 hours, with prenucleation clusters attaching to the collagen fibril surface during the initial infiltration stage. Apatite-collagen nanocomposites at 72 hours were heavily mineralized with periodically-arranged intrafibrillar apatite platelets. Defect-containing nanocomposites caused by desorption of TPP from collagen fibrils were observed in regions lacking the inorganic phase.

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