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Continuous synthesis of dispersant-coated hydroxyapatite plates

Gimeno-Fabra, M.; Hild, F.; Dunne, P.; Walton, K.; Grant, D.M.; Irvine, Derek J.; Lester, E.H.

Authors

F. Hild

P. Dunne

K. Walton

DAVID GRANT DAVID.GRANT@NOTTINGHAM.AC.UK
Professor of Materials Science

DEREK IRVINE derek.irvine@nottingham.ac.uk
Professor of Materials Chemistry



Abstract

A continuous flow hydrothermal synthetic route which allows the direct “in situ” capping/coating of hydroxyapatite nanoplates with functional dispersants in a single stage is reported. The methodology induced crystallisation by rapid mixing of streams of preheated water and solutions of reagents in water, whilst the hydrophobic surface modification of the HA platelets was achieved without morphological disruption. The effect of adding the hydrocarbon either before or after the HA platelet formation point has also been assessed, proving that the presence of surfactant at the reaction site does not interfere with the formation of HA and allows for a more efficient binding and extraction of the inorganic materials. The coupling mechanisms between the surfactant and the HA surface have been proposed to be a mixture of covalent and electrostatic interactions (i.e. all forms of chemisorption). This synthesis route is fully scalable to pilot (10 tons per year) and industrial (1000 tons per year) scales.

Citation

Gimeno-Fabra, M., Hild, F., Dunne, P., Walton, K., Grant, D., Irvine, D. J., & Lester, E. (2015). Continuous synthesis of dispersant-coated hydroxyapatite plates. CrystEngComm, 17(32), 6175-6182. doi:10.1039/c5ce00628g

Journal Article Type Article
Acceptance Date Jul 12, 2015
Online Publication Date Jul 14, 2015
Publication Date Aug 28, 2015
Deposit Date Aug 30, 2018
Publicly Available Date Mar 29, 2024
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 17
Issue 32
Pages 6175-6182
DOI https://doi.org/10.1039/c5ce00628g
Public URL https://nottingham-repository.worktribe.com/output/1115186
Publisher URL https://pubs.rsc.org/en/Content/ArticleLanding/2015/CE/C5CE00628G#!divAbstract
PMID 00035891

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