Please use this identifier to cite or link to this item:
|Title:||Will fluoride toughen or weaken our teeth? Understandings based on nucleation, morphology, and structural assembly||Authors:||Wang, Z.
|Issue Date:||24-Dec-2009||Citation:||Wang, Z., Ma, G., Liu, X.Y. (2009-12-24). Will fluoride toughen or weaken our teeth? Understandings based on nucleation, morphology, and structural assembly. Journal of Physical Chemistry B 113 (51) : 16393-16399. ScholarBank@NUS Repository. https://doi.org/10.1021/jp905846p||Abstract:||Fluoride exerts a substantial impact on the biominearlization of hydroxyapatite (HAP). In this study, the effect of fluoride on the nucleation kinetics of HAP was examined quantitatively in a simulated body fluid. It was found for the first time that fluoride promotes the nucleation of HAP. Furthermore, both the concentration of fluoride and the supersaturation of HAP play a key role in the formation of an ordered assembly of rodlike HAP crystallites. At relatively low concentrations of fluoride, an ordered assembly of rod-like crystallites similar to the structure of enamel could be obtained in the simulated body fluid, which could be explained by the self-epitaxial nucleation-mediated assembly. At high concentrations, fluoride may lead to the deterioration of the ordered assembled structure of HAP crystallites. That result is caused by the fast nucleation and growth of HAP crystallites when the supply of nucleation seeds is limited, resulting in the formation of spherulites. Our results illustrate how and why fluoride influences the self-assembled structures of HAP crystallites at low and high concentrations of F-. Thus, they will substantially Advance our understanding on the impact of fluoride ions on the mineralization of HAP and consequently on the dental and bone fluorosis. © 2009 American Chemical Society.||Source Title:||Journal of Physical Chemistry B||URI:||http://scholarbank.nus.edu.sg/handle/10635/98588||ISSN:||15206106||DOI:||10.1021/jp905846p|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Sep 18, 2019
WEB OF SCIENCETM
checked on Jul 2, 2019
checked on Sep 21, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.