Abstract
The influence of several natural and synthetic additives containing hydroxy and/or carboxyl groups on the kinetics of crystal growth of hydroxyapatite (HAP) at sustained supersaturation has been investigated using the constant composition method. Addition of low levels (0.25 to 5 parts per million) of fulvic acid, tannic acid, benzene hexacarboxylic acid, and poly(acrylic acid) to supersaturated calcium phosphate solutions has an inhibitory influence upon the rate of crystal growth of HAP. Salicyclic acid, under similar experimental conditions, is an ineffective HAP growth inhibitor. Kinetic analysis suggests Langmuir-type adsorption of added ions on the HAP surfaces with a relatively high affinity for the substrate in the concentration range investigated.
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Amjad, Z., Reddy, M.M. (2002). Influence of Humic Compounds on the Crystal Growth of Hydroxyapatite. In: Amjad, Z. (eds) Water Soluble Polymers. Springer, Boston, MA. https://doi.org/10.1007/0-306-46915-4_7
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DOI: https://doi.org/10.1007/0-306-46915-4_7
Publisher Name: Springer, Boston, MA
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